The Pyramid Sequerra Loudspeaker T-1 Ribbon Tweeter - A High Quality Audio Speaker That Reaches 40 KHZ and beyond with negligible distortion and no coloration. The remarkable performance of this tweeter springs from the inherent advantages of the ribbon transducer being put to use in a speaker fully, with no design compromises. Basically the ribbon transducer is simple. A thin ribbon of metal is suspended in a powerful transverse magnetic field. The signal current passes through the aluminum ribbon, forcing it to vibrate through the interaction of the current and the magnetic field. The ribbon is the voice coil and the diaphragm. Its 4.5 lb magnet produces a field of 3100 Gauss across the ribbon and although the ribbon is only 0.7 mil thick and has extremely small mass, roughly equivalent to a wavelength of air at 19 KHZ. The fundamental resonance has been put far below the crossover point, at around 100 Hz. When you add the Pyramid T-1 Tweeter to any high-quality loudspeaker system, you will hear detail you never heard before. With Frequency Responses from 3 KHZ, (the lower limit of the ribbon speaker), to 50KHZ are reproduced with low intermodulation and and frequency modulation distortion. It has peakless, resonance-free response over the entire audio range, so the T-1 adds no color of its own to the sound, but simply extends the high-speed range of the system. Highs disperse perfectly over a full 160 degrees in the horizontal plane, for the firmest stereo imaging possible. The Pyramid Model T-1 was aimed for the absolute best. These units have had one owner, who was a mature and responsible stereo enthusiast and can be expected to provide many more years of beautiful sound enjoyment. Please look at the photos carefully and ask any questions, because everyones hearing sense is different. FULL DISCLOSURE *** These speakers are designed to provide enhanced sound quality in the mid-to-high range sound level. It is not intended to handle bass sounds, so you will need to have separate Woofers as well as a cross- over circuit in order to get the full range tonality.

The Pyramid Sequerra Loudspeaker T-1 Ribbon Tweeter - A High Quality Audio Speaker That Reaches 40 KHZ and beyond with negligible distortion and no coloration. The remarkable performance of this tweeter springs from the inherent advantages of the ribbon transducer being put to use in a speaker fully, with no design compromises. Basically the ribbon transducer is simple. A thin ribbon of metal is suspended in a powerful transverse magnetic field. The signal current passes through the aluminum ribbon, forcing it to vibrate through the interaction of the current and the magnetic field. The ribbon is the voice coil and the diaphragm. Its 4.5 lb magnet produces a field of 3100 Gauss across the ribbon and although the ribbon is only 0.7 mil thick and has extremely small mass, roughly equivalent to a wavelength of air at 19 KHZ. The fundamental resonance has been put far below the crossover point, at around 100 Hz. When you add the Pyramid T-1 Tweeter to any high-quality loudspeaker system, you will hear detail you never heard before. With Frequency Responses from 3 KHZ, (the lower limit of the ribbon speaker), to 50KHZ are reproduced with low intermodulation and and frequency modulation distortion. It has peakless, resonance-free response over the entire audio range, so the T-1 adds no color of its own to the sound, but simply extends the high-speed range of the system. Highs disperse perfectly over a full 160 degrees in the horizontal plane, for the firmest stereo imaging possible. The Pyramid Model T-1 was aimed for the absolute best. These units have had one owner, who was a mature and responsible stereo enthusiast and can be expected to provide many more years of beautiful sound enjoyment. Please look at the photos carefully and ask any questions, because everyones hearing sense is different. FULL DISCLOSURE *** These speakers are designed to provide enhanced sound quality in the mid-to-high range sound level. It is not intended to handle bass sounds, so you will need to have separate Woofers as well as a cross- over circuit in order to get the full range tonality.

The Pyramid Sequerra Loudspeaker T-1 Ribbon Tweeter - A High Quality Audio Speaker That Reaches 40 KHZ and beyond with negligible distortion and no coloration. The remarkable performance of this tweeter springs from the inherent advantages of the ribbon transducer being put to use in a speaker fully, with no design compromises. Basically the ribbon transducer is simple. A thin ribbon of metal is suspended in a powerful transverse magnetic field. The signal current passes through the aluminum ribbon, forcing it to vibrate through the interaction of the current and the magnetic field. The ribbon is the voice coil and the diaphragm. Its 4.5 lb magnet produces a field of 3100 Gauss across the ribbon and although the ribbon is only 0.7 mil thick and has extremely small mass, roughly equivalent to a wavelength of air at 19 KHZ. The fundamental resonance has been put far below the crossover point, at around 100 Hz. When you add the Pyramid T-1 Tweeter to any high-quality loudspeaker system, you will hear detail you never heard before. With Frequency Responses from 3 KHZ, (the lower limit of the ribbon speaker), to 50KHZ are reproduced with low intermodulation and and frequency modulation distortion. It has peakless, resonance-free response over the entire audio range, so the T-1 adds no color of its own to the sound, but simply extends the high-speed range of the system. Highs disperse perfectly over a full 160 degrees in the horizontal plane, for the firmest stereo imaging possible. The Pyramid Model T-1 was aimed for the absolute best. These units have had one owner, who was a mature and responsible stereo enthusiast and can be expected to provide many more years of beautiful sound enjoyment. Please look at the photos carefully and ask any questions, because we provide No surprises satisfaction. FULL DISCLOSURE *** These speakers are designed to provide enhanced sound quality in the mid-to-high range sound, It is not intended to handle bass sounds, so you will need to have Woofers as well in order to get full range tonality.

DaySequerra is celebrating its 25th anniversary of the launch of its famed FM Reference by announcing an FMR 25 upgrade program for your tuner, available factory-direct for $3800. Overview The FMR 25 upgrade is designed to breath new life into every DaySequerra FM Reference by addressing head-on the two major challenges facing the 25 year-old high performance analog design: Limited life expectancy of its cathode-ray tube (CRT) display used for tuning and audio displays Reduced signal-to-noise performance caused by HD RadioTM OFDM sideband interference, commonly called HD Radio “self-noise”. Other electronic components typically effected by old age, such as incandescent bulbs are also replaced with more modern solutions to extend the FM Reference’s useful life. TFT to the Rescue. To replace the decades-old CRT display, DaySequerra engineers developed a synthesized VHDL file to configure a Xilinx Spartan 6TM Field Programmable Gate Array (FPGA). The analog IF and audio signals are digitized using a 64X oversampling TI Burr-Brown 24-bit, 96 KHz A-D converter; the FPGA then processes each respectively to provide the Tuning and Audio Vector displays. The user-selected display is output to high contrast 480 by 272 pixel ruggedized TFT display with a fast 20 mS response time. The resultant front panel display has more contrast than the original CRT and its blue trace compliments the DaySequerra timeless industrial design. Another benefit to eliminating the CRT is a substantial reduction in internal heat and electrical noise on the ground plane caused by the original high-voltage CRT drive circuitry. Professionally serviced by David Gill.

The Pyramid Sequerra Loudspeaker T-1 Ribbon Tweeter - A High Quality Audio Speaker That Reaches 40 KHZ and beyond with negligible distortion and no coloration. The remarkable performance of this tweeter springs from the inherent advantages of the ribbon transducer being put to use in a speaker fully, with no design compromises. Basically the ribbon transducer is simple. A thin ribbon of metal is suspended in a powerful transverse magnetic field. The signal current passes through the aluminum ribbon, forcing it to vibrate through the interaction of the current and the magnetic field. The ribbon is the voice coil and the diaphragm. Its 4.5 lb magnet produces a field of 3100 Gauss across the ribbon and although the ribbon is only 0.7 mil thick and has extremely small mass, roughly equivalent to a wavelength of air at 19 KHZ. The fundamental resonance has been put far below the crossover point, at around 100 Hz. When you add the Pyramid T-1 Tweeter to any high-quality loudspeaker system, you will hear detail you never heard before. With Frequency Responses from 3 KHZ, (the lower limit of the ribbon speaker), to 50KHZ are reproduced with low intermodulation and and frequency modulation distortion. It has peakless, resonance-free response over the entire audio range, so the T-1 adds no color of its own to the sound, but simply extends the high-speed range of the system. Highs disperse perfectly over a full 160 degrees in the horizontal plane, for the firmest stereo imaging possible. The Pyramid Model T-1 was aimed for the absolute best. These units have had one owner, who was a mature and responsible stereo enthusiast and can be expected to provide many more years of beautiful sound enjoyment. Please look at the photos carefully and ask any questions, because we provide No surprises satisfaction. FULL DISCLOSURE *** These speakers are designed to provide enhanced sound quality in the mid-to-high range sound, It is not intended to handle bass sounds, so you will need to have Woofers as well in order to get full range tonality.

Untested Estate Sale Find This pair of Sequerra Laboratories speakers is a rare find for any home audio enthusiast. The sleek black design is sure to complement any decor, and the compatibility with the Pyramid Metronome makes for a powerful sound. These speakers are perfect for anyone looking to elevate their home audio experience.

This pair of Sequerra Laboratories speakers is a rare find for any home audio enthusiast. The sleek black design is sure to complement any decor, and the compatibility with the Pyramid Metronome makes for a powerful sound. These speakers are perfect for anyone looking to elevate their home audio experience.

The Pyramid Sequerra Loudspeaker T-1 Ribbon Tweeter - A High Quality Audio Speaker That Reaches 40 KHZ and beyond with negligible distortion and no coloration. The remarkable performance of this tweeter springs from the inherent advantages of the ribbon transducer being put to use in a speaker fully, with no design compromises. Basically the ribbon transducer is simple. A thin ribbon of metal is suspended in a powerful transverse magnetic field. The signal current passes through the aluminum ribbon, forcing it to vibrate through the interaction of the current and the magnetic field. The ribbon is the voice coil and the diaphragm. Its 4.5 lb magnet produces a field of 3100 Gauss across the ribbon and although the ribbon is only 0.7 mil thick and has extremely small mass, roughly equivalent to a wavelength of air at 19 KHZ. The fundamental resonance has been put far below the crossover point, at around 100 Hz. When you add the Pyramid T-1 Tweeter to any high-quality loudspeaker system, you will hear detail you never heard before. With Frequency Responses from 3 KHZ, (the lower limit of the ribbon speaker), to 50KHZ are reproduced with low intermodulation and and frequency modulation distortion. It has peakless, resonance-free response over the entire audio range, so the T-1 adds no color of its own to the sound, but simply extends the high-speed range of the system. Highs disperse perfectly over a full 160 degrees in the horizontal plane, for the firmest stereo imaging possible. The Pyramid Model T-1 was aimed for the absolute best. These units have had one owner, who was a mature and responsible stereo enthusiast and can be expected to provide many more years of beautiful sound enjoyment. Please look at the photos carefully and ask any questions, because we provide No surprises satisfaction. FULL DISCLOSURE *** These speakers are designed to provide enhanced sound quality in the mid-to-high range sound, It is not intended to handle bass sounds, so you will need to have Woofers as well in order to get full range tonality.

The Pyramid Sequerra Loudspeaker T-1 Ribbon Tweeter - A High Quality Audio Speaker That Reaches 40 KHZ and beyond with negligible distortion and no coloration. The remarkable performance of this tweeter springs from the inherent advantages of the ribbon transducer being put to use in a speaker fully, with no design compromises. Basically the ribbon transducer is simple. A thin ribbon of metal is suspended in a powerful transverse magnetic field. The signal current passes through the aluminum ribbon, forcing it to vibrate through the interaction of the current and the magnetic field. The ribbon is the voice coil and the diaphragm. Its 4.5 lb magnet produces a field of 3100 Gauss across the ribbon and although the ribbon is only 0.7 mil thick and has extremely small mass, roughly equivalent to a wavelength of air at 19 KHZ. The fundamental resonance has been put far below the crossover point, at around 100 Hz. When you add the Pyramid T-1 Tweeter to any high-quality loudspeaker system, you will hear detail you never heard before. With Frequency Responses from 3 KHZ, (the lower limit of the ribbon speaker), to 50KHZ are reproduced with low intermodulation and and frequency modulation distortion. It has peakless, resonance-free response over the entire audio range, so the T-1 adds no color of its own to the sound, but simply extends the high-speed range of the system. Highs disperse perfectly over a full 160 degrees in the horizontal plane, for the firmest stereo imaging possible. The Pyramid Model T-1 was aimed for the absolute best. These units have had one owner, who was a mature and responsible stereo enthusiast and can be expected to provide many more years of beautiful sound enjoyment. Please look at the photos carefully and ask any questions, because we provide No surprises satisfaction. FULL DISCLOSURE *** These speakers are designed to provide enhanced sound quality in the mid-to-high range sound, It is not intended to handle bass sounds, so you will need to have Woofers as well in order to get full range tonality.

The Pyramid Sequerra Loudspeaker T-1 Ribbon Tweeter - A High Quality Audio Speaker That Reaches 40 KHZ and beyond with negligible distortion and no coloration. The remarkable performance of this tweeter springs from the inherent advantages of the ribbon transducer being put to use in a speaker fully, with no design compromises. Basically the ribbon transducer is simple. A thin ribbon of metal is suspended in a powerful transverse magnetic field. The signal current passes through the aluminum ribbon, forcing it to vibrate through the interaction of the current and the magnetic field. The ribbon is the voice coil and the diaphragm. Its 4.5 lb magnet produces a field of 3100 Gauss across the ribbon and although the ribbon is only 0.7 mil thick and has extremely small mass, roughly equivalent to a wavelength of air at 19 KHZ. The fundamental resonance has been put far below the crossover point, at around 100 Hz. When you add the Pyramid T-1 Tweeter to any high-quality loudspeaker system, you will hear detail you never heard before. With Frequency Responses from 3 KHZ, (the lower limit of the ribbon speaker), to 50KHZ are reproduced with low intermodulation and and frequency modulation distortion. It has peakless, resonance-free response over the entire audio range, so the T-1 adds no color of its own to the sound, but simply extends the high-speed range of the system. Highs disperse perfectly over a full 160 degrees in the horizontal plane, for the firmest stereo imaging possible. The Pyramid Model T-1 was aimed for the absolute best. These units have had one owner, who was a mature and responsible stereo enthusiast and can be expected to provide many more years of beautiful sound enjoyment. Please look at the photos carefully and ask any questions, because we provide No surprises satisfaction. FULL DISCLOSURE *** These speakers are designed to provide enhanced sound quality in the mid-to-high range sound, It is not intended to handle bass sounds, so you will need to have Woofers as well in order to get full range tonality.

The Pyramid Sequerra Loudspeaker T-1 Ribbon Tweeter - A High Quality Audio Speaker That Reaches 40 KHZ and beyond with negligible distortion and no coloration. The remarkable performance of this tweeter springs from the inherent advantages of the ribbon transducer being put to use in a speaker fully, with no design compromises. Basically the ribbon transducer is simple. A thin ribbon of metal is suspended in a powerful transverse magnetic field. The signal current passes through the aluminum ribbon, forcing it to vibrate through the interaction of the current and the magnetic field. The ribbon is the voice coil and the diaphragm. Its 4.5 lb magnet produces a field of 3100 Gauss across the ribbon and although the ribbon is only 0.7 mil thick and has extremely small mass, roughly equivalent to a wavelength of air at 19 KHZ. The fundamental resonance has been put far below the crossover point, at around 100 Hz. When you add the Pyramid T-1 Tweeter to any high-quality loudspeaker system, you will hear detail you never heard before. With Frequency Responses from 3 KHZ, (the lower limit of the ribbon speaker), to 50KHZ are reproduced with low intermodulation and and frequency modulation distortion. It has peakless, resonance-free response over the entire audio range, so the T-1 adds no color of its own to the sound, but simply extends the high-speed range of the system. Highs disperse perfectly over a full 160 degrees in the horizontal plane, for the firmest stereo imaging possible. The Pyramid Model T-1 was aimed for the absolute best. These units have had one owner, who was a mature and responsible stereo enthusiast and can be expected to provide many more years of beautiful sound enjoyment. Please look at the photos carefully and ask any questions, because we provide No surprises satisfaction. FULL DISCLOSURE *** These speakers are designed to provide enhanced sound quality in the mid-to-high range sound, It is not intended to handle bass sounds, so you will need to have Woofers as well in order to get full range tonality.

The Pyramid Sequerra Loudspeaker T-1 Ribbon Tweeter - A High Quality Audio Speaker That Reaches 40 KHZ and beyond with negligible distortion and no coloration. The remarkable performance of this tweeter springs from the inherent advantages of the ribbon transducer being put to use in a speaker fully, with no design compromises. Basically the ribbon transducer is simple. A thin ribbon of metal is suspended in a powerful transverse magnetic field. The signal current passes through the aluminum ribbon, forcing it to vibrate through the interaction of the current and the magnetic field. The ribbon is the voice coil and the diaphragm. Its 4.5 lb magnet produces a field of 3100 Gauss across the ribbon and although the ribbon is only 0.7 mil thick and has extremely small mass, roughly equivalent to a wavelength of air at 19 KHZ. The fundamental resonance has been put far below the crossover point, at around 100 Hz. When you add the Pyramid T-1 Tweeter to any high-quality loudspeaker system, you will hear detail you never heard before. With Frequency Responses from 3 KHZ, (the lower limit of the ribbon speaker), to 50KHZ are reproduced with low intermodulation and and frequency modulation distortion. It has peakless, resonance-free response over the entire audio range, so the T-1 adds no color of its own to the sound, but simply extends the high-speed range of the system. Highs disperse perfectly over a full 160 degrees in the horizontal plane, for the firmest stereo imaging possible. The Pyramid Model T-1 was aimed for the absolute best. These units have had one owner, who was a mature and responsible stereo enthusiast and can be expected to provide many more years of beautiful sound enjoyment. Please look at the photos carefully and ask any questions, because we provide No surprises satisfaction. FULL DISCLOSURE *** These speakers are designed to provide enhanced sound quality in the mid-to-high range sound, It is not intended to handle bass sounds, so you will need to have Woofers as well in order to get full range tonality.

The Pyramid Sequerra Loudspeaker T-1 Ribbon Tweeter - A High Quality Audio Speaker That Reaches 40 KHZ and beyond with negligible distortion and no coloration. The remarkable performance of this tweeter springs from the inherent advantages of the ribbon transducer being put to use in a speaker fully, with no design compromises. Basically the ribbon transducer is simple. A thin ribbon of metal is suspended in a powerful transverse magnetic field. The signal current passes through the aluminum ribbon, forcing it to vibrate through the interaction of the current and the magnetic field. The ribbon is the voice coil and the diaphragm. Its 4.5 lb magnet produces a field of 3100 Gauss across the ribbon and although the ribbon is only 0.7 mil thick and has extremely small mass, roughly equivalent to a wavelength of air at 19 KHZ. The fundamental resonance has been put far below the crossover point, at around 100 Hz. When you add the Pyramid T-1 Tweeter to any high-quality loudspeaker system, you will hear detail you never heard before. With Frequency Responses from 3 KHZ, (the lower limit of the ribbon speaker), to 50KHZ are reproduced with low intermodulation and and frequency modulation distortion. It has peakless, resonance-free response over the entire audio range, so the T-1 adds no color of its own to the sound, but simply extends the high-speed range of the system. Highs disperse perfectly over a full 160 degrees in the horizontal plane, for the firmest stereo imaging possible. The Pyramid Model T-1 was aimed for the absolute best. These units have had one owner, who was a mature and responsible stereo enthusiast and can be expected to provide many more years of beautiful sound enjoyment. Please look at the photos carefully and ask any questions, because we provide No surprises satisfaction. FULL DISCLOSURE *** These speakers are designed to provide enhanced sound quality in the mid-to-high range sound, It is not intended to handle bass sounds, so you will need to have Woofers as well in order to get full range tonality.

The Pyramid Sequerra Loudspeaker T-1 Ribbon Tweeter - A High Quality Audio Speaker That Reaches 40 KHZ and beyond with negligible distortion and no coloration. The remarkable performance of this tweeter springs from the inherent advantages of the ribbon transducer being put to use in a speaker fully, with no design compromises. Basically the ribbon transducer is simple. A thin ribbon of metal is suspended in a powerful transverse magnetic field. The signal current passes through the aluminum ribbon, forcing it to vibrate through the interaction of the current and the magnetic field. The ribbon is the voice coil and the diaphragm. Its 4.5 lb magnet produces a field of 3100 Gauss across the ribbon and although the ribbon is only 0.7 mil thick and has extremely small mass, roughly equivalent to a wavelength of air at 19 KHZ. The fundamental resonance has been put far below the crossover point, at around 100 Hz. When you add the Pyramid T-1 Tweeter to any high-quality loudspeaker system, you will hear detail you never heard before. With Frequency Responses from 3 KHZ, (the lower limit of the ribbon speaker), to 50KHZ are reproduced with low intermodulation and and frequency modulation distortion. It has peakless, resonance-free response over the entire audio range, so the T-1 adds no color of its own to the sound, but simply extends the high-speed range of the system. Highs disperse perfectly over a full 160 degrees in the horizontal plane, for the firmest stereo imaging possible. The Pyramid Model T-1 was aimed for the absolute best. These units have had one owner, who was a mature and responsible stereo enthusiast and can be expected to provide many more years of beautiful sound enjoyment. Please look at the photos carefully and ask any questions, because we provide No surprises satisfaction. FULL DISCLOSURE *** These speakers are designed to provide enhanced sound quality in the mid-to-high range sound, It is not intended to handle bass sounds, so you will need to have Woofers as well in order to get full range tonality.

I am selling a matched pair (2) of the legendary T-9 Ribbon Tweeters Speakers by Dick Sequerra One speaker works great but the other has lower output volume. I opened the foam grills and examined the inside of both. I cant tell anything wrong. The appearance of both speakers look the same to me (see pictures). I also used multimeter to measure the DC resistance across each sides (front and back on each speaker) of the ribbons; and all four got the same readings of about 0.5-0.6 ohm (see pictures). I am not technical person and cant tell the cause. So, my lower than usual price reflects the condition these speakers are in. Please bid accordingly. One grill has a dent which does not appear to do anything bad. The speakers are in good physical condition too. The cabinets are all good, The sale includes just the two ribbon speakers in the pictures; no manual, box, or any other accessories. Please examine the pictures carefully for they are part of description. I pack well and ship worldwide. Quite heavy for the size.

I am selling a matched pair (2) of the legendary T-9 Ribbon Tweeters Speakers by Dick Sequerra One speaker works great but the other has lower output volume. I opened the foam grills and examined the inside of both. I cant tell anything wrong. The appearance of both speakers look the same to me (see pictures). I also used multimeter to measure the DC resistance across each sides (front and back on each speaker) of the ribbons; and all four got the same readings of about 0.5-0.6 ohm (see pictures). I am not technical person and cant tell the cause. So, my lower than usual price reflects the condition these speakers are in. Please bid accordingly. One grill has a dent which does not appear to do anything bad. The speakers are in good physical condition too. The cabinets are all good, The sale includes just the two ribbon speakers in the pictures; no manual, box, or any other accessories. Please examine the pictures carefully for they are part of description. I pack well and ship worldwide. Quite heavy for the size.

The Pyramid Sequerra Loudspeaker T-1 Ribbon Tweeter - A High Quality Audio Speaker That Reaches 40 KHZ and beyond with negligible distortion and no coloration. The remarkable performance of this tweeter springs from the inherent advantages of the ribbon transducer being put to use in a speaker fully, with no design compromises. Basically the ribbon transducer is simple. A thin ribbon of metal is suspended in a powerful transverse magnetic field. The signal current passes through the aluminum ribbon, forcing it to vibrate through the interaction of the current and the magnetic field. The ribbon is the voice coil and the diaphragm. Its 4.5 lb magnet produces a field of 3100 Gauss across the ribbon and although the ribbon is only 0.7 mil thick and has extremely small mass, roughly equivalent to a wavelength of air at 19 KHZ. The fundamental resonance has been put far below the crossover point, at around 100 Hz. When you add the Pyramid T-1 Tweeter to any high-quality loudspeaker system, you will hear detail you never heard before. With Frequency Responses from 3 KHZ, (the lower limit of the ribbon speaker), to 50KHZ are reproduced with low intermodulation and and frequency modulation distortion. It has peakless, resonance-free response over the entire audio range, so the T-1 adds no color of its own to the sound, but simply extends the high-speed range of the system. Highs disperse perfectly over a full 160 degrees in the horizontal plane, for the firmest stereo imaging possible. The Pyramid Model T-1 was aimed for the absolute best. These units have had one owner, who was a mature and responsible stereo enthusiast and can be expected to provide many more years of beautiful sound enjoyment. Please look at the photos carefully and ask any questions, because we provide No surprises satisfaction. FULL DISCLOSURE *** These speakers are designed to provide enhanced sound quality in the mid-to-high range sound, It is not intended to handle bass sounds, so you will need to have Woofers as well in order to get full range tonality.

The Pyramid Sequerra Loudspeaker T-1 Ribbon Tweeter - A High Quality Audio Speaker That Reaches 40 KHZ and beyond with negligible distortion and no coloration. The remarkable performance of this tweeter springs from the inherent advantages of the ribbon transducer being put to use in a speaker fully, with no design compromises. Basically the ribbon transducer is simple. A thin ribbon of metal is suspended in a powerful transverse magnetic field. The signal current passes through the aluminum ribbon, forcing it to vibrate through the interaction of the current and the magnetic field. The ribbon is the voice coil and the diaphragm. Its 4.5 lb magnet produces a field of 3100 Gauss across the ribbon and although the ribbon is only 0.7 mil thick and has extremely small mass, roughly equivalent to a wavelength of air at 19 KHZ. The fundamental resonance has been put far below the crossover point, at around 100 Hz. When you add the Pyramid T-1 Tweeter to any high-quality loudspeaker system, you will hear detail you never heard before. With Frequency Responses from 3 KHZ, (the lower limit of the ribbon speaker), to 50KHZ are reproduced with low intermodulation and and frequency modulation distortion. It has peakless, resonance-free response over the entire audio range, so the T-1 adds no color of its own to the sound, but simply extends the high-speed range of the system. Highs disperse perfectly over a full 160 degrees in the horizontal plane, for the firmest stereo imaging possible. The Pyramid Model T-1 was aimed for the absolute best. These units have had one owner, who was a mature and responsible stereo enthusiast and can be expected to provide many more years of beautiful sound enjoyment. Please look at the photos carefully and ask any questions, because we provide No surprises satisfaction. FULL DISCLOSURE *** These speakers are designed to provide enhanced sound quality in the mid-to-high range sound, It is not intended to handle bass sounds, so you will need to have Woofers as well in order to get full range tonality.

The Pyramid Sequerra Loudspeaker T-1 Ribbon Tweeter - A High Quality Audio Speaker That Reaches 40 KHZ and beyond with negligible distortion and no coloration. The remarkable performance of this tweeter springs from the inherent advantages of the ribbon transducer being put to use in a speaker fully, with no design compromises. Basically the ribbon transducer is simple. A thin ribbon of metal is suspended in a powerful transverse magnetic field. The signal current passes through the aluminum ribbon, forcing it to vibrate through the interaction of the current and the magnetic field. The ribbon is the voice coil and the diaphragm. Its 4.5 lb magnet produces a field of 3100 Gauss across the ribbon and although the ribbon is only 0.7 mil thick and has extremely small mass, roughly equivalent to a wavelength of air at 19 KHZ. The fundamental resonance has been put far below the crossover point, at around 100 Hz. When you add the Pyramid T-1 Tweeter to any high-quality loudspeaker system, you will hear detail you never heard before. With Frequency Responses from 3 KHZ, (the lower limit of the ribbon speaker), to 50KHZ are reproduced with low intermodulation and and frequency modulation distortion. It has peakless, resonance-free response over the entire audio range, so the T-1 adds no color of its own to the sound, but simply extends the high-speed range of the system. Highs disperse perfectly over a full 160 degrees in the horizontal plane, for the firmest stereo imaging possible. The Pyramid Model T-1 was aimed for the absolute best. These units have had one owner, who was a mature and responsible stereo enthusiast and can be expected to provide many more years of beautiful sound enjoyment. Please look at the photos carefully and ask any questions, because we provide No surprises satisfaction. FULL DISCLOSURE *** These speakers are designed to provide enhanced sound quality in the mid-to-high range sound, It is not intended to handle bass sounds, so you will need to have Woofers as well in order to get full range tonality.

The Pyramid Sequerra Loudspeaker T-1 Ribbon Tweeter - A High Quality Audio Speaker That Reaches 40 KHZ and beyond with negligible distortion and no coloration. The remarkable performance of this tweeter springs from the inherent advantages of the ribbon transducer being put to use in a speaker fully, with no design compromises. Basically the ribbon transducer is simple. A thin ribbon of metal is suspended in a powerful transverse magnetic field. The signal current passes through the aluminum ribbon, forcing it to vibrate through the interaction of the current and the magnetic field. The ribbon is the voice coil and the diaphragm. Its 4.5 lb magnet produces a field of 3100 Gauss across the ribbon and although the ribbon is only 0.7 mil thick and has extremely small mass, roughly equivalent to a wavelength of air at 19 KHZ. The fundamental resonance has been put far below the crossover point, at around 100 Hz. When you add the Pyramid T-1 Tweeter to any high-quality loudspeaker system, you will hear detail you never heard before. With Frequency Responses from 3 KHZ, (the lower limit of the ribbon speaker), to 50KHZ are reproduced with low intermodulation and and frequency modulation distortion. It has peakless, resonance-free response over the entire audio range, so the T-1 adds no color of its own to the sound, but simply extends the high-speed range of the system. Highs disperse perfectly over a full 160 degrees in the horizontal plane, for the firmest stereo imaging possible. The Pyramid Model T-1 was aimed for the absolute best. These units have had one owner, who was a mature and responsible stereo enthusiast and can be expected to provide many more years of beautiful sound enjoyment. Please look at the photos carefully and ask any questions, because we provide No surprises satisfaction. FULL DISCLOSURE *** These speakers are designed to provide enhanced sound quality in the mid-to-high range sound, It is not intended to handle bass sounds, so you will need to have Woofers as well in order to get full range tonality.

Here is an amazing and beautiful Vintage 1992 Day Sequerra DaySequerra FM Reference Audiophile Tuner in Box. Serial # 210336. Davidson Roth Corp. Spectacular piece from the original owner with low hours. It comes with the original owners manual and factory shipping box with inserts. Fully tested and it sounds amazing. Display is very ledgable and the faceplate is super clean as shown. Overall in excellent cosmetic and working condition as shown. This will make a wonderful addition to anyones collection. Money back guarantee you will not be disappointed. Click the Enlarge tab to view all pictures for details. I do not offer Buy-It-Nows and do not end my auctions early. Buyer to pay actual shipping of 39 lbs.

I am selling a matched pair (2) of the legendary T-9 Ribbon Tweeters Speakers by Dick Sequerra All drivers are in working condition. The speakers are in good physical condition too. The cabinets are all good, The sale includes just the two ribbon speakers in the pictures; no manual, box, or any other accessories. Please examine the pictures carefully for they are part of description. I pack well and ship worldwide. Quite heavy for the size.