Description
DESCRIPTION: UP FOR SALE IS SAE P101 COMPUTER DIRECT-LINE PREAMPLIFIER.PREAMP WORKS GREAT, ALL FUNCTIONS PERFORM FLAWLESSLY, VERY POWERFUL UNIT. FRONT LIGHTS WORK PROPERLY AND ILLUMINATE BRIGHTLY. ALL INPUTS AND OUTPUTS WORK HOW THEY SUPPOSE TO. THEY ALL PUT OUT CLEAR, UNDISTORTED SOUND. ALL PUSH BUTTONS ARE INTACT AND IN PERFECTLY FINE ORDER.RECENTLY WAS BENCH CHECKED, SERVICED, CLEANED, LUBED AND FULLY TESTED BY PROFESSIONAL TECH WITH 30+ YEARS OF EXPERIENCE. COSMETICALLY SPEAKING, THIS ITEM IS IN GOOD LOOKING CONDITION WITH FEW MINOR SIGNS OF USE AND WEAR. YOU CAN FIND FEW LIGHT, SURFACE SCRATCHES AND SCUFFS HERE AND THERE, BUT NOTHING MAJOR OR WORTH TO POINT OUT. EXCELLENT WORKING AND GOOD PRESENTABLE LOOKING CONDITION. PLEASE FEEL FREE TO CONTACT US IF YOU NEED MORE INFO. PLEASE CHECK ALL THE PICTURES AND LET YOUR EYES BE A JUDGE. THEY ARE ALSO PART OF THIS DESCRIPTION. THANKS.MADE IN USA.S/N: 001792 ADDITIONAL INFO FOUND ONLINE:The SAE P101 Computer Direct-Line preamplifier is a high-performance device with several advanced control and circuit features. As its name suggests, the P101 uses digital circuits to perform almost all the functions normally handled by physical switches and potentiometers. The knob-free front panel contains only momentary-contact flat pushbuttons with adjacent lights to show their status. The “Direct-Line” part of the preamplifier’s name refers to the fact that all physical signal paths are at or immediately adjacent to the rear panel where the signal-input and -output connectors are located. All signal switching is performed (separately for each channel) by tiny relays with gold-plated contacts; these are activated by digital logic circuits that respond to a light touch on a front-panel button.The P101 has no tone controls, and a low filter is its only conventional signal-modification function. It has inputs for both moving-magnet (MM) and moving-coil (MC) phono cartridges through separate preamplifier sections optimized for their functions. The gain of the MC preamplifier is automatically adjusted by the impedance of the cartridge connected to it, adapting the circuit for the probable output voltage of the cartridge. The capacitance and resistance of the MM phono input are separately switchable to match the cartridge’s loading requirements. The two high-level inputs are marked tuner and video. There is a single set of tape connections with a monitoring (but not dubbing) facility, and an external-processor loop that can switch devices such as equalizers and other signal modifiers into the line or tape signal paths. It can also be used for a second tape deck. The preamplifier’s operating mode can be set to stereo, reversed stereo, or mono.A unique and useful feature of the SAE P101 is its switchable phase (polarity). Each channel can be switched independently to an inverting or a non-inverting mode, making it easy to correct for an occasional recording with out-of-phase channels or an inadvertent speaker-line polarity reversal. There are two sets of main preamp outputs in the rear which are always in opposite phase. This makes it possible to drive a stereo power amplifier in a bridged mode for high-power mono output. (When a stereo amplifier’s two inputs are driven in opposite phase and a single 8-ohm speaker is connected across the two “hot” speaker outputs, it becomes a mono amplifier of roughly twice the normal stereo 4-ohm power-output rating. Also, by operating both front-panel phase switches, the absolute phase of the program can be reversed easily (there are those who claim that absolute polarity, from the original sound source to the loudspeaker cone motion, is important for fully natural sound).There is provision for an optional speaker-switching device that plugs into a socket in the rear of the P101, making it possible to switch the power-amplifier outputs to either or both of two pairs of speakers. There is a headphone jack on the front panel. Whenever the preamplifier is plugged into an energized a.c. outlet, a small “on-standby” power supply keeps the computer memories active and illuminates a red LED next to the standby button. A momentary touch of standby turns on the preamplifier, extinguishes the light, and turns on red LEDs next to the various last-used selector buttons (input source, tape monitoring, etc.). Touching the gain button reduces the preamplifier gain by 15 dB. The variable functions of the P101 (volume and balance) are performed by microprocessor-controlled resistor-ladder attenuators. The volume and balance can be changed in either direction in steps of 1.5 dB by a momentary touch on the corresponding button. Holding in a button causes the stepping to continue at a rate of about 6 dB per second. Although the changes are in discrete steps, the audible effect is of a continuous level variation (the total volume-control range is 94.5 dB). A pair of numerical LED displays in the upper center of the panel shows the gains of the left and right channels, including the effect of any balance offset between the channels (which is maintained during overall volume changes), but does not register the effect of the gain circuit.The two pairs of phono-input jacks (for MM and MC cartridges) are gold plated for low contact resistance. The input termination of the MM input can be switched to 22,000, 47,000, or 100,000 ohms by a slide switch near the jacks, and the shunt capacitance can be set to 100, 200, or 400 picofarads by another similar switch. The SAE PI01 employs low-impedance circuits, including its RIAA phono-equalization feedback network, which is driven by a small power amplifier from the output of the phono-preamplifier stages. The combination of low-impedance circuits and the separate relays used for switching each channel gives the P101 exceptional isolation between inputs as well as between channels (typically 90 dB or better). PAYMENT INFO: PAY PAL PAYMENTS ARE PREFERRED. PAYMENT EXPECTED WITHIN 3 DAYS AFTER THE AUCTION HAS ENDED. SHIPPING: ITEM WILL BE SHIPPED WITHIN 24 HOURS OF PAYMENT CLEARING EXCEPT SATURDAY AND SUNDAY. YOU WILL KNOW YOUR TRACKING NUMBER AND ALL THE SHIPPING DETAILS. WE SHIP VIA FEDEX GROUND OR HOME DELIVERY. USPS OR UPS SERVICES ARE USED VERY RARELY. ALL PACKAGES ARE SHIPPED WITH INSURANCE AND SIGNATURE REQUIRED OPTION, IF THE ITEM VALUE IS LARGER THAN $100.00. IF YOU DONT WANT SIGNATURE REQUIRED OPTION, PLEASE NOTIFY US BEFORE WE SHIP THE ITEM. IN SOME RARE CASES, AND FOR INTERNATIONAL SHIPMENTS, WE WILL USE USPS. IN THE VERY RARE EVENT THAT AN ITEM ARRIVES NOT AS DESCRIBED IN OUR ADS, WE WILL RESOLVE THE ISSUE(S) WITH THE CUSTOMER TO THEIR SATISFACTION. IF SOMEHOW YOUR ITEM COMES DAMAGED, WHERE SHIPPING HAS CAUSED A PROBLEM EITHER FUNCTIONALLY OR COSMETICALLY, PLEASE CONTACT US AS SOON AS POSSIBLE FOR FURTHER INFO. ALL OUR ITEMS ARE INSURED. FREE SHIPPING IS FOR DOMESTIC STATES ONLY. INTERNATIONAL BUYERS NEED TO CONTACT ME BEFORE PURCHASING THE ITEM. FREE SHIPPING IS FOR 48 CONTINENTAL US COUNTRIES ONLY. OTHER COUNTRIES, PLEASE CONTACT US , SO WE CAN CALCULATE THE SHIPPING COST FOR YOUR COUNTRY. CUSTOMERS FROM ALASKA, HAWAII, PUERTO RICO AND GUAM NEED TO CONTACT US BEFORE PURCHASE, SO WE CAN CALCULATE THE SHIPPING COST FIRST.WE DO NOT SHIP TO PO BOXES.
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