https://www.soundimports.eu/en/raal-64-10.html was in use on a Salk Speaker. Selling the individual pieces.

Privatverkauf eines der besten Kopfhörer der Welt (www.musicalhead.de/fidelio) ein True Ribbon Technologie. Extrem schnell und luftig. Interface oder Ribbon-Verstärker erforderlich (wird nicht mitgeliefert). Beschreibung auf raalrequisite.com Neupreis ca. 2.500 € mit austauschbaren Original-Ohrmuscheln Originalverpackung

Privatverkauf eines der besten Kopfhörer der Welt (www.musicalhead.de/fidelio) ein True Ribbon Technologie. Extrem schnell und luftig. Interface oder Ribbon-Verstärker erforderlich (wird nicht mitgeliefert). Beschreibung auf raalrequisite.com Neupreis ca. 2.500 € mit austauschbaren Original-Ohrmuscheln Originalverpackung

RAAL HSA-1b Headphone/Speaker amp for any headphone type - even notoriously hard to drive ones from Susvarna, Audeze, HiFiMan and Dan Clark. This also plays traditional headphones; my Sennheiser HD800 never sounded better than through this amp! This is the Swiss Army Knife of headphone amplifiers. Sure, it was made to drive the amazing RAAL SR1a ear speakers in wonderful Class A mode, plus it has the ability to play virtually ANY headphone. Add the ability to drive efficient speakers in average size rooms. It puts out 10W into 8 Ohms and 20W into 4 Ohms. This is more than enough for speakers with 90dB or higher sensitivity. I drove my 8-Ohm 94dB Voxativ AC-1.6 full-range drivers with this amp and it could hit deafening levels in my listening room. It also provides a true balanced, fully-differential signal and has both XLR and RCA inputs. I ran both digital and analog in this amp, in addition to running my headphones. This can be the hub of your superb audio system. High quality sound and tons of flexibility in a single unit - and at a significant discount to retail price of $4,500. (Im only selling it because I recently converted to tube amplifiers.) I am the original owner, having purchased this unit directly from Danny McKinney at Requisite Audio. Ive given this light use over the past 14 months. Physical condition is essentially new. Continental USA sales only. Free shipping at my listed price. .

Hey everyone,For sale I have a beautiful pair of philharmonic BMR monitors, the V2 (newest) versions, as well as a philharmonic BMR center channel speaker. I would like to sell these as a set. Please do not contact me anyway and ask to buy only the two bookshelves and not the center - these are for sale as a set. They are in beautiful rosewood finish, and less than three months old. I purchased these from Dennis less than three months ago, and they have been well cared for, but recently got the chance to get some Revel Ultimas for too good of a price to pass up, so have to pass these on. I have all the original (double) boxes, packaging foam, tweeter protectors, grills, and these will be meticulously packed for shipment. These are in quite good condition but the impeccable finish is extremely difficult to keep pristine, and they have a few very light marks and swirl marks on them, only visible when looking for them and even then only in the right light. See pics for what I am talking about, circled in red.If you are looking at this ad you likely are already aware of what the philharmonics BMRs are, but if not, they are a 3 way, quite large bookshelf speaker if you can call it that, with excellent clarity , detail, deliver extremely low bass response, and have a astonishingly wide soundstage. They have a RAAL ribbon tweeter, and measure extremely flat all the way down to an astounding 36hz at +-2db. Despite being a small company, these are extremely well reviewed and won numerous awards, including some from Capital Audio Fest and Speakerfest. They are regarded as being one of the best value speakers in its class, and are regularly compared against speakers such as Revel costing more than 5 times their price. You can read more on-line if interested. The center channel features the same design, except with a rotated tweeter to better disperse the sound when positioned horizontally. I have added adhesive rubber feet for the center speaker, these can be removed if desired.Please feel free to reach out to me with any questions, I am extremely responsive and will get back to you as soon as possible. Due to the size and cost to transport these no returns will be accepted - please view pics and ask question prior to purchase to know exactly what you are getting. Thanks for your interest, I will insert below this specifications from the manufacturers web page :Tweeter RAAL 64-10X OEMMidrange Balanced Mode Radiator 2.5Woofer SB Acoustics 6 CeramicFrequency Response 36 Hz - 20kHz (+ / - 2db) AnechoicSensitivity 86.5 dB (2.83v/1M)Box Alignment Bass ReflexDimensions 20 H x 8 W x 12-1/2 DWeight 32 lbs each

RAAL HSA-1b Headphone Amplifier lightly used in superb condition. Original owner in non-smoking house. This amp can play both RAAL headphones and traditional non ribbon headphones too. Original price is $4500! Will double box for shipping.

I am selling a Schiit Audio Jotunheim R that is in great condition and works well with no issues. It will be shipped in the original shipping box with packaging, documentation, and power cord.

I am selling a Schiit Audio Jotunheim R that is in great condition and works well with no issues. It will be shipped in the original shipping box with packaging, documentation, and power cord.

RAAL-requisite TI-1a Amp Interface for True-Ribbon™ Headphones. In mint condition and barely used, getting no use as i now have a Raal amp, if your looking i am sure you know what this is/does. Opens up a new world of amps for Raal Headphones. Thanks for looking. Whats Included• TI-1a Metal Chasis Transformer Interface• OB Compensation barrels for Balanced XLR amplifier inputs• OB Compensation barrels for Single-Ended RCA amplifier inputs• ITI 4-pin XLR to 4-pin XLR Cable for connecting conventional headphone level amp output. DescriptionThe TI-1a provides access to a vast number of conventional headphone amplifiers for powering True-Ribbon headphones with as little as 2-Watts and depending on the amp and required volume, as little as 0.5-Watts of power.In addition to headphone amps, the TI-1a bridges the gap to include the use of conventional, high-powered, 2-channel amps and mono-blocks.The TI-1a, Ribbon/Amp InterfaceUntil now, devotees of True-Ribbon listening have had a limited range of options for driving the super low-impedance & high-current demands of their much loved True-Ribbon headphones.At last, Liberation!The TI-1a provides access to a vast number of conventional headphone amplifiers for powering True-Ribbon headphones with as little as 2-Watts and depending on the amp and required volume, as little as 0.5-Watts of power.In addition to headphone amps, the TI-1a bridges the gap to include the use of conventional, high-powered, 2-channel amps and mono-blocks.A quantum leap? Yes! But let’s rewind for a moment…True-Ribbon headphones are of very low resistance (impedance)_few tens of milli ohms. About 10 times less than a headphone cable. They require very low voltage and high current. A headphone amp is incapable of driving them because the ribbon + cable impedance is far lower than 32 Ohms and a conventional headphone amp will not produce the 4-5 Amps of current required.Originally, we developed a reliable solution requiring a 100W speaker amp with a network of resistors (in series) to the True-Ribbon headphone and thus, loading the amp with 6 Ohms. That method allows the amp to work in its normal load range and comfortably produce the necessary current True-Ribbons require.Enter Toroidal Impedance Matching Transformers!Transformers will convert AC signal of high-voltage/low-current into low-voltage/high-current, thusly, turning a high impedance into a low impedance (or vice versa) allowing for matching of mismatched sources and loads. This is a transformers typical duty in ribbon tweeters and tube amps, both of which we have tons of experience in designing and buildingSo then, what’s the Big Deal?Tweeters, however, have their transformers mounted very close to the ribbon itself so there is no significant loss due to wire length. Using that same method with headphones, you’d be wearing 2 lbs. of transformers on your head and visiting your chiropractor on a regular basis. Simply stated, not a practical solution!With tube amplifier output transformers, the speaker is far away, but the cable has a far lower resistance than the speaker, so again, no significant loss there. But, by that same logic, the headphone cable would have to weigh 2 lbs.With True-Ribbon headphones, the situation is completely backwards!Until the TI-1a, we could find no known example or solution in audio.There were no such examples of this upside down situation.So, we’ve had to develop our own solution…And… it had to work flawlessly.With headphones, a lightweight and very flexible cable is needed. This means a low cross section of the conductors, and in turn, that the cable functions as the dominant resistance/impedance in our headphone cable/ribbon driver circuit.The cable mostly loads the impedance matching transformer, not the ribbon. In such low impedance circuits, the cable must not have excessive inductance, or the highs will drop, far too soon. Also, it must have a certain resistance per unit of length such that when we load the transformer at the secondary with that cable, we get the desired 32 or 16 Ohms at the primary. Our development brought us to the new SC2 (6ft) Standard Cable, included with the TI-1a.The transformers themselves must have very low leakage inductance, or again, in these very low impedance circuits, the highs will be dropping too early. They must also have low capacitance, to prevent ringing in the ultrasonic range. This may potentially pose a serious problem for amplifiers and we have found that the best way to solve that is using toroidal transformers with windings made in a particular way… plus, a few additional components. These added parts won’t affect the sound, they just ensure that there are no reactive loads to create over voltage peaks that may damage the amplifier.Persistence Pays OffThe development took a while longer than we hoped for, but in the end, we now have a transformer based, amp to ribbon, interface with 32 and 16 Ohm inputs, with less than -100dB distortion, that can transfer 6 Watts of power, exhibits no ringing, goes far into the ultrasonic, is safe to plug-in and out of a fully cranked amp, safe to drive with headphones unplugged and grounds the static electricity of the headphones. Simply put… pure and safe transformation of any level in sound refinement of your headphone amp, into a high current, ribbon driving monster at the other end of the TI-1a!Rarely Leave Class AWith the TI-1a, you can also use normal speaker amplifiers, in a vast range of power. From SET’s with a few Watts to whatever 100 lbs. of solid-state you have. The good thing about loading large power amps with 32 Ohms is that they will rarely leave Class A operation, even if they are Class B with forward bias, as the bias current alone is almost all the current you will need to swing lots of SPL at the headphones, so you can expect significant improvements in sound refinement of your speaker amp, with considerably less “crossover“ distortion artifacts.Open-Baffle CompensationFor driving Open-Baffle SR1 headphones, we have provided left/right OB Compensation adapters in XLR (balanced) & RCA (Single-Ended) variants. Just plug them into either of your amps inputs (XLRs or RCAs) and plug your interconnect cable into the OB Compensation barrel. That way, whenever you select that input, you will correctly drive your SR1 True-Ribbon headphones.Our General RecommendationOur general recommendation is a conventional headphone amp having from 2 to 6 Watts at 32 Ohms, but we’ve been pleasantly surprised with amps as low as 0.5 Watts when the sound is right. Of course, if your listening requires high dynamic range or you like it loud, choose something closer to 6 Watts than 2 Watts.A quantum leap, indeed!The TI-1a is a significant development in True-Ribbon headphone technology. It’s not a copy, not a trick. This is a proper engineering that most successfully solves the compatibility challenges of True-Ribbon headphones when using conventional headphone amps.

Ich verkaufe schweren Herzens meinen Raal SR-1a, den vielleicht besten Kopfhörer, den es im Moment am Markt gibt, da ich - Kinder, Arbeit etc. - einfach viel zu selten dazu komme, ihn zu benutzen. Der Kopfhörer wurde am 1.12.2021 bei Requisite Audio gekauft. Der Zustand ist einwandfrei.Teil des Angebots ist ein tolles extra angefertigtes Silberkabel, das zu einem noch detailreicheren Klang führt. Zusammen eine Wahnsinnskombination.Weiterer Teil des Angebots ist als Verstärker der sehr gute Jotunheim R (gekauft im August 2022). Aufgrund der im Kopfhörer verwendeten True-Ribbon-Technologie muss der Kopfhörer mit einem speziellen Verstärker betrieben werden. Der Jotunheim R erfüllt diese Funktion und kann nicht mit anderen Kopfhörern betrieben werden. Eine kompetente Besprechung des Kopfhörers und des Verstärkers findet sich, wenn man auf google nach raal SR-1a jotunheim r audiophilestyle sucht.Am liebsten wäre mir eine Abholung vor Ort (Petersberg bei Fulda), wo die Kopfhörer auch gerne getestet werden können. Sonst Bezahlung per PayPal oder per Überweisung.Der Verkauf erfolgt unter Ausschluss jeglicher Gewährleistung. Der Ausschluss gilt nicht für Schadenersatzansprüche aus grob fahrlässiger bzw. vorsätzlicher Verletzung von Pflichten des Verkäufers sowie für jede Verletzung von Leben, Körper und Gesundheit.

RAAL-requisite TI-1a Amp Interface for True-Ribbon™ Headphones. In mint condition and barely used, getting no use as i now have a Raal amp, if your looking i am sure you know what this is/does. Opens up a new world of amps for Raal Headphones. Thanks for looking. Whats Included• TI-1a Metal Chasis Transformer Interface• OB Compensation barrels for Balanced XLR amplifier inputs• OB Compensation barrels for Single-Ended RCA amplifier inputs• ITI 4-pin XLR to 4-pin XLR Cable for connecting conventional headphone level amp output. DescriptionThe TI-1a provides access to a vast number of conventional headphone amplifiers for powering True-Ribbon headphones with as little as 2-Watts and depending on the amp and required volume, as little as 0.5-Watts of power.In addition to headphone amps, the TI-1a bridges the gap to include the use of conventional, high-powered, 2-channel amps and mono-blocks.The TI-1a, Ribbon/Amp InterfaceUntil now, devotees of True-Ribbon listening have had a limited range of options for driving the super low-impedance & high-current demands of their much loved True-Ribbon headphones.At last, Liberation!The TI-1a provides access to a vast number of conventional headphone amplifiers for powering True-Ribbon headphones with as little as 2-Watts and depending on the amp and required volume, as little as 0.5-Watts of power.In addition to headphone amps, the TI-1a bridges the gap to include the use of conventional, high-powered, 2-channel amps and mono-blocks.A quantum leap? Yes! But let’s rewind for a moment…True-Ribbon headphones are of very low resistance (impedance)_few tens of milli ohms. About 10 times less than a headphone cable. They require very low voltage and high current. A headphone amp is incapable of driving them because the ribbon + cable impedance is far lower than 32 Ohms and a conventional headphone amp will not produce the 4-5 Amps of current required.Originally, we developed a reliable solution requiring a 100W speaker amp with a network of resistors (in series) to the True-Ribbon headphone and thus, loading the amp with 6 Ohms. That method allows the amp to work in its normal load range and comfortably produce the necessary current True-Ribbons require.Enter Toroidal Impedance Matching Transformers!Transformers will convert AC signal of high-voltage/low-current into low-voltage/high-current, thusly, turning a high impedance into a low impedance (or vice versa) allowing for matching of mismatched sources and loads. This is a transformers typical duty in ribbon tweeters and tube amps, both of which we have tons of experience in designing and buildingSo then, what’s the Big Deal?Tweeters, however, have their transformers mounted very close to the ribbon itself so there is no significant loss due to wire length. Using that same method with headphones, you’d be wearing 2 lbs. of transformers on your head and visiting your chiropractor on a regular basis. Simply stated, not a practical solution!With tube amplifier output transformers, the speaker is far away, but the cable has a far lower resistance than the speaker, so again, no significant loss there. But, by that same logic, the headphone cable would have to weigh 2 lbs.With True-Ribbon headphones, the situation is completely backwards!Until the TI-1a, we could find no known example or solution in audio.There were no such examples of this upside down situation.So, we’ve had to develop our own solution…And… it had to work flawlessly.With headphones, a lightweight and very flexible cable is needed. This means a low cross section of the conductors, and in turn, that the cable functions as the dominant resistance/impedance in our headphone cable/ribbon driver circuit.The cable mostly loads the impedance matching transformer, not the ribbon. In such low impedance circuits, the cable must not have excessive inductance, or the highs will drop, far too soon. Also, it must have a certain resistance per unit of length such that when we load the transformer at the secondary with that cable, we get the desired 32 or 16 Ohms at the primary. Our development brought us to the new SC2 (6ft) Standard Cable, included with the TI-1a.The transformers themselves must have very low leakage inductance, or again, in these very low impedance circuits, the highs will be dropping too early. They must also have low capacitance, to prevent ringing in the ultrasonic range. This may potentially pose a serious problem for amplifiers and we have found that the best way to solve that is using toroidal transformers with windings made in a particular way… plus, a few additional components. These added parts won’t affect the sound, they just ensure that there are no reactive loads to create over voltage peaks that may damage the amplifier.Persistence Pays OffThe development took a while longer than we hoped for, but in the end, we now have a transformer based, amp to ribbon, interface with 32 and 16 Ohm inputs, with less than -100dB distortion, that can transfer 6 Watts of power, exhibits no ringing, goes far into the ultrasonic, is safe to plug-in and out of a fully cranked amp, safe to drive with headphones unplugged and grounds the static electricity of the headphones. Simply put… pure and safe transformation of any level in sound refinement of your headphone amp, into a high current, ribbon driving monster at the other end of the TI-1a!Rarely Leave Class AWith the TI-1a, you can also use normal speaker amplifiers, in a vast range of power. From SET’s with a few Watts to whatever 100 lbs. of solid-state you have. The good thing about loading large power amps with 32 Ohms is that they will rarely leave Class A operation, even if they are Class B with forward bias, as the bias current alone is almost all the current you will need to swing lots of SPL at the headphones, so you can expect significant improvements in sound refinement of your speaker amp, with considerably less “crossover“ distortion artifacts.Open-Baffle CompensationFor driving Open-Baffle SR1 headphones, we have provided left/right OB Compensation adapters in XLR (balanced) & RCA (Single-Ended) variants. Just plug them into either of your amps inputs (XLRs or RCAs) and plug your interconnect cable into the OB Compensation barrel. That way, whenever you select that input, you will correctly drive your SR1 True-Ribbon headphones.Our General RecommendationOur general recommendation is a conventional headphone amp having from 2 to 6 Watts at 32 Ohms, but we’ve been pleasantly surprised with amps as low as 0.5 Watts when the sound is right. Of course, if your listening requires high dynamic range or you like it loud, choose something closer to 6 Watts than 2 Watts.A quantum leap, indeed!The TI-1a is a significant development in True-Ribbon headphone technology. It’s not a copy, not a trick. This is a proper engineering that most successfully solves the compatibility challenges of True-Ribbon headphones when using conventional headphone amps.

RAAL-requisite TI-1a Amp Interface for True-Ribbon™ Headphones. In mint condition and barely used, getting no use as i now have a Raal amp, if your looking i am sure you know what this is/does. Opens up a new world of amps for Raal Headphones. Thanks for looking. Whats Included• TI-1a Metal Chasis Transformer Interface• OB Compensation barrels for Balanced XLR amplifier inputs• OB Compensation barrels for Single-Ended RCA amplifier inputs• ITI 4-pin XLR to 4-pin XLR Cable for connecting conventional headphone level amp output. DescriptionThe TI-1a provides access to a vast number of conventional headphone amplifiers for powering True-Ribbon headphones with as little as 2-Watts and depending on the amp and required volume, as little as 0.5-Watts of power.In addition to headphone amps, the TI-1a bridges the gap to include the use of conventional, high-powered, 2-channel amps and mono-blocks.The TI-1a, Ribbon/Amp InterfaceUntil now, devotees of True-Ribbon listening have had a limited range of options for driving the super low-impedance & high-current demands of their much loved True-Ribbon headphones.At last, Liberation!The TI-1a provides access to a vast number of conventional headphone amplifiers for powering True-Ribbon headphones with as little as 2-Watts and depending on the amp and required volume, as little as 0.5-Watts of power.In addition to headphone amps, the TI-1a bridges the gap to include the use of conventional, high-powered, 2-channel amps and mono-blocks.A quantum leap? Yes! But let’s rewind for a moment…True-Ribbon headphones are of very low resistance (impedance)_few tens of milli ohms. About 10 times less than a headphone cable. They require very low voltage and high current. A headphone amp is incapable of driving them because the ribbon + cable impedance is far lower than 32 Ohms and a conventional headphone amp will not produce the 4-5 Amps of current required.Originally, we developed a reliable solution requiring a 100W speaker amp with a network of resistors (in series) to the True-Ribbon headphone and thus, loading the amp with 6 Ohms. That method allows the amp to work in its normal load range and comfortably produce the necessary current True-Ribbons require.Enter Toroidal Impedance Matching Transformers!Transformers will convert AC signal of high-voltage/low-current into low-voltage/high-current, thusly, turning a high impedance into a low impedance (or vice versa) allowing for matching of mismatched sources and loads. This is a transformers typical duty in ribbon tweeters and tube amps, both of which we have tons of experience in designing and buildingSo then, what’s the Big Deal?Tweeters, however, have their transformers mounted very close to the ribbon itself so there is no significant loss due to wire length. Using that same method with headphones, you’d be wearing 2 lbs. of transformers on your head and visiting your chiropractor on a regular basis. Simply stated, not a practical solution!With tube amplifier output transformers, the speaker is far away, but the cable has a far lower resistance than the speaker, so again, no significant loss there. But, by that same logic, the headphone cable would have to weigh 2 lbs.With True-Ribbon headphones, the situation is completely backwards!Until the TI-1a, we could find no known example or solution in audio.There were no such examples of this upside down situation.So, we’ve had to develop our own solution…And… it had to work flawlessly.With headphones, a lightweight and very flexible cable is needed. This means a low cross section of the conductors, and in turn, that the cable functions as the dominant resistance/impedance in our headphone cable/ribbon driver circuit.The cable mostly loads the impedance matching transformer, not the ribbon. In such low impedance circuits, the cable must not have excessive inductance, or the highs will drop, far too soon. Also, it must have a certain resistance per unit of length such that when we load the transformer at the secondary with that cable, we get the desired 32 or 16 Ohms at the primary. Our development brought us to the new SC2 (6ft) Standard Cable, included with the TI-1a.The transformers themselves must have very low leakage inductance, or again, in these very low impedance circuits, the highs will be dropping too early. They must also have low capacitance, to prevent ringing in the ultrasonic range. This may potentially pose a serious problem for amplifiers and we have found that the best way to solve that is using toroidal transformers with windings made in a particular way… plus, a few additional components. These added parts won’t affect the sound, they just ensure that there are no reactive loads to create over voltage peaks that may damage the amplifier.Persistence Pays OffThe development took a while longer than we hoped for, but in the end, we now have a transformer based, amp to ribbon, interface with 32 and 16 Ohm inputs, with less than -100dB distortion, that can transfer 6 Watts of power, exhibits no ringing, goes far into the ultrasonic, is safe to plug-in and out of a fully cranked amp, safe to drive with headphones unplugged and grounds the static electricity of the headphones. Simply put… pure and safe transformation of any level in sound refinement of your headphone amp, into a high current, ribbon driving monster at the other end of the TI-1a!Rarely Leave Class AWith the TI-1a, you can also use normal speaker amplifiers, in a vast range of power. From SET’s with a few Watts to whatever 100 lbs. of solid-state you have. The good thing about loading large power amps with 32 Ohms is that they will rarely leave Class A operation, even if they are Class B with forward bias, as the bias current alone is almost all the current you will need to swing lots of SPL at the headphones, so you can expect significant improvements in sound refinement of your speaker amp, with considerably less “crossover“ distortion artifacts.Open-Baffle CompensationFor driving Open-Baffle SR1 headphones, we have provided left/right OB Compensation adapters in XLR (balanced) & RCA (Single-Ended) variants. Just plug them into either of your amps inputs (XLRs or RCAs) and plug your interconnect cable into the OB Compensation barrel. That way, whenever you select that input, you will correctly drive your SR1 True-Ribbon headphones.Our General RecommendationOur general recommendation is a conventional headphone amp having from 2 to 6 Watts at 32 Ohms, but we’ve been pleasantly surprised with amps as low as 0.5 Watts when the sound is right. Of course, if your listening requires high dynamic range or you like it loud, choose something closer to 6 Watts than 2 Watts.A quantum leap, indeed!The TI-1a is a significant development in True-Ribbon headphone technology. It’s not a copy, not a trick. This is a proper engineering that most successfully solves the compatibility challenges of True-Ribbon headphones when using conventional headphone amps.