Drop + THX Achromatic Audio Amplifier (THX AAA™) 789 is a linear bipolar amplifier with feed-forward error correction. Balanced output. Monoprice gold-plated XLR to 1/4 included. Its used but in perfect condition.

Drop THX AAA 789 headphone amplifier: Hard to Find/Class Leading Amp/LightlyUsed. General InformationThe Drop + THX Achromatic Audio Amplifier (THX AAA™) 789 is a linear bipolar amplifier with feed-forward error correction. It’s designed for objectivists who appreciate an incredibly clean, transparent amp—the sought-after “wire with gain” whose amplification is wholly uncolored by a sound of its own. Made in collaboration with THX Ltd., it features the company’s groundbreaking THX AAA and feed-forward topology, which reduce distortion by 20 to 40 dB for realistic, fatigue-free listening. In fact, this bridged-output amp’s performance figures speak for themselves: It’s powerful (2 x 6W at 32 ohms) and quiet (136 dB SNR) with a record-low THD of -140 dB at 300 ohms, 100 mW. That’s four times the power of the Objective 2 amp, for example, with far less distortion.Capable of driving any headphones, including high-impedance, high-current, and high-sensitivity types, the THX AAA 789 amp transmits the original audio in its purest possible form. That’s thanks in large part to THX AAA technology, which reduces harmonic, intermodulation, and crossover distortions. Virtually every conventional amplifier distorts significantly when driving current into a headphone, producing crossover distortion that fatigues the listener. The engineers at THX set out to solve this problem—and to deliver the performance of a class-A amplifier without the heat and weight—and THX AAA technology was born. To learn more about Laurie Fincham, the chief scientist behind THX AAA, check out this interview on Home Theater Geeks.Each channel of the THX AAA 789 amp is equipped with a low-bias class-AB main amplifier and an auxiliary error-correction amplifier, the former providing the majority of the power and the latter providing a realtime low-power error-correction signal. These work together to null all distortion components. Additionally, the product’s low quiescent current minimizes wasted power. Finally, the THX AAA 789 has multiple gain level settings to optimize for headphone and earphone listening. SpecificationsGeneralAll parameters measured at 0 dB gain, 1 kHz, with balanced inputs and 300-ohm load unless otherwise notedInputs: Stereo XLR-3 gold-plated Neutrik; Stereo RCA gold-platedOutputs: 1/4 in (6.35 mm) TRS gold-plated Neutrik; 3.5 mm TRS gold-plated; XLR-4 balanced gold-platedFrequency response: + 0.01 dB / - 0.03 dB 20 Hz–20 kHz; + 0.05 dB / - 0.15 dB 10 Hz–50 kHzInput impedance: 50 kOhms balanced or unbalancedChassis: High-grade CNC-milled aluminum with bead-blasted finishPower supply: 24 VDC inline brick, universal input 100–240 VACDimensions: 8.3 x 9.1 x 2.2 in (210 x 230 x 57 mm)Weight: 3.4 lbs (1,520 g)Balanced OutputOutput power: 6000 mW, 16 ohms, <1% THD (watts per channel)Output power: 6000 mW, 32 ohms, <1% THD (watts per channel)Output power: 800 mW, 300 ohms, <1% THD (watts per channel)Output power: 400 mW, 600 ohms, <1% THD (watts per channel)THD: -143 dB, 300 ohms, 1 mW: 0.000007%THD: -140 dB, 300 ohms, 100 mW: 0.000010%THD: -130 dB, 32 ohms, 1 mW: 0.000032%THD: -130 dB, 32 ohms, 100 mW: 0.000032%THD: -122 dB, 16 ohms, 1 mW: 0.000080%THD: -122 dB, 16 ohms, 100 mW: 0.000080%IMD: -123 dB, SMPTE 70 Hz + 70 kHz, 300 ohms: 0.000071%IMD: -124 dB, DFD 18 kHz + 19 kHz, 300 ohms: 0.000063%Crosstalk: -127 dB, 300 ohms: 0.000045%Noise (A-wt): 2.4 uV, potentiometer at nilSNR: 136 dB, 300 ohms, <1% THDGain: 0.66x , 2.0x, 6.6x (-4, +6, +16 dB), selectable via front switchOutput impedance: < 0.1 ohmsSingle-Ended OutputOutput power: 3000 mW, 16 ohms, <1% THD (watts per channel)Output power: 1800 mW, 32 ohms, <1% THD (watts per channel)Output power: 200 mW, 300 ohms, <1% THD (watts per channel)Output power: 100 mW, 600 ohms, <1% THD (watts per channel)THD: -143 dB, 300 ohms, 1 mW: 0.000007%THD: -135 dB, 300 ohms, 100 mW: 0.000018%THD: -135 dB, 32 ohms, 1 mW: 0.000018%THD: -133 dB, 32 ohms, 100 mW: 0.000022%THD: -130 dB, 16 ohms, 1 mW: 0.000032%THD: -125 dB, 16 ohms, 100 mW: 0.000056%IMD: -117 dB, SMPTE 70 Hz + 70 kHz, 300 ohms: 0.000141%IMD: -125 dB, DFD 18 kHz + 19 kHz, 300 ohms: 0.000056%Crosstalk: -90 dB, 300 ohms: 0.003162%Noise (A-wt): 1.2 uV, potentiometer at nilSNR: 136 dB, 300 ohms, <1% THDGain: 0.33x , 1.0x, 3.3x (-10, 0, +10 dB), selectable via front switchOutput impedance: < 0.05 ohms

Massdrop + THX AAA 789 Linear Headphone Amplifier Stereo Amp- **PRE-OWNED**.

This looks like it’s in great shape. The power push button sticks on and off. Takes a bunch of pushing to get it to stay on or to get it off. Selling as parts or repair Thanks for looking

used. works well. Announced at CES 2018, the Drop + THX Achromatic Audio Amplifier (THX AAA™) 789 is a linear bipolar amplifier with feed-forward error correction. It’s designed for objectivists who appreciate an incredibly clean, transparent amp—the sought-after “wire with gain” whose amplification is wholly uncolored by a sound of its own. Made in collaboration with THX Ltd., it features the company’s groundbreaking THX AAA and feed-forward topology, which reduce distortion by 20 to 40 dB for realistic, fatigue-free listening. In fact, this bridged-output amp’s performance figures speak for themselves: It’s powerful (2 x 6W at 32 ohms) and quiet (136 dB SNR) with a record-low THD of -140 dB at 300 ohms, 100 mW. That’s four times the power of the Objective 2 amp, for example, with far less distortion. Capable of driving any headphones, including high-impedance, high-current, and high-sensitivity types, the THX AAA 789 amp transmits the original audio in its purest possible form. That’s thanks in large part to THX AAA technology, which reduces harmonic, intermodulation, and crossover distortions. Virtually every conventional amplifier distorts significantly when driving current into a headphone, producing crossover distortion that fatigues the listener. The engineers at THX set out to solve this problem—and to deliver the performance of a class-A amplifier without the heat and weight—and THX AAA technology was born. To learn more about Laurie Fincham, the chief scientist behind THX AAA, check out this interview on Home Theater Geeks. Each channel of the THX AAA 789 amp is equipped with a low-bias class-AB main amplifier and an auxiliary error-correction amplifier, the former providing the majority of the power and the latter providing a realtime low-power error-correction signal. These work together to null all distortion components. Additionally, the product’s low quiescent current minimizes wasted power. Finally, the THX AAA 789 has multiple gain level settings to optimize for headphone and earphone listening.

DROP + THX AAA™ 789 LINEAR AMPLIFIER This is one of the most transparent, neutral, clear, detailed and best measuring audiophile headphone amplifier available. It uses quality Neutrik XLR connections, has a high-grade CNC-milled aluminum chassis, and fantastic measurements and specifications. This one is open box, like new, with all original contents and packaging. Functionality was verified and it was then repacked. All sales final. I am a long-time eBay seller with well over 550+ perfect 100% feedback ratings, so purchase with confidence! Currently retails for $359.96 on Amazon. FREE SHIPPING via FedEx Home/Ground Delivery with Delivery Confirmation and Tracking. MORE INFORMATION The Drop + THX Achromatic Audio Amplifier (THX AAA™) 789 is a linear bipolar amplifier with feed-forward error correction. It’s designed for objectivists who appreciate an incredibly clean, transparent amp—the sought-after “wire with gain” whose amplification is wholly uncolored by a sound of its own. Made in collaboration with THX Ltd., it features the company’s groundbreaking THX AAA and feed-forward topology, which reduce distortion by 20 to 40 dB for realistic, fatigue-free listening. In fact, this bridged-output amp’s performance figures speak for themselves: It’s powerful (2 x 6W at 32 ohms) and quiet (136 dB SNR) with a record-low THD of -140 dB at 300 ohms, 100 mW. That’s four times the power of the Objective 2 amp, for example, with far less distortion. Capable of driving any headphones, including high-impedance, high-current, and high-sensitivity types, the THX AAA 789 amp transmits the original audio in its purest possible form. That’s thanks in large part to THX AAA technology, which reduces harmonic, intermodulation, and crossover distortions. Virtually every conventional amplifier distorts significantly when driving current into a headphone, producing crossover distortion that fatigues the listener. The engineers at THX set out to solve this problem—and to deliver the performance of a class-A amplifier without the heat and weight—and THX AAA technology was born. To learn more about Laurie Fincham, the chief scientist behind THX AAA. Each channel of the THX AAA 789 amp is equipped with a low-bias class-AB main amplifier and an auxiliary error-correction amplifier, the former providing the majority of the power and the latter providing a realtime low-power error-correction signal. These work together to null all distortion components. Additionally, the product’s low quiescent current minimizes wasted power. Finally, the THX AAA 789 has multiple gain level settings to optimize for headphone and earphone listening. Founded by legendary filmmaker George Lucas in 1983, THX Ltd. and its partners provide premium entertainment experiences in the cinema, in the home, and on the go. Over the past 30 years, THX has expanded its certification categories beyond studios and cinemas to consumer electronics, content, and automotive systems. Today, THX continues to redefine entertainment, providing exciting new technologies and assurance of experiences with superior quality and high performance that guarantee the artists vision is truthfully delivered to audiences worldwide. Fun fact: Composed by Lucasfilm sound engineer Dr. James “Andy” Moorer and screened at the start of the 1983 premiere of Star Wars: Episode VI - Return of the Jedi, THX Deep Note remains one of the most recognizable sonic identities to this day. SPECSGeneralAll parameters measured at 0 dB gain, 1 kHz, with balanced inputs and 300-ohm load unless otherwise notedInputs: Stereo XLR-3 gold-plated Neutrik; Stereo RCA gold-platedOutputs: 1/4 in (6.35 mm) TRS gold-plated Neutrik; 3.5 mm TRS gold-plated; XLR-4 balanced gold-platedFrequency response: + 0.01 dB / - 0.03 dB 20 Hz–20 kHz; + 0.05 dB / - 0.15 dB 10 Hz–50 kHzInput impedance: 50 kOhms balanced or unbalancedChassis: High-grade CNC-milled aluminum with bead-blasted finishPower supply: 24 VDC inline brick, universal input 100–240 VACDimensions: 8.3 x 9.1 x 2.2 in (210 x 230 x 57 mm)Weight: 3.4 lbs (1,520 g)Balanced OutputOutput power: 6000 mW, 16 ohms, <1% THD (watts per channel)Output power: 6000 mW, 32 ohms, <1% THD (watts per channel)Output power: 800 mW, 300 ohms, <1% THD (watts per channel)Output power: 400 mW, 600 ohms, <1% THD (watts per channel)THD: -143 dB, 300 ohms, 1 mW: 0.000007%THD: -140 dB, 300 ohms, 100 mW: 0.000010%THD: -130 dB, 32 ohms, 1 mW: 0.000032%THD: -130 dB, 32 ohms, 100 mW: 0.000032%THD: -122 dB, 16 ohms, 1 mW: 0.000080%THD: -122 dB, 16 ohms, 100 mW: 0.000080%IMD: -123 dB, SMPTE 70 Hz + 70 kHz, 300 ohms: 0.000071%IMD: -124 dB, DFD 18 kHz + 19 kHz, 300 ohms: 0.000063%Crosstalk: -127 dB, 300 ohms: 0.000045%Noise (A-wt): 2.4 uV, potentiometer at nilSNR: 136 dB, 300 ohms, <1% THDGain: 0.66x , 2.0x, 6.6x (-4, +6, +16 dB), selectable via front switchOutput impedance: < 0.1 ohmsSingle-Ended OutputOutput power: 3000 mW, 16 ohms, <1% THD (watts per channel)Output power: 1800 mW, 32 ohms, <1% THD (watts per channel)Output power: 200 mW, 300 ohms, <1% THD (watts per channel)Output power: 100 mW, 600 ohms, <1% THD (watts per channel)THD: -143 dB, 300 ohms, 1 mW: 0.000007%THD: -135 dB, 300 ohms, 100 mW: 0.000018%THD: -135 dB, 32 ohms, 1 mW: 0.000018%THD: -133 dB, 32 ohms, 100 mW: 0.000022%THD: -130 dB, 16 ohms, 1 mW: 0.000032%THD: -125 dB, 16 ohms, 100 mW: 0.000056%IMD: -117 dB, SMPTE 70 Hz + 70 kHz, 300 ohms: 0.000141%IMD: -125 dB, DFD 18 kHz + 19 kHz, 300 ohms: 0.000056%Crosstalk: -90 dB, 300 ohms: 0.003162%Noise (A-wt): 1.2 uV, potentiometer at nilSNR: 136 dB, 300 ohms, <1% THDGain: 0.33x , 1.0x, 3.3x (-10, 0, +10 dB), selectable via front switchOutput impedance: < 0.05 ohmsINCLUDEDDROP + THX AAA™ 789 LINEAR AMPLIFIERSwitching power supply that handles 100–240 VAC (US plug)

Available is a Drop + THX AAA 789 Balanced Linear Headphone Desktop Amplifier. The amp is used, tested/working and in very good overall condition. Please review all pictures for complete physical details. INCLUDES: items pictured **FAST AND PROFESSIONAL SHIPPING** Please feel feee to let me know if you have any questions.

Drop + THX AAA One Linear Amplifier + Preamp — MDX-34708-1 Used in great condition. Comes with original box and power adapter (US plug).

Lightly used for very brief period of time but excellent condition. Works perfect.

Massdrop + THX AAA 789 Linear Headphone Amplifier, and upgraded iPower Low-Noise DC Power Adapter. This headphone amp made waves when it was released, as it was one of the best if not the best low-noise amplifiers on the market for the price. The amp uses fully separated channel circuitry, giving it very low crosstalk; and the included iPower DC adapter helps keep the noise even lower, to the point that the unbalanced output has the clarity and noise floor of a fully balanced amp. The amp also has balanced XLR output with higher power output with the same excellent low-noise performance as with the unbalanced 3.5mm and 1/4 headphone outputs. For inputs, the 789 has two pairs of RCA stereo inputs and stereo XLR for balanced input. Finally, there is a three stage gain switch that increases noise but also increases power output. Here is a full breakdown on the amps features, statistics, and power: https://www.audiosciencereview.com/forum/index.php?threads/review-and-measurements-of-massdrop-thx-aaa-789-amp.5001/ This is one of the original revision A models with a serial number of 03616 from March 2018, retaining the original Massdrop branding. It has not been run very hot, and has been kept on low gain and never went past half volume. Please note this listing does not include the original RCA cables included from the manufacturer. Includes an XLR to dual 3.5mm balanced cable, and 3.5mm to dual 3.5mm cable. These cables can be used for headphones with two 3.5mm connects in each cup, such as from HIFIMAN or other brands. As they are no longer needed, they are included with the amp. Please see pictures as they are part of the description & are of the actual item(s) you will receive. From a climate controlled, smoke & pet free environment. Extra insurance will be added for protection during transport as well as will be sent in an outer box to protect original box & contents. All Items(s) are in hand & will be shipped as soon as payment is received. Thanks for visiting & supporting a family with differently-abled members ? Happy Shopping!

Drop THX AAA 789 Headphone Amp Pre-owned Condition: Excellent FREE SHIPPING Price: $225 Technical specs: https://drop.com/buy/drop-thx-aaa-789-linear-amplifier/details#details Reviews: https://www.youtube.com/watch?v=MIAPJ_1Ruys&t=1377shttps://www.youtube.com/watch?v=HobudSBzZ8whttps://www.youtube.com/watch?v=qV8hgxQrJiw&t=489s

Drop Plus THX AAA 789 Linear Amplifier good condition.

Drop THX AAA One Headphones Amplifier. In great condition. No box. Less then a year old.

Drop THX AAA ONE Amplifier Works Perfect - Fast Ship In Great Condition..

Massdrop + THX AAA 789 Linear Headphone Amplifier Stereo Amp- **PRE-OWNED**.

Im selling Drop + THX AAA™ 789 Linear Amplifier. Its in great working condition. Specs General All parameters measured at 0 dB gain, 1 kHz, with balanced inputs and 300-ohm load unless otherwise notedInputs: Stereo XLR-3 gold-plated Neutrik; Stereo RCA gold-platedOutputs: 1/4 in (6.35 mm) TRS gold-plated Neutrik; 3.5 mm TRS gold-plated; XLR-4 balanced gold-platedFrequency response: + 0.01 dB / - 0.03 dB 20 Hz–20 kHz; + 0.05 dB / - 0.15 dB 10 Hz–50 kHzInput impedance: 50 kOhms balanced or unbalancedChassis: High-grade CNC-milled aluminum with bead-blasted finishPower supply: 24 VDC inline brick, universal input 100–240 VACDimensions: 8.3 x 9.1 x 2.2 in (210 x 230 x 57 mm)Weight: 3.4 lbs (1,520 g) Balanced Output Output power: 6000 mW, 16 ohms, <1% THD (watts per channel)Output power: 6000 mW, 32 ohms, <1% THD (watts per channel)Output power: 800 mW, 300 ohms, <1% THD (watts per channel)Output power: 400 mW, 600 ohms, <1% THD (watts per channel)THD: -143 dB, 300 ohms, 1 mW: 0.000007%THD: -140 dB, 300 ohms, 100 mW: 0.000010%THD: -130 dB, 32 ohms, 1 mW: 0.000032%THD: -130 dB, 32 ohms, 100 mW: 0.000032%THD: -122 dB, 16 ohms, 1 mW: 0.000080%THD: -122 dB, 16 ohms, 100 mW: 0.000080%IMD: -123 dB, SMPTE 70 Hz + 70 kHz, 300 ohms: 0.000071%IMD: -124 dB, DFD 18 kHz + 19 kHz, 300 ohms: 0.000063%Crosstalk: -127 dB, 300 ohms: 0.000045%Noise (A-wt): 2.4 uV, potentiometer at nilSNR: 136 dB, 300 ohms, <1% THDGain: 0.66x , 2.0x, 6.6x (-4, +6, +16 dB), selectable via front switchOutput impedance: < 0.1 ohms Single-Ended Output Output power: 3000 mW, 16 ohms, <1% THD (watts per channel)Output power: 1800 mW, 32 ohms, <1% THD (watts per channel)Output power: 200 mW, 300 ohms, <1% THD (watts per channel)Output power: 100 mW, 600 ohms, <1% THD (watts per channel)THD: -143 dB, 300 ohms, 1 mW: 0.000007%THD: -135 dB, 300 ohms, 100 mW: 0.000018%THD: -135 dB, 32 ohms, 1 mW: 0.000018%THD: -133 dB, 32 ohms, 100 mW: 0.000022%THD: -130 dB, 16 ohms, 1 mW: 0.000032%THD: -125 dB, 16 ohms, 100 mW: 0.000056%IMD: -117 dB, SMPTE 70 Hz + 70 kHz, 300 ohms: 0.000141%IMD: -125 dB, DFD 18 kHz + 19 kHz, 300 ohms: 0.000056%Crosstalk: -90 dB, 300 ohms: 0.003162%Noise (A-wt): 1.2 uV, potentiometer at nilSNR: 136 dB, 300 ohms, <1% THDGain: 0.33x , 1.0x, 3.3x (-10, 0, +10 dB), selectable via front switchOutput impedance: < 0.05 ohms

Drop THX AAA ONE Amplifier Works Perfect - Fast Ship In Great Condition..

Massdrop + THX AAA 789 Linear Headphone Amplifier Stereo Amp- **PRE-OWNED**.

Ich verkaufe hier meinen DROP THX AAA 789 Kopfhörerverstärker. Der Verstärker befindet sich in ausgezeichnetem Zustand und wurde sorgfältig gepflegt. Geliefert werden: - Drop THX AAA 789 - Netzteil Technische Daten: - THX AAA zertifizierter Verstärker - Ausgangsleistung: 2 x 6 Watt bei 32 Ohm - Unterstützte Kopfhörerimpedanz: 8 bis 600 Ohm - Anschlüsse: XLR, RCA Bitte beachten Sie, dass es sich bei dieser Auktion um eine private Verkaufsveranstaltung handelt. Als Privatverkäufer übernehme ich keine Gewährleistung oder Garantie für den angebotenen Artikel. Der Verkauf erfolgt daher unter Ausschluss jeglicher Gewährleistung gemäß § 444 BGB.

Wonderful sounding headphone amp was part of my best system. upgraded with pangea premier XLRs to use amp in balanced mode ( $200 VALUE). i probably listened to it less than 20 hours- like new. I Have over $500 invested in this system. Great deal. no bOX OR maNUAL.

Massdrop + THX AAA 789 Linear Headphone Amplifier Stereo Amp- **PRE-OWNED**. MISSING POWER SUPPLY. REPLACEMENT CAN BE PURCHASED ONLINE FOR $15-$20

THE WORLDS MOST LINEAR AMPLIFIER Announced at CES 2018, the Drop + THX Achromatic Audio Amplifier (THX AAA) 789 is a linear bipolar amplifier with feed-forward error correction. Its designed for objectivists who appreciate an incredibly clean, transparent ampthe sought-after wire with gain whose amplification is wholly uncolored by a sound of its own. Made in collaboration with THX Ltd., it features the companys groundbreaking THX AAA and feed-forward topology, which reduce distortion by 20 to 40 dB for realistic, fatigue-free listening. In fact, this bridged-output amps performance figures speak for themselves: Its powerful (2 x 6W at 32 ohms) and quiet (136 dB SNR) with a record-low THD of -140 dB at 300 ohms, 100 mW. Thats four times the power of the Objective 2 amp, for example, with far less distortion.

Drop THX AAA ONE Amplifier Works Perfect - Fast Ship In Great Condition..

Drop + THX AAA 789 Linear Headphone Desktop Amp CONDITIONThe item listed is in used condition light signs of usage may presents, charger included May show minor wear, and tear from shelf storage, see pictures for further details The item will be carefully shipped in a box with proper padding. SHIPPING Shipping varies by location. Expedited shipping available. This covers shipping, tracking number, and packaging materials. RETURNSWe offer 30 days returns for unopened, and unused items We cover the return shipping fees. SALES TAXeBay will charge sales tax on items as required by the state of residence. Contact Us For More Information Were Here To Assist!