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.

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.

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.

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 LINEAR AMPLIFIER | EXCELLENT CONDITION. Listen to our Audiophile Community, and you’ll hear that headphone amp users want two things: an accessible, solid-state competitor—and more THX. We took care of both in our latest collaboration: the Drop + THX AAA ONE Linear Amplifier. Designed for entry-level listeners and enthusiasts in search of a refined feature set, the THX AAA ONE is a slimmed-down version of our beloved THX 789 linear amp. It does away with the 789’s balanced inputs and outputs in favor of a single-ended output and an all-new preamp output, which is perfect for connecting to powered speakers. Of course, it also features THX’s legendary AAA technology to deliver detailed amplification with next to no distortion, as well as three gain stages to drive headphones at all impedance levels. With everything you need and nothing more, you could say it’s the ONE. Inside the Drop + THX AAA ONE Linear Amplifier, distortion is all but defeated. Harmonic distortion, crossover distortion, intermodulation—these unwanted symptoms of electric current are reduced to nearly imperceptible levels through THX’s patented AAA technology. With distortion up to 40 decibels quieter than competing Class-A amplifiers, the Drop + THX AAA ONE transmits audio in its purest possible form to any pair of headphones. Select from three carefully calibrated gain stages to drive sensitive IEMs, high-impedance dynamic headphones, and everything in between. Switch to an all-new preamp output using the dedicated “Pre” button, and pair the Drop + THX AAA ONE with powered speakers or a power amp for crystal-clear preamplification. Finished in a sleek and strong aluminum housing, it’s sure to look (and sound) great wherever you set it. You may know THX from the goosebump-inducing “Deep Note” played before many blockbuster films, but the company has been associated with high-performance audio since its founding by legendary filmmaker George Lucas in 1983. The THX system isn’t a recording technology, but a certification. For any theater, product, or work to become THX certified requires a rigorous set of criteria. If these qualifications are met, the resulting sound is as close to what the mixing engineer intended as possible. From home-theater systems and headphones to gaming consoles and productions on the silver screen, THX is committed to delivering the most immersive audio experience achievable. General All parameters measured at 0 dB gain, 1 kHz, with unbalanced inputs and 300-ohm load unless otherwise noted Inputs: Stereo RCA gold-plated Outputs: 1/4 in (6.35 mm), TRS gold-plated Neutrik, Stereo RCA preamp gold-plated Frequency response: + 0.01 dB / - 0.03 dB 20 Hz – 20 kHz Input impedance: 1 kOhms Crosstalk: -93 dB, 300 ohms: 0.002240% Noise (A-wt): 0.95 uV, potentiometer at nil SNR: 140.2 dB, 300 ohms, <10% THD Gain: 0.25x , 1.0x, 4.0x (-12, 0, +12 dB), selectable via front switch Chassis: High-grade CNC-milled aluminum with bead-blasted finish Power supply: 30 VDC inline brick, switching power supply that handles 100–240 VAC (US plug; adapter needed for global use) Dimensions: 8.1 x 8.1 x 1.5 in (20.7 x 20.6 x 3.9 cm) Weight: 2.6 lbs (1.3 kg) Single-Ended Output Output power: 1500 mW, 16 ohms, <1% THD (watts per channel) Output power: 2700 mW, 32 ohms, <1% THD (watts per channel) Output power: 280 mW, 300 ohms, <1% THD (watts per channel) Output power: 140 mW, 600 ohms, <1% THD (watts per channel) THD: -142 dB, 300 ohms, 1 mW: 0.000008% THD: -118 dB, 300 ohms, 100 mW: 0.000126% THD: -120 dB, 32 ohms, 1 mW: 0.000100% THD: -130 dB, 32 ohms, 100 mW: 0.000032% THD: -117 dB, 16 ohms, 1 mW: 0.000140% THD: -132 dB, 16 ohms, 100 mW: 0.000025% IMD: -114 dB, SMPTE 70 Hz + 7 kHz, 300 ohms, 1 V: 0.000398% IMD: -131 dB, DFD 18 kHz + 19 kHz, 300 ohms, 1V: 0.000028% Crosstalk: -93 dB, 300 ohms: 0.002240% Noise (A-wt): 0.95 uV, potentiometer at nil SNR: 140.2 dB, 300 ohms, <10% THD Gain: 0.25x , 1.0x, 4.0x (-12, 0, +12 dB), selectable via front switch Output impedance: < 0.1 ohms Preamp Output Output voltage: 9.0 V / +21 dBu, <1% THD, 600 ohms load Output power: 140 mW, 600 ohms, <1% THD (watts per channel) Output impedance: < 0.1 ohms THD: -142 dB, 600 ohms, 1 mW: 0.000008% THD: -118 dB, 600 ohms, 50 mW: 0.000126% IMD: -114 dB, SMPTE 70 Hz + 7 kHz, 600 ohms, 1 V: 0.000398% IMD: -131 dB, DFD 18 kHz + 19 kHz, 600 ohms, 1V: 0.000028% Crosstalk: -110 dB, 600 ohms: 0.000300% Noise (A-wt): 0.95 uV, potentiometer at nil SNR: 140.2 dB, 600 ohms, <10% THD Gain: 0.25x , 1.0x, 4.0x (-12, 0, +12 dB), selectable via front switch In excellent condition. Very light signs of usage. Fully tested and working. Comes with non-uk power supply and an adapter. Please take a look at the photos. If you have any questions or queries please do not hesitate to message me. Collection is welcome however delivery is also available. Collection available from SL1. Dispatched with Royal Mail 1st Class.

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.

Massdrop THX AAA 789 Linear Amplifier. I received it brand new as a gift a few years ago but never used it more than a couple of times. If I have to say how many hours I can say this item had less than 10 hours of use, its basically new.. I listed it as a used device because unfortunately, it had a little mark underneath that can be seen in one of the photos but other than that it looks like new. I believe this AMP can power pretty much any set of headsets on todays market. Ive used it with following: DT 990 Pro (250 and 600 Ohms) DT 880 Pro ( 600 Ohms ) DT 770 Pro ( 80 Ohms ) Tygr 300R HD660s HD58x Jubilee HD599 AKG 712 Pro Etc.. Comes with the US Socket adaptor lead and the UK Socket adaptor lead Feel free to ask if you have any questions and Ill do my best to help! Sold as seen in the pictures, well packed and secured, sign for, and insured. Happy bidding !!

Includes a third party power cable that it comes with when I got it. The volume knob is smooth and everything is in working order.

MassDrop x Sennheiser HD 6XX & Drop + THX AAA One Linear AMP. Great condition, light use, working perfectly. If you know audio gear, you know the Sennheiser HD 650. The company’s flagship from 2003 to 2009, this open-back headphone has shown serious staying power. Praised for its richly detailed, effortlessly enjoyable sound, it remains one of the most talked-about products on Head-Fi today—and is still widely considered among the best headphones under $1,000. So when we teamed up with Sennheiser on its first-ever community-driven design partnership, the HD 650 was a natural place to start. A new revision of the popular all-rounder, the Massdrop x Sennheiser HD 6XX has that same great sound plus a few updates, and a price that makes it even easier to love. Listen to our Audiophile Community, and you’ll hear that headphone amp users want two things: an accessible, solid-state competitor—and more THX. We took care of both in our latest collaboration: the Drop + THX AAA ONE Linear Amplifier. Designed for entry-level listeners and enthusiasts in search of a refined feature set, the THX AAA ONE is a slimmed-down version of our beloved THX 789 linear amp. It does away with the 789’s balanced inputs and outputs in favor of a single-ended output and an all-new preamp output, which is perfect for connecting to powered speakers. Of course, it also features THX’s legendary AAA technology to deliver detailed amplification with next to no distortion, as well as three gain stages to drive headphones at all impedance levels. With everything you need and nothing more, you could say it’s the ONE. AMP has US plug.