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.

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.

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.

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.