xDuoo MT-601 Tube Class-A Headphone Amplifier
Time for a warm up
With 100+ products and years of service under its belt, xDuoo is a mainstay of the audiophile landscape. Best known for their amps, DACs, and USB interfaces, xDuoo produces stellar mid-fi products on a quarterly basis.
The xDuoo MT-601 combines the sumptuous warmth of a tube amplifier with the dynamics and speed of a transistor circuit for an amp that can handle any genre thrown its way. It’s a great purchase for anyone looking to pair the old-school tube sound to single-ended headphones, no matter their impedance.
Tube + Transistor
Jump back in time with the supple sounds of tube amplification. Known for its soft, sweet mids and laid-back highs, the 6N11/E88CC tube of the MT-601 will thaw the coldest of expectations with its warm reproduction of vocalists and stringed instruments.
A common complaint about tube amplifiers is their lack of high frequency response and resolving power. To overcome this, xDuoo added a rear transistor circuit capable of large dynamics, high speed, and resolving power. Together, they offer the best of both worlds.
The MT-601 is a class-A amplifier. Using simple circuits that draw the same amount of current and consume the same amount of energy whether receiving a signal or not, this is the most straightforward of amplifier types. It isn’t subject to electromagnetic interference caused by digital components, so its total harmonic distortion and signal-to-noise ratio are exceptionally low.
Tubes will roll
Adventurous audiophiles will appreciate the ability to swap the stock tube for other tubes. Each tube has a different sound signature, adding or subtracting qualities like warmth, detail, and soundstage. It’s a fun way to play with the sound signature of a single amp, often for less than $30 a pop. Just be sure to find a reputable dealer of tubes before buying.
Doubles as a preamplifier
The minimalist backplate provides only one RCA input and one RCA output. The latter can be used to connect the MT-601 to another amplifier or active speakers, affording either the sonic benefits of tube amplification.
Tube + transistor power
Allows for tube swapping
Amp can be used as preamplifier
Power supply: DC24/2A
Output power: 200mW (32Ω)
Dynamic range: 85dB (32Ω)
Frequency response: 10Hz-60kHz (+/-0.5dB)
Suitable headphone impedance: 16-600Ω
Size: 4.7 x 3 x 1.5” (12 x 7.8 x 4cm)
Weight: 0.79lbs (0.36kg)
THD+N: ≤0.01% (1kHz & 32Ω)
6.35 to 3.5 converter