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xDuoo
xDuoo MT-601s Tube Class-A Headphone Amplifier
Time for a warm up
The xDuoo MT-601s 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.
The MT-601s is a reissue of the MT-601 featuring a 12AU7/ECC82 tube instead of a 6N11/E88CC tube.
Tube + Transistor
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.
Class-A amplifier
The MT-601s 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-601s to another amplifier or active speakers, affording either the sonic benefits of tube amplification.
Product highlights
- Tube + transistor power
- Class-A amplifier
- Allows for tube swapping
- Amp can be used as preamplifier
Specs
- Power supply: DC24/2A
- Output power: 200mW (32Ω)
- Dynamic range: 85dB (32Ω)
- Frequency response: 10Hz-60kHz (+/-0.5dB)
- Suitable headphone impedance: 16-600Ω
- Gain: +18dB
- Size: 4.7 x 3 x 1.5” (12 x 7.8 x 4cm)
- Weight: 0.79lbs (0.36kg)
- S/N: >100dB
- THD+N: ≤0.01% (1kHz & 32Ω)
What’s included
- xDuoo MT-601s
- AC cable
- Adapter
- 6.35 to 3.5 converter
- User’s manual
- Warranty card