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1. Dual headphone jack output is prior and can output at the same time, stereo RCA output will auto disconnected when headphone is inserted.
2. Pluggable tube socket design, 6J9 can be upgraded to 6*9N / EF861 tubes.
Parameters
Audio input: Optical / Coaxial / Stereo RCA
Audio output: Stereo RCA / 3.5mm headphone jack / 4.4mm balanced headphone jack
Max sampling rate supported by coaxial / optical: PCM 192KHz/24bit
Max output power of headphone jack:
1200mW/32Ω (3.5mm jack)
260mW/32Ω (4.4mm jack)
Matched headphone impedance range: 16-600Ω
Frequency response: 20Hz-20kHz(±0.5dB)
THD: 0.03%
SNR: ≥106dB
RCA output level: 2VRMS
Treble & Bass range: ±6dB
Working voltage: DC 12V
Dimensions(W*D*H): 132*132*33mm / 5.20*5.20*1.30in
Package dimensions(W*D*H): 310*240*80mm / 12.20*9.45*3.15in
Net weight: 542g / 1.19lb
Package weight: 900g / 1.98lb
Packing List
1*TUBE-T7 Preamp
2*6J9 Tube
1*DC 12V Power Adapter
1*Optical Cable
zach b.
Reviewed in the United States on April 29, 2025
I just purchased this and have used it for over a week it came packaged nicely and the tubes were well protected and fit perfectly. It sounds amazing and I use it connecting my TV to a powered 1200watt PA speaker and it sounds next level quality now. for those of you that don’t know tubes that well go research tube Guitar amps, it’s the exact same technology and what it does is it rounds off the tone from being so digital and gives you more depth clarity and organic sound. Btw I’m not a payed sponsor
Alex B
Reviewed in the United States on September 26, 2023
Great value for what appears to be a well functioning tube preamp with optical in. So far so good.
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