Nobsound HiFi Bluetooth 5.0 Vacuum Tube Amplifier USB DAC Stereo Receiver COAX/OPT Home Audio Digital Amp w/VU Meter 100W+100W

 

Warm tips:
In addition to retaining all the original functions, ST-01 PRO is the latest upgraded version of ST-01:
1. ST-01 PRO supports U-disk input to play lossless formats music.
2. Add sensitivity adjustment of VU meter on its bottom, easy to set and match better with different input signals.
3. Add three decorative golden circles around tubes and VU meter, looks more exquisite and luxury.
Features
Unique and amazing combination: integrated ST-01/ST-01 PRO amplifier with VU meter into whole in such a mini size, the pointer dancing in the warm light with strong vintage feelings when enjoy HiFi music, dynamically decorates the audio system space. 

HiFi clear sound with tone control: resonable circuit and concise wiring, adopts vacuum tubes to soften the sound and filter out the digital feelings, sounds warm and sweet without noise. Also with treble and bass knobs to adjust one's own preferable sound styles, presents HiFi music with rousing highs and deep lows.

Strong output power and special AUX output: use TI's classic power amp IC, each channel can output 100W(4Ω) and easily to drive all 3-8Ω passive speakers, adds 3.5mm AUX output easy to connect another amplifier or active speaker / subwoofer to build multiple channel system and enjoy wonderful home theater experience.

With multiple digital audio inputs: Bluetooth 5.0 / USB / Coaxial / Optical / stereo RCA, compatible with most audio device such as phones, computers, tablets, TVs, TV, CD players etc. The perfect combination of DAC and amplifier, very suitale for audiophiles who have various audio devices. 

Practical functions to simplify use: with full-function remote control, all settings can be achieved from the distance; with input selection and indicators, clearly to show the working status in real time; aluminum alloy case is specially designed, cool and unique to decorate your desktop space.

Warm tips:
1. PC-USB input also supports mobile phones that with OTG functions, but Android system needs OTG cable and IOS system needs camera kit, please prepare by yourself. 
2. Pluggable tube socket, default 6K4 vacuum tubes, can be replaced by 6J1, 6J2, 6J3, 6J4, 6J5, 6"1N, 6*4N, 6*5N, 5654/5654W, 5725, 6AK5, EF95, 6BA6, 403B, etc.
3.When the volume is turned down to minimum, the BT/(USB) indicator will be flashing; and when to maximum, the PC-USB indicator will be flashing; At this time, the indicator of current input channel will go out but light on when the adjustment is stopped.
Parameters
Brand: Douk Audio

Model: ST-01 / ST-01 PRO

Audio input: Bluetooth / USB (PC-USB) / Coaxial / Optical / RCA / U-disk (only ST-01 PRO supported)

Audio output: Banana speaker jacks / 3.5mm AUX

Max output power: 100W+100W (4Ω)

Matched impedance: 3-8Ω

Sampling rate supported:
USB input: 96KHz/24Bit
Bluetooth input: 48KHz/24Bit
COAX/OPT inputs: 192KHz/24Bit    

Supported formats of U-disk: MP3 / WAV / WMA / FLAC / APE

Max capacity of U-disk: 64G

Treble / Bass adjustment range: ±6dB

System PC-USB supported: XP/W7/W8/W10/MAC/ Linux

Frequency response: 20Hz-20kHz(±1dB)    

S/N ratio: ≥98dB

THD: 0.07%

Working voltage: DC 18-30V

Dimensions(W*D*H): 115*98*54mm / 4.53*3.86*2.13in

Package dimensions(W*D*H): 295*225*85mm / 11.61*8.56*3.35in

Net weight(ST-01): 634g / 1.40lb

Net weight(ST-01 PRO): 661g / 1.46lb

Package weight: 1.4kg / 3.09lb

Packing List
1*ST-01/ST-01 PRO Amplifier

1*DC 24V Power Adapter (optional)

1*Remote Control (without 2*AAA batteries)

1*USB Cable

1*Bluetooth Antenna

1*User Manual

ST-01-PRO

ST-01