Douk Audio DAC T1 PRO HiFi Tube Preamp with Bluetooth 5.0 Receiver S/PDIF USB DAC D/A Audio Adapter Headphone Amp W/OLED Display

FeaturesAmazing combination in appearance and functions: integrated DAC-T1-PRO DAC with retro tubes and modern OLED display into a whole, keep both strong vintage feelings and convenient use. Even in limited space, warm filament dynamically decorates the audio system and give you a wonderful acoustic enjoyment with large dynamic and sweet sound.With multiple audio inputs and outputs: Bluetooth / PC-USB / coaxial / optical / RCA inputs, compatible with most audio sources such as phone, tablet, computer, digital player etc. With stereo RCA and 3.5mm headphone jack outputs, can connect different amplifier / active speaker / headphones, HiFi music can be easily enjoyed.Imported JAN5654 tubes and vintage warm sound: comes with JAN5654 tubes, greatly improves everything associated with your music, sounds soft and delicate, dynamic and pleasing. Easy to compare the difference between digital sound and tube sound via bypass function. Pluggable tube socket design, upgrade to 61N, 6AK5, EF95 etc. to enjoy tube sound of different styles.Complete design and perfect details: support treble and bass control, easy adjust one's own preferable sound styles. Besides large OLED display to indicate working status, also with full function remote control to achieve all settings. Powerful function with attractive appearance, very suitable for the audiophiles who pursue HiFi sound in limited space.High-end materials and unique structure are adopted to ensure better performance:QCC5125 Bluetooth chip, supports ACC/SBC/APTX/APTX-HD/LDAC, achieves further distance and lossless signal transmission without delay.ESS9028Q2M independent DAC chip, OPA1656 op amp, NJW1194 digital tone control chip, with larger dynamic range, lower distortion and higher resolution.9123 USB chip with special driver, support 24Bit/192Khz transmission to improve the sound quality.Classic headphone amp architecture (2NE5532), provide larger output power enough to drive 300Ω headphones.Warm tips1. For safer and faster delivery, the remote control may not include batteries (2AAA), please prepare it by yourself.2. 3.5mm headphone jack output is prior, stereo RCA output will auto disconnect when headphone is inserted.3. PC-USB (systems below win10) input need special driver to get 24Bit/192KHz transmission, please contact us for it when you receive DAC-T1 PRO. It also supports OTG functions, but Android system needs OTG cable and IOS system needs camera kit, please prepare by yourself. ParametersChip architecture: QCC5125 (Bluetooth chip) + 9123 (USB chip) +ESS9028Q2M (DAC chip) + NE5532 (amp)Audio input: Bluetooth / PC-USB / Coaxial / Optical / Stereo RCAAudio output: Stereo RCA / 3.5mm headphone jackBluetooth version: 5.0 (support APTX /APTX-HD / LDAC)Sampling rate supported:PC-USB: 24bit / 192KHzCoaxial / Optical: 24bit / 192KHzPC-USB operation system supported: W7/W8/W10/MAC/LinuxFrequency response: 20Hz-20KHz (±0.5dB)THD: 0.08%S/N ratio: ≥110dB Treble / Bass control: ± 6dbMatched headphone impedance: 16-300ΩHeadphone output power: 150mWOutput level: 2.4VrmsWorking voltage: DC 12VDimensions(WDH): 18512841mm / 7.285.041.61inNet weight: 622g / 1.37lbPackage weight: 1.1kg / 2.43lbPacking List1DAC-T1 PRO DAC25654 Vacuum Tube1DC 12V Power Adapter1USB Cable1Optical Cable1Bluetooth Antenna1Remote Control (without batteries)1*User Manual