Douk Audio Tube Headphone Amp: for XLR, 4.4mm, 6.35mm HiFi Headphones, Stereo Preamplifier for Amplifiers, Speakers, Home Desktop Audio System, with VU Meter & German Valvo Vacuum Tubes (E2)
German Valvo Tube
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Detail
German Valvo Tubes｜XLR/4.4mm/6.35mm Jacks｜Dual Preamp｜VU Meters｜Swappable Op-Amp
1For Various Headphones2For Desktop Amplifiers3For Studio Monitors1Front2Back3Side4Top5Bottom Brand:Douk AudioModel:E2Audio input:2 groups of stereo RCAAudio output:Stereo RCA / 4-pin XLR & 4.4mm & 6.35mm headphone jackFrequency response:20Hz-20kHz (±0.5dB)THD+N:0.02%SNR:≥110dBMatched headphone impedance:16-600ΩHeadphone output power:Low gain (L): 0.55W High gain (H): 2WRCA output level:Low gain (L): 4.3V; High gain (H): 8.4VInput sensitivity:2VWorking voltage:DC 15V / ≥3ADimensions (W*D*H):95*92*50mm / 3.74*3.62*1.97inPackage dimensions (W*D*H):280*230*110mm / 11.02*9.05*4.33inNet weight:1.17kg / 2.58lbPackage weight:1.6kg / 3.53lbCan all 3 headphone jacks be used at once?
No. Use only ONE headphone jack (XLR, 4.4mm, or 6.35mm) at a time. The included 6.35mm-to-3.5mm adapter can be used.
Can RCA output and headphones work together?
Yes! RCA audio output to speakers/amps and headphone output work simultaneously. Both outputs share the same volume/gain control.
Is the op-amp upgradeable?
Yes. The LME49720 op-amp is socketed and replaceable. Compatible dual op-amps: MUSES02, OPA2604, OPA2134, etc. NE5532 is not socketed.
What power adapter is required?
Use only the included DC 15V power adapter (≥3A). Using voltage lower or higher than 15V will cause poor performance or damage it. (Your package includes: 1x E2 Amp, 2x ECF801 Tubes, 1x DC15V Power Adapter, 1x 6.35mm to 3.5mm Adapter, 1x Manual.)
Does the unit contain reused parts?
Yes, two WIMA capacitors are reused from previous devices due to scarcity. All components are selected for optimal audio performance.
Immersive Valvo Tube Sound for Any Headphones
Studio-Grade Power for Any Headphones (16Ω-600Ω)
Military-Grade Valvo Tubes at 175V Voltage
Drive Speakers + Headphones Simultaneously
Walnut Wood, VU Meters & Exposed Tubes
Audiophile-Grade Customization
Parameters
Can all 3 headphone jacks be used at once?
Can RCA output and headphones work together?
Is the op-amp upgradeable?
What power adapter is required?
Does the unit contain reused parts?
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