APPJ 1502A Tube Headphone Amplifier Discussions | Drop

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APPJ 1502A Tube Headphone Amplifier

Audiophile

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Noldir

Oct 5, 2015

Well that's embarrassing, just found this: Class-A single-ended triode and 100% tube amplification. Designed for resolution of fine musical details, expansive soundstage presentation, and lush tonal quality. 6P6P Replaceable Tube: 6V6 6N4 Replaceable Tubes: 12AX7, ECC83, ECC803 Specifications: • Tube: 6N4+6P6PX2 • Input: RCA Jacks • Input Impedance: 10K ohms • Input Sensitivity: 800mV • Output: 6.3mm Jacks • Output Impedance: 8 to 600 (Japan Z11-EI48*24 Output Transformers) • Output voltage: 18Vp-p • Frequency Response: 30-30Khz (+-1db) • Input AC Voltage: 100-250V AC • Power Consumption: 27W • AC: Standard IEC Jack with Fuse protection (2A Fuse) • Weight: 2.5kg • Dimensions: 160mm (w) x 134mm (d) x 125mm (h) • 0.13W/600 ohms 0.26W/300 ohms 0.5W/100 ohms 1W/32ohms
From http://www.head-fi.org/t/780178/any-opinions-reviews-on-gemtune-appj-pa1502a
Doesn't sound to impressive power wise... Will these drive Sennheiser hd650 or alpha dogs?

Oct 5, 2015

nicpope

448

Oct 5, 2015

NoldirWe tested it in the office with a pair of HD800's and it had no problem driving them to sufficient level.

Oct 5, 2015

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GES11T

2508

Oct 7, 2015

nicpopeBut drive them well or just sufficient? How would u describe its sound signature?

Oct 7, 2015

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Congi

Dec 10, 2017

GES11TIt does drive HD800 very well. My volume knob never pass 11 o'clock. Sound signature is very neutral so it's the final result depends on your DAC.

Dec 10, 2017

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