Allnic Audio HPA 5000
Output Transformer-Less (OTL) and Output Capacitor-Less (OCL) Headphone Amplifier
The HPA-5000 is Allnic Audio’s Output Transformer-less (OTL) and Output Capacitor-less (OTC) stereo headphone amplifier. The HPA-5000 utilizes a true balanced Positive-Negative cancellation circuit. The HPA-5000 has a voltage gain of +28dB, and a maximum output of 5 watts. It works best with headphones having an impedance of from 30 to 50 Ohms.
High-quality, NOS tubes
True OTL/OCL design
Pure Class A Operation
Product Specifications
- Inputs: Two (2) pairs unbalanced (RCA)Headphone Output: One (1) one-quarter inch (1/4”)
- Frequency Response: 20Hz ~ 20KHz (±0.3db)
- Voltage Gain: +28dB
- Optimum Headphone Impedance: Thirty (30) to fifty (50) Ohms
- Output Wattage: Five (5) watts
- Maximum Input Voltage: Five (5) volts RMS
- THD (Total Harmonic Distortion): Less than 0.03% (1KHz, Output 1V)
- S/N Ratio: -68db (CCIR, 1KHz)
- Power Consumption: 70 Watts
- Tubes: 6AN8 – New Old Stock – first gain stage – no equivalents
- E180CC - New Old Stock -
- Second gain stage – approximately electrically (not sonically) equivalent: CV8431, 7062, 5965, 12AV7, 6414, 6829, 7233 – New Old Stock – no equivalents
- Fuse: AC 2A, 250V
- Dimensions: 230mm (~9.1 inches) x 380mm(~12.3 inches) x 165mm (~6.5 inches) (W x D x H)
- Weight: Unpacked - 9 Kg (~19.9 lbs), Packaged - 11 Kg (~24.26 lbs)
