The HPA- 5000 XL is Allnic Audio’s Output Transformer-Less (OTL) and Output Capacitor Less (OCL) stereo headphone amplifier. The HPA- 5000 XL utilizes a true balanced Positive-Negative cancellation circuit. The HPA- 5000 XL has a voltage gain of +28dB, and a maximum output of 5 watts. Offering stunningly realistic music reproduction, it works best with headphones having an impedance from 30 to 600 ohms.


The HPA- 5000 XL has the following features:

• Works best with headphones having an impedance of from 30 to 600 ohms

• High-quality, NOS tubes

• True OTL/OCL design

• Pure Class A operation

• Precision 41-step single silver contact attenuator volume control. The HPA-5000 XL does not employ a digital IC volume control or a low-cost carbon film volume control. The HPA-5000 XL has no (± 0db) channel unbalance at any volume level.

• New vacuum tube damping technology – Allnic Audio’s patented “Absorb GEL tube damper” technology prevents harmful vibrations from reaching the driver tubes and, therefore, prevents micro-phonic noise propagation in the tubes. The Allnic Audio Absorb Gel damper technology effectively solves a problem that plagues most tube amplification systems. Provided other tube components do not introduce micro-phonic noise into your system, with the Absorb Gel damping system, you will enjoy a degree of transparent sound that will surprise and please you.

• As are all Allnic Audio products, the HPA-5000 XL is fully RoHS (EU Reduction of Hazardous Substances regulation) compliant in construction and material.

Technical Specification
Inputs one (1) pair of unbalanced RCA, one (1) pair of balanced XLR
Outputs one (1) x one-quarter inch, one (1) x four-pin XLR balanced
Frequency Response 20Hz-20kHz flat
S/N Ratio -68dB (CCIR, 1kHz)
Output Wattage 5 Watts
Voltage gain +28dB
Optimum Headphone Impedance 30 to 600 ohms
Maximum Input Voltage 5 V RMS
Tubes 6AN8 x 1 (New Old Stock, first gain stage, no equivalents); E180CC x 2 (New Old Stock, 2nd stage driver tube: approximately electrically (not sonically) equivalent to CV8431, 7062, 5965, 12AV7, 6416, 6829); 7233 x 4 (New Old Stock)
Dimensions(WDH) 230mm (9.1 inches) x 380mm (3 inches) x 165mm (6.5 inches)
Weight 9kg (19.9 lbs) net; 11kg (24.26 lbs) shipping

If you want to experience Allnic Audio’s products,

please contact your local authorized dealers or

Audio Mentors, which is Allnic Audio’s design & marketing company.

Audio Mentors


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