The HPA-10000 Features: ● True OTL/OCL (Output Transformer Less and Output Capacitor Less) Circuit. The OTL/OCL circuit eliminates the potential for any coloration or harmful time delay problems caused by transformer and capacitor coupling devices. ● Application of Advanced “Negative/Positive Feedback Cancellation Circuit. The cancellation circuit is the most critical factor for optimal operation of an OTL/OCL amplifier. Allnic has perfected this circuit design. ● High power output. Outputting 10W/50ohm, the HPA-10000 excels at driving low efficiency, planar-magnetic headphones. ● True 61-step “Constant Impedance Attenuator” (CIA). The HPA-10000 uses Allnic’s sophisticated, difficult to make, precision CIA, which we consider superior to any other type. ● Fully vibration-isolated first-stage tubes. The first stage tubes are fully isolated from noise-causing external vibrations by Allnic’s in-house designed and manufactured “liquid rubber” tube damper sockets. ● True OTL/OCL preamp output available . ● Remote controlled volume and input (5) selector. S PE CI F I C A T I O N S F O R: T HE AL L N I C A U D I O HPA- 10000 XL STEREO OTL/OCL HEADPH O N E A M P L I F I ER Inputs: Three (3) pairs Unbalanced (RCA). Two (2) pairs Balanced (XLR) Headphone Output: Two (2) one-quarter inch (1/4”). Two (2) four-pin Balanced (XLR) Line Preamp Output: One(1) pair of RCA (+16dB) Frequency Response: 20Hz ~ 20KHz (±0dB, Flat) Voltage Gain: +28dB Optimum Headphone Impedance: Fifteen (15) to six hundred (600) ohms Output Wattage: Ten (10) watts Maximum Input Voltage: Nine (9) volts RMS THD (Total Harmonic Distortion): Less than 0.03% (1KHz, Output 1V) S/ N Ratio: -90db (CCIR, 1KHz) Power Consumption: 180 Watts Tubes: ● 7258 X 2– New Old Stock – first gain stage – no equivalents ● E-180CC X 2 – New Old Stock – Second gain stage – approximately electrically (not sonically) equivalent: CV8431, 7062, 5965, 12AV7, 6414, 6829 ● 6C19P X 8 – New Old Stock – equivalent: 6C19PI, 6S19P Fuse: AC 3A, 250V Dimensions: 430mm (~17 inches) x 390mm (~15 inches) x 185mm (~7.2 inches) (W x D x H) Weight Unpacked: Packaged: 15.4 Kg (~33 lbs) 18 Kg (~39 lbs)
