Tube Headphone Amplifier with Balanced Output Technical Specifications Headphone Amplifier • Toroidal Output Transformer • Dual Output / Unbalanced and Balanced • Headphones load impedance : 16 - 600 Ω • Conformity headphone impedance : Low Z (16 to 62Ω), High Z (120 -600 Ω) • Frequency bandwidth : 1 Hz - 100KHz - 3dB • THD at 300mW/ 1KHz : 0.1 % • Maximum output power : 600mW + 600mW / 50 Ω • ¼" stereo headphone jack and XLR Balance Combo jack • Triode Pure Class -A, None Feedback • Input / output galvanic isolation Pre-Amplifier • Input impedance: 100KΩ • Alps Blue Velvet potentiometer • Pre-amp Gain: 20dB ( x 10 ) • Pre-amp Output Impedance : 150 ohm • Frequency bandwidth : 1 Hz - 100 KHz - 3dB • No White Noise • Hum & Noise : Less than 0.1mV • Two 6N1P-V pre amplifier tubes • Two 6N6P-I output driver tubes • Four pairs of selectable gold-plate unbalance RCA inputs • One pair of gold-plate pre-amplifier unbalance RCA output • 200% Heavy duty toroidal power transformer • Power Consumption : 40 Watt • Voltage: AC 115//230V, 50/60 Hz • Unpacked Dimension (mm): (H)170 x (W)260 x (D)290 • Shipping Weight: 10Kg www.analog.co.kr Prelude 3.1 PROFESSIONAL TUBE HEADPHONE AMPLIFIER JUL. 25, 2011 ⓒ Copyright 2011. ADLAB All rights reserved. ADLAB and iTUBE are registered trade marks of Analog Design Labs.