MicroAmp HA400 Headphone Amplifier

– Built-in Lexicon 24-bit effects
– Precision GB30 mic pre-amps
– True, professional +48V phantom power for condenser microphones
– 2 Group busses
– Stereo Mix output
– 8, 12 or 20 mono Mic inputs, all with 2 stereo line inputs
– Up to 28 inputs to mix
– Aux sends, globally switchable pre or post-fade
– FX send
– Universal internal power supply
– Optional rack ears (standard on 12 channel consoles)
– Custom Karaoke preset
– Frequency Response – Mic / Line Input to any Output +/-1.5dB, 20Hz – 20kHz
– T.H.D. – Mic Sensitivity -30dBu, +14dBu @ Mix output < 0.01% @ 1kHz
– Mic Input E.I.N. (maximum gain) -126.5dBu (150O source)
– Aux, Mix and Masters (@ 0dB, faders down) < -85dBu
– Crosstalk (@ 1kHz) – Channel Mute > 96dB
– Crosstalk (@ 1kHz) – Aux Send Pots Offness > 86dB
– EQ (Mono Inputs) – HF 12kHz, +/-15dB
– EQ (Mono Inputs) – MF (swept) 150Hz – 3.5kHz, +/-15dB
– EQ (Mono Inputs) – LF 80Hz, +/-15dB
– EQ (Mono Inputs) – Q 1.5
– EQ (Stereo Inputs) – HF 12kHz, +/-15dB
– EQ (Stereo Inputs) – MF 720Hz, +/-15dB
– EQ (Stereo Inputs) – LF 80Hz, +/-15dB
– Power Consumption Less than 40W
– Temperature Range 5°C to +40°C
– Input & Output Levels – Mic Inputs +15dBu max.
– Input & Output Levels – Line Inputs +30dBu max.
– Input & Output Levels – Stereo Input +30dBu max.
– Input & Output Levels – Mix Output +20dBu max.
– Input & Output Levels – Headphones (@1500) 300mW
– Input & Output Levels – Recommended headphones impedance 32 – 200O
– Input & Output Impedances – Mic Inputs 2kO
– Input & Output Impedances – Line Input 10kO
– Input & Output Impedances – Stereo Input 45kO
– Input & Output Impedances – Outputs 150kO (balanced), 75O (unbalanced)