Product Description
The MX HPA is a very high performance fully balanced Class “A” headphone amplifier in a beautifully designed and executed casework. The unit features two inputs, balanced and single ended. These are separate and an input select switch allows choice between separate balanced and single-ended sources. These inputs accept normal line-level signals of 300mV nominal (suitable for 30mV- >3V) from a wide range of equipment. Gain switching is provided to allow boost for higher impedance headphones, so the unit is compatible with all dynamic headphones regardless of impedance. It is recommended to use the LOW setting for headphones of 200 ohms or less; the HIGH setting for headphones over 200 ohms or particularly insensitive headphones. The front panel XLR/JACK sockets are dual purpose; it is possible to use either one or two pairs of standard 6.25mm ¼” stereo Jack- terminated headphones; or a single pair of headphones, terminated in two three-pin male XLR plugs. The necessary single ended/ balanced mode switching is carried out automatically on connection of the headphone(s).
Specifications
Output
Power 1.8 Watts per channel into 8 Ohms (27dBW)
Maximum output voltage 19 Volts RMS, 20Hz to 20 kHz; onset of clipping (54 Volts peak-to-peak) balanced.
Line input
THD+N 120dB ‘A’-weighted Input impedance 50k
Ohms Frequency response +0, –0.1dB, 10Hz to 20 kHz Gain,
LO position (volume max) 18db (8x) Gain,
HI position (volume max) 24dB (15x)
Connections
Line level inputs: 1 pair line level XLR (balanced) connectors 1 pairs line level RCA connectors
Headphone outputs: 1 pair 3-pin XLR/¼” stereo Jack combined sockets
Power requirement
Mains voltages 90-250VAC 50-60Hz universal worldwide supply Consumption <0.25 Watts standby (Orange LED lit) 15 Watts maximum (Blue LED lit, full power output)
Dimensions
Width 220 mm (8⅔”)
Height (including feet) 53 mm (2”)
Depth (front to back) inc. terminals 240 mm (9½”)
Weight Unit only, unboxed 2.2 kg (5 lbs)
In shipping carton 3.7 kg (8¼ lbs)
Standard accessories
IEC type mains lead (10-Amp type)
