Sugden Masterclass HA-4 Headphone Pre-amplifier
The HA-4 is not only a state of the art class A headphone amplifier, it can also be used as a compact high-end pre-amplifier. The design is similar to our top of the range Sapphire DAP-800 and will drive any dynamic headphone. Featuring Sugden VCV circuit and coupled to a pure class A zero feedback mosfet output stage. The HA-4 is unconditionally load stable with a discrete constant voltage series power supply. A high input impedance ensures absolute minimal loss of signal with perfect current gain.
Facilities
| Inputs |
One line level input, one balanced input |
| Outputs |
Stereo ¼” jack socket, one line level output |
| Volume Control |
Manual operation |
Specifications
| Input Impedance |
20k Ohms |
| Gain |
16dB |
| Channel Separation |
>90dB |
| Frequency Response |
>0.3dB 20Hz-30kHz |
| Signal to Noise |
>95dB |
| Output Impedance |
1 Ohm |
| Gross Weight (packed) |
6kgs |
| Dimensions |
80 x 250 x 310mm (hwd) |
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Sugden Masterclass DAC-4 Digital to Analogue Converter