Palmer PHDA 02 Reference Class Headphone Amplifier - 1-channel
In Stereo mode, the L/R input signal is fed to the left and right earphones while the volume level is set by the Stereo/Left control. The front panel inputs provide simultaneous connection of two headphones in parallel. In Mono mode, the left and right channels are summed, and the resulting mono signal is fed to both the left and right earphones. Again, volume is governed by the Stereo/Left control. In Dual Mono mode, the left and right channels can be used independently with individual level controls for the left and right earphones.
The PHDA02 operates with all headphones with an impedance of 8 up to 200 Ohms. Impedance matching is achieved by a specially designed switchable transformer. Uncommon and costly, this solution provides superior performance, dynamic range, and signal- to-noise ratio at all loads.
Combo input sockets allow for balanced XLR and unbalanced TS headphone connection while parallel XLR outputs facilitate daisy chaining multiple units. The integrated power supply operates with mains from 100 VAC to 240 VAC.
The PHDA02 is equipped with low-noise op amps, and the output amplifiers' discrete power transistors are mounted on heatsinks. Dimensions are 1 U 9.5".
Product type: Headphone Amp:
Input connectors: 6.3 mm Jack, XLR
Input impedance: (balanced) 20 k, (unbalanced) 10 k Ohm(s)
Output connectors: XLR, 6.3 mm Jack
Power output: 2 x 400 mW
Minimum connected impedance: 2 x 8 Ohm(s)
Frequency response: 20 - 20000 Hz
Operating voltage: integrated (115 / 230 V)
Operating voltage: 240 V AC / 50 - 60 Hz
Cabinet material: sheet steel/aluminium
Cabinet surface: powder coated/anodized
Width: 222 mm
Height: 44 mm
Depth: 175 mm
Weight: 1.58 kg