Sonifex CM series headphone amplifiers have been designed with a compact form to aid ergonomic positioning for those requiring control over headphone volume.
This compact unit allows the connection of a balanced analogue stereo line input via RJ45 with 'StudioHub+' pin-out. The RJ45 connection is located on the rear facing panel of the HPR1. The front facing panel has a rotary volume control and 6.35mm headphone jack socket for use with headphones with an impedance above 150ohms.
An internal transformer with a ratio of 2:1 ensures that any headphone load presented at the output is reflected through to the input at a 1:4 ratio. The headphone level will be at half the level on the incoming signal with the volume control at 100%.
| Maximum input level: |
+28dBu |
| Maximum output level: |
+22dBu |
| Frequency response: |
20Hz to 20kHz, +0/-0.5dB |
| Noise: |
Better than -115dBu, A-weighted |
| Distortion: |
Less than 0.01%, reference +8dBu output |
| Dimensions: |
77 x 83 x 42 (WxDxH)mm |
| Weight: |
0.22kg |
Optional accessories: CM-MNT1 Desk mount panel
This has the same specification and feature set as the CM-HPR1, however the stereo analogue inputs are on balanced 3-pin XLR as opposed to RJ45 connector.
Optional accessories: CM-MNT1 Desk mount panel
CM-MNT1 Desk Mount Panel
All of the Passive Packs, along with the CM-TBU and CM-TLL, can be mounted to the underside of a desk using the CM-MNT1 desk mount plate. This fixes to the top side of the product and screws to the underside of a surface.
