Interspace ATBB Analogue Terminating Balance Box
Passive PC Balance Box to eliminate Hum when connecting Audio from a Presentation PC with a Stereo 3.5mm Input Jack Plug on a Captive 1.8m lead, left and right output XLR Plugs, Stereo/Mono switch, 35db Pad Switch and Earth Isolation
Stereo PC sound cards inherently suffer with buzz and hum problems when connecting to professional PA systems. The PC Bal Box will isolate and "clean up" the sound quality. We have the obligatory ground Lift switch as well as a stereo to mono switch. A Pad switch (35dB) to bring the normal high level output of computer systems to a more normal level - we have Left and Right out so phase errors can be isolated as well as hearing pure stereo. As this is passive it will also work in reverse and act as a method to record external stereo or mono signals on to devices that need a 3.5mm (mini) jack input.
Signals:
- Typical input 700mVp-p unbalanced stereo audio
- Bandwidth: 20 Hz to 20 KHz Signal levels
- dependant on input level and output impedance
- Control Switches:
- Output Pad from -2db / -35dB
- Earth (Ground) lift
- Stereo to Mono
- Connections:
- Input: 3.5mm mini stereo jack
- Output: 2 male XLR
- Dimensions mm (inch):
- DxWxH: 71(2 8/10") x 64(2 1/2") x 40(1 6/10")
- Captive lead length 1.8m (6ft)
- Weight: 218g / 8oz
- Power: None required