TentLabs Volume control

Build around these 2 PCB's

we are now offering a complete passive volume controlled pre-amp 

Technical description

64 steps of attenuation are achieved with 6 relays. This is a fundamental difference compared to other attenuators, which usually have more contacts or resistors in their signal way. The relays are controlled by a micro controller, which also takes care of input selection. A second micro controller on board of the display section takes care of remote control decoding and controls the other micro to achieve correct volume and input settings. It also displays these settings. Power supply consists of a low drop 5V regulator. On board rectifiers and decoupling capacitors assure proper functioning of the whole unit, being powered by either AC or DC.

Electrical Specifications

Input impedance: > 40 k-ohm (actual value depends on volume setting)
Output impedance: < 8 k-ohm (actual value depends on volume setting)
Power: AC or DC, 6 to 10V max, current max 150mA DC, 225mA AC (power connector supplied with module)
Volume setting: 64 steps of 1.0 dB
Channel imbalance: < 0.15 dB
Inputs: 4
Input / Output connectors: Cinch / RCA (can be supplied without connectors on special order)
Remote control: Not included, can be programmed by Philips / Marantz models and most Sony types

Prices and availability

The introduction price for the finished pre-amp is €575,- including VAT ex shipping.
We have this pre-amp in permanent demo.

Warrantee

The pre-amp is warranted for 5 years