Thank you for purchasing the OBH-22 Infra-red remote control passive Pre-Amp.
You are now in possession of a State of the Art product. The functions and operation
of the OBH-22 are extremely simple. However, the following notes are provided to
explain all aspects of its design and use.
OVERVIEW
The function of the OBH-22 is to provide input selection
and volume adjustment to your Hi-Fi system from your
armchair, via infra-red remote control. The unit consists
of a high quality motorised volume potentiometer, and
two stereo relays which select the desired input and tape
output, together with a muting relay that can short the
signals to ground. A built-in micro-controller decodes the
infra-red signals transmitted by the handset and
translates them into commands which activate the
motorised potentiometer and the muting and input
selection relays. After each operation, the micro-
controller turns itself off to avoid any possibility of
interfering with the main music signal. LED’s are used to
indicate the status and mode of operation.
The OBH-22 is purely passive and does not introduce
any gain or distortion into the signal path. It is therefore
suitable to be used as a control Pre-Amp, provided the
sensitivity of the power amp that is being used is high
enough to be driven directly from the source. i.e. CD or
Tuner etc. The volume control can be operated
manually at any time, whether the OBH-22 is powered or
not, but without power only Line 1 can be utilised.
CREEK OBH-22 SPECIFICATION
INPUT IMPEDANCE
< 20 k
Ω
Ω
OUTPUT IMPEDANCE
20 k
Ω
Ω
SEPARATION
> 80 dB's @ 1kHz
ATTENUATION
0 - 90 dB's
INPUTS
3 Stereo pairs, inc Tape
OUPUTS
2 Stereo pairs, 1 fixed, 1 variable
RELAY MUTING FACTOR
> 90dB's
POWER REQUIREMENTS
24v @ 60 mA
POWER CONSUMPTION
2W max
DC CONNECTOR TYPE
2.1 mm female DC jack
INPUT & MUTE INDICATION
2 LED
SIZE
150 x 100 x 66 mm
6” x 4” x 2 1/2”
WEIGHT
610 g, 1.3 lb
Creek Audio Ltd reserves the right to change or modify
the specification of its products without prior warning.
Creek Audio Ltd
12 Avebury Court, Mark Road, Hemel Hempstead HP2 7TA, England
Telephone: +44 (0) 1442 260146 Fax: +44 (0) 870 622 0846
E-mail: [email protected]
Web: www.creekaudio.com
Designed and made in the UK.
Creek OBH-22
Operating
Instructions
SRC2 Remote
Handset
