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Extracted text from creek obh 8 9 owners manual (Ocr-read)
Page 1
The output from the OBH-8/9 can be connected to most integrated and preamplifier's line
inputs via a regular Phono to Phono (RCA to RCA) stereo interconnect lead.
POWER SUPPLY REQUIREMENTS
In common with all electrical appliances, the OBH-8/9 requires a power source. The
requirement for the OBH-8/9 is for 24 Volts DC at 30 mill! Amps current, or higher. An
OBH-1 standard power supply, or OBH-2 high grade power supply, dedicated for the local
voltage and plug type, has been provided. It has a thin cable exiting from it, with a 2.1mm
positive centre pin DC power jack fitted on the other end. It should be connected to the
Phono amp via the DC inlet on its rear panel.
To operate the phono amp it is necessary to switch-on the unit by pushing the power button
on the front panel.
N.B. Due to the inherent muting circuitry in the OBH-8 & 9 the signal will take a few
seconds to be heard after the power is switched on. Keep the main amp's volume
control at minimum to avoid hearing any unpleasant noises during the on/off phase.
WIRING THE OBH-8 AND OBH-9
Rear of Amplifier
Note 1. The OBH should be placed away from transformer hum fields for the lowest
noise operation.
Note 2. It is also necessary for the OBH to be 'burned-in' for at least 24 hours
before its full sound quality potential can be realised.
Page 2
CREEK OBH-8 SPECIFICATION
GAIN 37 dB
FREQUENCY RESPONSE 20 Hz to 20 kHz ± 0.25 dB
SIGNAL TO NOISE RATIO -82dB
TOTAL HARMONIC DISTORTION < 0.05%
R1AA DEVIATION ± 0.25 dB
OUTPUT 250 mV
OUTPUT IMPEDANCE 750 Q
INPUT SENSITIVITY AND IMPEDANCE 3.5 mV/ 47 kQ / 220 pF
OVERLOAD MARGIN 22 dB
MATES WELL WITH CARTRIDGES WITH 1.5 mV to 5.0 mV output
DIMENSIONS 100 x 100x63 mm
POWER SUPPLY VOLTAGE 24V DC 30 mA
Supplied with an OBH-1 Standard Power Supply, 220-240V 50Hz or 110-120V 60Hz
CREEK OBH-8SE SPECIFICATION
GAIN 37 dB
FREQUENCY RESPONSE 20 Hz to 20 kHz ± 0.25 dB
SIGNAL TO NOISE RATIO -86dB
TOTAL HARMONIC DISTORTION < 0.03%
R1AA DEVIATION ± 0.1 dB
OUTPUT 250 mV
OUTPUT IMPEDANCE 7500
INPUT SENSITIVITY AND IMPEDANCE 3.5 mV/ 47 kQ / 220 pF
OVERLOAD MARGIN 25 dB
MATES WELL WITH CARTRIDGES WITH 1.5 mV to 5.0 mV output
DIMENSIONS 100 x 100 x 63 mm
POWER SUPPLY VOLTAGE 24V DC 30mA
Supplied with an OBH-2 High Grade Regulated Power Supply, 220-240V 50Hz or 110 -120V 60Hz
