Creek Audio Car Amplifier OBH 15 User Manual

SPECIFICATION  
MOVING MAGNET  
GAIN  
FREQUENCY RESPONSE  
SIGNAL TO NOISE RATIO  
TOTAL HARMONIC DISTORTION  
RIAA DEVIATION  
Creek OBH 15  
Phono Pre-Amplifier  
37dB  
20 Hz to 20 kHz +/- 0.25 dB  
-83 dB  
< 0.03%  
+/- 0.5%  
250 mV  
OUTPUT  
OUTPUT IMPEDANCE  
INPUT SENSITIVITY/IMPEDANCE  
OVERLOAD MARGIN  
MATES WELL WITH MM CARTRIDGES  
< 100 W  
3.5 mV / 47 kW/220 pF  
22 dB  
2.5 mV - 5 mV output  
MOVING COIL  
GAIN  
56 dB  
FREQUENCY RESPONSE  
SIGNAL TO NOISE RATIO  
TOTAL HARMONIC DISTORTION  
RIAA DEVIATION  
20 Hz to 20 kHz +/- 0.25 dB  
- 75 dB  
< 0.05%  
+/- 0.5%  
250 mV  
< 100 W  
0.5 mV / 1000 W/3300 pF  
20 dB  
0.5 mV - 1 mV output  
150 x 100 x 66 mm  
24V DC 30 mA  
Operating  
Instructions  
OUTPUT  
OUTPUT IMPEDANCE  
INPUT SENSITIVITY/IMPEDANCE  
OVERLOAD MARGIN  
MATES WELL WITH MC CARTRIDGES  
DIMENSIONS  
Thank you for purchasing the OBH 15 phono pre-amplifier. You are  
now in possession of a state-of-the-art product. The functions and  
operation of the OBH 15 are extremely simple. The following notes  
are provided to explain all aspects of its design and use.  
POWER SUPPLY VOLTAGE  
WARRANTY  
If within two years of the purchase date your OBH product proves to  
be defective for any reason other than accident, misuse, neglect,  
unauthorised modification or fair wear and tear, Creek Audio Ltd  
will, at its discretion, replace the faulty parts without charge for  
labour or return carriage within the U.K.This warranty is valid only  
within the U.K. and given in addition to statutory rights. Service  
enquiries outside the U.K. should be addressed first to the  
supplying dealer and or Creek distributor/importer. Warranties  
granted in these countries are entirely at the discretion of the  
distributor.  
The function of the OBH 15 is to boost the level and correct the  
frequency response of a low level signal coming from a phono pick-  
up on a conventional turntable.  
The signal required by most modern amplifiers is described as  
being 'LINE' level, which is, in technical terms, between 200 and  
500 milli Volts with a flat frequency response.  
Unless your amplifier has a specific 'Phono' or Disc input, the level  
will be too low and the frequency response will be wrong. The  
OBH 15 is designed to boost the signal and introduce an R.I.A.A.  
frequency response characteristic.  
Creek Audio Limited  
12 Avebury Ct, Mark Road, Hemel Hempstead HP2 7TA England  
Telephone: +44 (0) 1442 260146 Fax: +44 (0) 870 622 0846  
 

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