With modern amplifiers expected to cater for so many new devices, the Phono capability has frequently been one of the features to disappear. Creek Audio has always been aware of the benefits of vinyl – that is why the company continues to provide a number of Phono stage options.
The most recent addition to the Creek range is the OBH-15, combining moving magnet and moving coil Phono pre-amplifiers, into one diminutive chassis. Seriously impressive and offering audiophile performance, the new OBH-15 will augment any system.
The OBH-15 Phono pre-amp can now drive longer cables, due to its low output impedance. It has combined the high quality discrete semiconductor circuitry of the OBH-8 and OBH-9 input and gain stages, and added improved open loop gain by cascoding them, prior to the selector switch and combined passive RIAA circuit. Separate Burr-Brown professional grade low-noise op-amps are used for each channel, to buffer the output signal and provide a very low impedance drive to any pre-amp or integrated amplifier. The OBH-15 can switch from moving magnet to moving coil cartridges, via a simple push button on the rear panel. As it has two input circuits, optimised for each type of cartridge it allows for the connection of two turntables. A high gain MC version, for low output MC cartridges, is available to order.
The OBH-15 has a built-in high performance power supply regulator circuit which makes it immune from power supply fluctuations so, it can be used with the un-regulated OBH-1, 6 Watt power supply; but it will sound better with the regulated 12 Watt OBH-2, which is available as an option.
Internally, the OBH-15 has built to the highest standards using a glass-fibre double sided, plated through hole PCB and very high-grade components. The OBH-15 looks the part too! Designed to complement the Creek range of amplifiers, tuners and CD players, the new OBH range features an impressive 4mm thick solid aluminium front panel in a silver finish. The remainder of the 150mm deep extruded aluminium case is painted black, so the product all but disappears.
Specifications:
Gain MM 37 dB MC 56dB
Frequency Response 20 Hz to 20 kHz ± 0.25 dB
Signal to Noise Ratio MM - 83 dB MC - 75 dB
Total Harmonic Distortion MM < 0.03% MC < 0.05%
R1AA deviation ± 0.5%
Output 250 mV
Output Impedance 100 Ohm
Input sensitivity / impedance MM 3.5 mV / 47K Ohm / 220pF
MC 0.5 mV / 1000 Ohm / 3300 pF
Overload margin MM 22 dB MC 20 dB
Mates well with cartridges MM 2.5 mV - 5 mV output, MC 0.5 mV - 1 mV output
Power supply voltage 24V DC / 30 mA
Weight 3Kg
Size L/W/H 150 x 100 x 66mm |
