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Creek - OBH-21mk2 - Headphone Amplifier

Creek - OBH-21mk2 - Headphone Amplifier 

Creek Audio has been making headphone amplifiers since 1993 and therefore understands what is needed to make them sound good. The OBH-21 mk2 is the latest in the long history, being small and very stylish. Designed to complement the Creek full sized range, it has an impressive solid aluminium front panel with either a silver or black finish. Its housed in a custom black metal case is fitted with turned metal disc feet and sound absorbing cushioned feet.

The OBH-21mk2 is essentially a very high quality miniature integrated amplifier, designed specifically to drive two pairs of low impedance headphones simultaneously from a line level source, such as a CD player, DAC, or amplifier without headphone output. It can even drive demanding 8 Ohm headphone if called upon to do so.  Unusually, it is also designed to act as a single input high quality pre-amplifier, if required.  Its output level is controlled by an ‘audiophile quality’ ALPS 27mm Blue Velvet volume control on the front panel and by user adjustable gain setting switches on the bottom of the case.

The OBH-21mk2 has three pairs of stereo RCA sockets on the rear panel for Line level input, looped Line level output, and a variable pre-amp output, whose gain can be set, independently from the headphone gain for the greatest flexibility.


Output Power
        > 100mW / 8 Ohms
        > 160mW / 16 Ohms
        > 200mW / 33 Ohms
        > 210mW / 68 Ohms

Headphone Impedance
        8 to 1k Ohm

Output Impedance
        1 Ohms

Input Impedance
        > 7 k Ohms

Frequency Response
        10 Hz to 50 kHz

THD Headphone Out
        < 0.002% from 20 Hz to 20 kHz at 0.5V into 68 Ohms

SNR Headphone Out
        116dBA ref 1V, 107dBA at 12.5dB gain

THD Pre-Amp Out
        < 0.0006% from 20 Hz to 20 kHz

Cross Talk Line Out
        > -80dB, 10Hz – 20 kHz Line out

Crosstalk Headphone Out
        > -60dB headphone output – 33 Ohm

Gain Settings
        0dB, 6dB, 10dB and 12.5dB

Power Consumption
        < 6 Watts at max power
        < 0.5 Watts standby

Power Supply
        24V DC 12 Watts max

Size W/H/D
        95mm x 60mm x 180mm
        7" x 3.75" x 2.25"

        630 grams
        22 ounces


        2 Year Limited Warranty

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