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KAHAYAN Proaudio 12K72 Mono Preamp

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Based on a classic 70's preamp

The 12k72 is a high class preamplifier. The main feature of this ‘module’ is a sound completely clear and transparent, with deep bass and an extremely natural treble.


The components used in manufacturing come essentially from the same manufacturers that supplied the ones used originally, reproducing and expanding the benefits of these. Everything inside this preamplifier is high quality: the wires, rotary switches, capacitors, resistors and connectors.


The benefits that this module offers, besides the already known sound merits, are:

• Iron Rack 1 unit format.

• Two mic / line independent preamp working in pure class A

• Using discrete technology (without IC's).

• Gain control in steps of 5dB.

• Output Level Control in steps of 1dB.

• Phantom power 48v with pilot light.

• Phase reverse switch.

• Microphone / Line Switch (Also useful in line mode for mastering or mixbus processor).

• Inputs and outputs: balanced and unbalanced (XLR and jack)

• External high quality Power supply.

• Front input jack for connecting high impedance electric instruments (guitar, bass, synth, etc.).

• Iron rack format of 1 unit

• mic / line preamp working in pure class A

• Using discrete technology (no IC`s)

• Gain control in steps of 5dB

• Output level control by steps of 1dB

• 48v phantom power with pilot light

• Phase-change switch

• Mic / Line Selection Switch

• Balanced and unbalanced Input Output (XLR y jack)

• Inputs: Mic Input: 1200Ω, 3 pin XLR bal. Instrument Input: 10KΩ, stereo jack bal.

• Outputs: Balanced: 3 pin XLR 8

• Unbalanced: Jack Mono. The signal is taken before the output transformer giving another colour to the balanced output

• Max. Gain: XLR input: 65 db

• Output control: Key steps of 12 positions adjustable in 1dB steps (the typical fader function)

• Distorsion: To 22 dbu of output, 40hz less than 0.1%,1Khz less than 0.03% 10 Khz less than 0.05%

• POWER SUPPLY: 220v. 50hz. 110v. 60hz

The manufacturer reserves the right to change the technical specification of the product without prior notice.


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