Chepman 1073_1U – 19” 1U is a version of the microphone (Class A) preamp 1073 with an equalizer. It has a well-known characteristic sound with a harmoniously saturated bottom, elegant resonant high and focused midrange frequencies. Designed and assembled manually according to original specifications: PCB layouts, connectors, ELMA and Blore Edwards switches. Tested with high quality standards. Only high-quality components.

• Frequency Response

10–45000 Hz +/-3dB

• 3-band equalizer:

High Frequency: +/-16dB shelving, fixed frequency 12kHz
Low Frequency: +/-16dB shelving, switchable frequencies: f 35Hz, 60Hz, 110Hz, 220Hz

• Mid-Range:

+/-18dB, fixed 'Q', selectable frequencies: 0.36kHz, 0.7kHz, 1.6kHz, 3.2kHz, 4.8kHz, 7.2 kHz

• High Pass filter with adjustable cutoff frequency of

50, 80, 160 and 300Hz, 18dB/oct

• Input impedance of the microphone input (Mic Input Impedance) 300/1200 Ohms
• Line Input Impedance 1200 Ohms
• Input Impedance D.I. Input

150 kOhms

• Output Impedance

65 Ohm

• Maximum Output Level

+27dBu @ 600Ω

• Gain, dB

0 to 80 dB

• External power supply
• 24VDC/120mA
• Dimensions

482 x 44.5 x 230 mm

• Weight

4.6kg

• 1073B - Desktop, microphone preamp, Hi Z instr. - € 880.00

• 1073BH - Desktop, Microphone Preamp,HF, external power supply (included) - € 946.00

• 1073H - REC, 1U, 1 channel, D.I, High-pass filter, external power supply (24 V power supply) - € 1000,00

• 1073HD - REC, 1U, 2 channels, D.I, High-pass filter, external power supply (24 V power supply) - € 1900.00

• 1073 - REC, 1U, 1 channel, Microphone and Line input, D.I, High-pass filter, 3-band equalizer, External power supply (24 V power supply) - $ 2144.00

• 1073D - REC, 2U, 2 channel, Microphone and Line input, D.I, High-pass filter, 3-band Equalizer, External power supply (24 V power supply) - $ 3980,00

The external power supply allows you to get rid of the leads and the AC background. In addition, the removal of the power supply unit, as a source of strong interference, outside the rack rack improves the overall signal-to-noise ratio in the sound path.

Chepman 1073 is the best microphone preamp for recording voice, guitars, bass, wind instruments, synthesizers, etc. It gives the necessary density and filling, which allows the recorded material to fit well into any mix with minimal editing or without it at all. Class A makes the sound structure more musical and allows better and more accurate use of computer and hardware processing. The passive high-pass filter on the inductor delicately cuts off the excess bottom and does not distort the signal. The three-band equalizer covers the entire sound range, and the frequencies of the low and medium frequency regulators are selected taking into account decades of global studio practice. It sounds very musical, analog in the best sense of the word.

Chapman 1073 microphone preamplifier has shown excellent results both in studio work and in the process of live performances by various musicians on the stage of the Novosibirsk State Philharmonic.
Dense, formed, fundamental, recognizable — these are not all the epithets that come to mind about the sound of this device!
Vocals recorded with its use will easily find "their place" even in the densest mix, will be the very "cherry on the cake" of your composition.

Sound Engineer of the Novosibirsk State Philharmonic

Mikhail Lemeshko