Korena
Product detailSKU #1433516976083

A DesignsKGB-II Instrument Pre Amplifier

A Designs
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A Designs KGB-II Instrument Pre Amplifier
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Independent shopping perspective

The Korena take

Built to bring high-impedance, unbalanced instrument signals into a balanced studio path, the KGB-II is a single-channel solid-state preamp with two instrument inputs. Its discrete, high-voltage op-amp design feeds Cinemag transformer-balanced XLR outputs, while the two gain settings provide 35 dB or 60 dB. An all-metal enclosure, milled aluminum controls, rubber feet, and heat vents make it a focused piece of recording hardware for guitar, bass, and electronic keyboards.

A Designs KGB-II Instrument Pre Amplifier product detail
Product studyA Designs KGB-II Instrument Pre Amplifier

Strong match

Who this is for

  • Routing guitar, bass guitar, or electronic keyboard signals into a balanced recording setup.
  • Selecting between 35 dB and 60 dB gain for a high-impedance instrument source.

What matters in use

The specifications, translated

Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01

Xfmr Balanced +4 @ 600 ohms output

The output is transformer-balanced and specified at +4 into 600 ohms.

Detail 02

35 dB low gain / 60 dB high gain

Two gain positions let you choose between the unit’s stated low and high settings.

Detail 03

Better than 90 dB S/N with shorted input

The published signal-to-noise figure is better than 90 dB under that test condition.

Final check

Know before you order

  1. 01It is designed for high-impedance, unbalanced instrument signals and provides balanced XLR output.
  2. 02Power is specified as 20 VAC rated external power, with +/-24 VDC internally.

Product questions

Before you decide

Straight answers to the questions shoppers most often ask about this product.

01How many channels does the KGB-II have?

It is a single-channel preamp with dual high-impedance instrument inputs.

02Which instruments is it designed for?

It is designed for unbalanced, high-impedance signals from guitar, bass guitar, and electronic keyboards.

Reference

Full specifications

The complete catalog record, organized around the decisions musicians make when comparing gear.

2 detailsSound
Power
20VAC (rated) 22-27VAC (unloaded) External, +/-24VDC Internal
Sensitivity
Lower than .09mv
1 detailsConnections & power
Output
Xfmr Balanced +4 @ 600 ohms
2 detailsOther
S N
Better than 90dB (shorted input)
Gain
Low = 35dB, High = 60dB (2kHz source @ .09mv)