Dual Channel Instrument Preamp
This is a single-ended, high input impedance, discrete audio pre-amp designed for high impedance, unbalanced outputs such as: guitar, bass guitar, and electronic keyboards. Just as a low impedance, balanced pre-amp is needed for use with microphones, a pre-amplifier design for unbalanced high impedance instruments is also required. The KGB Series contains high voltage, discrete op-amps with superb quality balanced output transformers made by Cinemag, Inc. The KGB-II is a two-channel, solid state unit that allows use of both channels for stereo recordings or live performances. This makes a good marriage with stereo out instruments like keyboards or stereo guitar pickups. And for guitarists and bass players, there is the added freedom of swapping between two instruments in a live performance, simply by picking up the other bass/guitar and start playing with no delay between songs.
GENERAL FEATURES: – All Metal Chassis – Milled Aluminum Knobs – Balanced XLR Gold Pin Neutrik Outputs – Switchcraft 1/4″ Input Jacks – Bipolar Electrolytic Capacitors – 1% Metal Resistors – Blue Led Power Indicator – 4 Rubber Feet – Heat Vents
KGB-II Features: – Two Discrete Inputs with Thru – Gain Select Switches for each channel – High/Low – Phase Reverse Switch for each channel – Gain Lift Switch – External Power Transformer for a very low Noise Floor.
APPLICATIONS:– Output to Line-In to FOH or Stage Monitors.– Output to Line-In on a Recording Console.– Output to Input of Digital Audio Converters.– Output to Power Amplifiers.– Both devices provide a Balanced, Line-Level +4db Output, which allows for bypass of the typical DI, Microphone Preamplifier and other input stages.
Single Channel Instrument Preamp with E.Q.
KGB 1tf Features:– Single Discrete Input with Through socket – High/Low Gain Select Switch – Phase Reverse Switch – Ground Lift Switch – External Power Transformer for a very low Noise Floor – Three band fixed frequency equaliser with 12db cut/boost, High/Mid/Low.
S/N: Better than 90db (shorted input)
Output: Xfmr Balanced +4 @ 600 ohms
Power: 20VAC (rated) 22-27VAC (unloaded)
External, +/-24VDC Internal
Gain: Low = 70db, High = 90db (2Khz source @.775V)
Gain: Low = 35db, High = 60db (2Khz source @
Sensitivity: Lower than .09mv