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1.0
LCPQ 4040
1.1 Overview
The LCPQ 4040 is a transformer balanced, high performance all-discrete equalizer
with four passive RLC sections in cascade configuration.
Each band has a variable level control ranging from -12dB to +12dB. The four bands
of equalization offer selectable Shelving/ Bell on the first and fourth band and
selectable HiQ/ LowQ on the second and third band.
Each band can be independently bypassed. When an EQ band is not engaged, the
audio signal still travels through the transformers and the discrete circuit but not
through the RLC circuit and thus the unit can be used as a high quality unity gain line
amp. In addition to the individual bypass, the unit employs a true bypass relay system,
where the input signal is connected directly to the output. When the unit is not
powered (or in situations where the power accidentally goes down), the bypass relay
system is automatically activated and therefore the signal will not disappear.
The LCPQ 4040 features Carnhill high-level audio signal input and output
transformers and a combination of four Carnhill and custom made tapped inductors
(5% tolerance) that were chosen after extended listening tests and measurements.
The unit consists of Grayhill rotary stepped switches for frequency selection, plastic
conductive potentiometers (10% tolerance) for boosting/cutting, Wima polypropylene
(low tolerance) film capacitors in the RLC path, Panasonic audio grade electrolytic
capacitors in the active circuit and Neutrik connectors for the audio and power
connections.
Each unit is hand-built and hand-wired. All the components are chosen and tested
thoroughly for best performance, musicality and long-term reliability.
1.2 Features
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Fully discrete (transistor) circuit
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Transformer (Carnhill) balanced input and output
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Carnhill and custom made tapped inductors
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Thirty four selectable frequencies
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12dB of Gain/ Attenuation per band
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Selectable Shelving/ Bell on Band1 and Band4
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Selectable HiQ/ LowQ on Band2 and Band3
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Individual bypass on each band
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True bypass relay system
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High quality Neutrik XLR connectors
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Low components tolerance for stereo configuration
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Hand-built and hand-wired
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3-year limited warranty
Summary of Contents for LCPQ 4040
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