The Crimson "E" Series Power Amplifiers
Crimson CS640E-III and CS620E-III power amplifiers have an uncanny way of reproducing music with a startling sense of reality and solidity. A way of presenting the recording the way it was intended in its full, dynamic glory.
As with all our products, we design these amplifiers by ear, listening to every single component, every change in circuit design at every step along the way. Our objective is to deliver the impression of real, live musical instruments in your home.
We believe that if we have done our job correctly, you will forget that you are listening to a power amplifier at all.
Crimson Power Amplifier Design Features
- Internal wiring layout designed to minimize magnetically induced distortion at the input.
- Slit-foil type reservoir capacitors and bipolar output devices for optimum audio performance.
- Toroidal transformers wound for low impedance rather than maximum throughput power; this yields high short-term power capability and greater dynamics.
- Exceptional thermal stability.
- Extremely effective, yet sonically invisible, protection circuits.
- Unilateral response; extraneous signals are not "seen" by the amplifier's input.
- Extremely linear response even before negative feedback is applied.
- Very high slew rate to prevent distortion at high frequencies, even at high input levels.
- No premature overload of output stages, even under "difficult" loads.
Crimson CS640E-III Mono Power Amplifiers
The CS640E-III Mono Power Amplifier features twin toroidal power transformers as well as dual bridge rectifiers in the power supply section, whilst the power amplifier module utilizes dual complimentary pairs of high current bipolar output devices. The CS640s have a signal input and output to allow daisy-chaining for passive bi or tri-amping.
- Operation: Mono, Solid State, Class B
- Dimensions (mm): height: 110, width: 90, depth: 360
- Signal Input: One Single-Ended RCA Phono Socket per channel
- Signal Output: One Single-Ended RCA Phono Socket per channel
- Speaker Outputs: 4mm Banana Sockets, two pairs per channel
- Input Impedance at 1kHz: 20kΩ
- Rated Output Power: 175 watts/channel @ 8Ω, 250 watts/channel @ 4Ω
- Output Impedance @ 1kHz: 0.1Ω
- Rated Total Harmonic Distortion: 0.01%
Crimson CS640E-III Mono Power Amplifier Rear Panel
Crimson CS620E-III Stereo Power Amplifier
The CS620E-III Stereo Power Amplifier employs an inverter circuit which allows for bridge-mode operation (with a specially terminated input cable) as a mono power amplifier using all of the stored energy in the power supply.
- Operation: Stereo, Solid State, Class B
- Dimension (mm): height: 110, width: 90, depth: 360
- Signal Input: Single-Ended RCA Phono Sockets, one pair
- Speaker Output: 4mm Banana Sockets, one pair per channel
- Input Impedance at 1kHz: 20kΩ
- Rated Output Power: 50 watts/channel @ 8Ω, 75 watts/channel @ 4Ω
- Output Impedance @ 1kHz: 0.1Ω
- Rated Total Harmonic Distortion: 0.01%
Crimson CS620E-III Stereo Power Amplifier Rear Panel
© 2013 Crimson Products Ltd.
