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Drawmer DS404 Quad Noise Gate

BH #DRDS404 • MFR #DS404
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Drawmer DS404 Quad Noise Gate
Key Features
  • Four Channels of DS201 Noise Gating
  • Frequency-Selective Gating: HPF & LPF
  • Internal, External Key plus Key Listen
  • Hard and Soft Gating
The DS201 has become an industry-standard in noise-gating, and now Drawmer introduces the DS404, a four-channel version of the venerable noise gate with all of the features of the original, including multiple key sources (internal, external, and Key Listen), program adaptive circuitry, and hard or soft gate selection. Ultrafast response times and a stable triggering circuit ensure absolute elimination of pesky chattering around the threshold, and the DS404 performs ideally across a range of sources, from drums and percussion, to vocals, pianos, and complete mixes.
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Drawmer DS404 Overview

The DS201 has become an industry-standard in noise-gating, and now Drawmer introduces the DS404, a four-channel version of the venerable noise gate with all of the features of the original, including multiple key sources (internal, external, and Key Listen), program adaptive circuitry, and hard or soft gate selection. Ultrafast response times and a stable triggering circuit ensure absolute elimination of pesky chattering around the threshold, and the DS404 performs ideally across a range of sources, from drums and percussion, to vocals, pianos, and complete mixes.

Like the DS201, the DS404 features typical threshold, release, and attenuation controls as well as a chain linking option for control of threshold and envelope characteristics across multiple channels from a single master channel. The onboard high- and low-pass filters allow for frequency-selective gating, letting you gate out unwanted frequencies without cutting out an entire sound. The DS404 includes an AC power cord and a globally compatible internal PSU with user selectable voltage, so you can get to work right away, wherever you are.

Hard and Soft Gating
Each channel of the DS404 can be operated as a hard or soft gate, providing very different characteristics. Two colored LEDs clearly indicate mode status. In the HARD mode the DS404 offers ultra-fast response time, stable triggering with complete freedom from chatter around threshold, and a specialized release contour, which is ideally suited to drums and other percussive material.

In the soft mode the DS404 becomes a versatile expander capable of handling vocals and sub mixes. Drawmer's unique program adaptive circuitry is used to optimize the attack time and ratio as well has having some effect on the manual release setting. A more gentle release characteristic is utilized to complement the soft gate.

Chain Linking
Operating the Link control switches the channel on the right to slave operation, where its gating mode, threshold, and envelope characteristics are controlled by the master (left) channel. Any adjacent three channels or two stereo pairs can be linked in this way for use in any conceivable situation where linking may be required.
Key Listen
When this switch is set to Key Listen, the effect of the key filters on the program material is heard at the output. In normal operation, the Gate position is selected; the filters only affect the way the DS404 responds to the incoming signals, they do not have a direct effect on the output signal. The Bypass position routes the input signal to the output with no processing.
Note:
It is possible to leave the switch in the Key Listen position in order to use the DS404 as a simple filter, rather than a gate.

Drawmer DS404 Specs

General
Input Impedance
20 Kilohms
Output Impedance
50 Ohms
Maximum Input Level
+21 dBu
Maximum Output Level
+21 dBu
Frequency Range
<10 Hz to 22 kHz (-1 dB)
Noise Floor
-90 dB (or -20 dB)
Noise
-99 dB (A-Weighted)
Distortion (THD)
<0.04% (Gate Open with +4 dBu Input)
Inputs / Outputs
Audio I/O
4x XLR 3-Pin Line Input
4x XLR 3-Pin Line Output
4x 1/4" TRS Input (Key Input)
Power
Power Source
AC Input (Built-In)
Power Consumption
15 W
AC Input Power
115 / 230 VAC, 50/60 Hz (User Selected)
Environmental
Certifications
CE
Physical
Color
White and Black
Material of Construction
Metal
Packaging Info
Package Weight
7.645 lb
Box Dimensions (LxWxH)
22.2 x 15 x 4.5"

Drawmer DS404 Reviews

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