Symetrix 528E Single Channel Voice Processor Microphone Preamp - USED

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Sale price$549.99 Regular price$829.99


528E is a complete, self-contained voice processor, that performs six separate functions. In addition to a microphone preamp, the unit performs de-essing, compression/limiting (with sidechain input), downward expansion, voice symmetry alignment and the signal can be sculpted with parametric EQ. All six processors may be used simultaneously, and although the unit is referred to as a "voice processor" it is perfectly suitable for any signal.

Each function features a full complement of controls in an easy-to-use layout. Separate LED meters monitor microphone gain and dynamics gain reduction functions. The 528E works with any professional microphone. The preamp's gain is variable up to 60dB, and 48-volt phantom power is provided for use with condenser microphones. The de-esser senses and regulates selectable high frequencies to reduce or eliminate annoying sibilance and "lip smacking".

The compressor/limiter maintains uniform levels while the downward expander eliminates "pumping," "breathing," and noise build up. Because it's program controlled, the unit's dynamic range processor responds quickly to transients. The three band parametric EQ performs both creative and corrective operations, with bandwidth variable from 1/3 octave to 4 octaves, 15 dB boost/cut, and overlapping frequency ranges. The voice symmetry switch of the 528E corrects for excessive positive or negative signal peaks of the human voice. A simple in/out switch controls this function.

Microphone preamplifier, voice processor/channel strip combination
Works with any microphone or line input


Includes a compressor/limiter, downward expander and voice symmetry alignment


Three band parametric equalizer, and seperate variable de-esser
Applications include broadcast announce microphones, voice-overs and music recording, high level sound reinforcement or public address/paging systems

• Single rack space classic analog channel strip. Applications: Broadcast, Studio, Podcasting, Installed Sound.
• Add warmth and color to your digital broadcasts & recordings.
• World renowned Symetrix sound quality, reliability and performance.
• Six (6) processes in one box: Mic Preamp, De-esser, Downward Expander, Compressor, 3-band EQ, and Voice Symmetry.
• Rear panel patch points allow re-ordering of processes or external effects inserts.


Number of Channels Single
Inputs 1 x XLR Microphone
1 x XLR Line
Each section of the unit has input and output points on 1/4" TRS unbalanced connectors
Outputs 1 x XLR
1 x 1/4" TRS phone
1 x 1/4" TRS unbalanced mic pre out
Frequency Response 20Hz to 20kHz (+0, -0.5dB) EQ out
Noise EIN: -126dBV
Gain Range 22dB to 60dB
Maximum Output Not specified by manufacturer
Input Impedance 10 kohm
Phantom Power +48V
Threshold Range -40 to +20dBu
Ratio 1:1 to 10:1
Attack Time Program dependent
Release Time Program dependent
Slope Program dependent
Sidechain Yes
Filter Type Three band parametric
Frequency Bands Low: 16Hz to 500Hz
Mid: 160Hz to 6.3kHz
High: 680Hz to 22kHz
Bandwidth 0.3 to 4 octaves, measured at maximum boost
Range (Boost/Cut) +/-15dB
Light Indication
Threshold Range Not applicable
Ratio Not applicable
Attack Time Not applicable
Threshold Range -30 to 0dBu
Frequency Range 800Hz to 8kHz
Gate Threshold Not applicable
Gate Rate Not applicable
Dimensions 19" x 7 1/4" x 1 3/4"
Weight 7.6 lbs
Specialties The 528E delivers the same processing power found in an entire recording studio signal chain
Packaging Info
Package Weight 8.3 lb
Box Dimensions (LxWxH) 23.25 x 14.25 x 2.35"

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