Used Symetrix 501 Pro Sound Effect

Used Symetrix 501 Peak-RMS Compressor/Limiter

Overview

The Symetrix 501 is a classic single-channel Peak-RMS compressor/limiter widely used in studios, broadcast environments, and live sound systems. Known for its transparent compression and flexible control set, the 501 offers both peak and RMS detection, making it suitable for everything from subtle dynamic control to firm limiting. Built in the USA, this rackmount unit has long been respected for its reliability and clean audio performance.

Features

• Single-channel Peak-RMS compressor/limiter
• Selectable Peak or RMS detection
• Adjustable threshold, ratio, attack, and release controls
• Automatic or manual attack/release operation
• Separate peak limiter section with threshold and output gain
• Gain reduction LED meter
• Side-chain insert for external EQ or processing
• Balanced connections
• Made in the USA

Condition

This unit is in Good condition and functions as it should.

• Tested and fully operational
• Rack ears show noticeable wear and damage, including enlarged/chewed mounting holes
• Cosmetic scuffs and scratches consistent with rack use
• Power switch and all controls operate properly
• No rack screws included

Store Policies

• All items are tested before listing and again before shipping.
• Orders typically ship next business day.
• Shipping is available to the continental U.S. only.
• We do not accept trades on shipped items.
• Returns are accepted within 48 hours of delivery. The buyer covers return shipping, and a 20% restocking fee applies. If you have any questions before buying, feel free to message us—we’re happy to help.