Used Crest Audio CPX 2600 / CPX 1500 / CPX 900
Used Crest Audio CPX 2600 / CPX 1500 / CPX 900 are a series of affordable power amplifiers designed for the MI and DJ markets, featuring built-in subwoofer crossovers, Gain Comparator Limiting circuitry and Speakon outputs. These second-hand amplifiers are well suited to mobile sound systems, project studios and live musicians. Browse the available used listings below to find the CPX model that fits your rig.
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Crest Audio CPX 2600 / CPX 1500 / CPX 900 specifications
| Brand | Crest Audio |
| Segment | Audio |
About the Crest Audio CPX 2600 / CPX 1500 / CPX 900
The Crest Audio CPX 2600 / CPX 1500 / CPX 900 series delivers four rugged, over-built power amplifier designs aimed at mobile sound, project studios and musicians. Each amplifier includes the exclusive Gain Comparator Limiting (GCL) system, which senses the onset of clipping and dynamically reduces gain for a few milliseconds, allowing the amplifier to be driven to its maximum without audible distortion. A rear-panel GCL defeat switch is provided. A built-in crossover operates at 150 Hz with a 24 dB per octave Linkwitz-Riley filter tuned for subwoofers, plus an 18 dB per octave defeatable low-cut filter at 80 Hz with individual in/out switching. Input connections include barrier strip, female XLR and quarter-inch jacks, while outputs feature Speakon connectors for channels A and B and bridged mono, plus binding posts. A mode selector covers stereo and bridged-mono operation. Cooling is handled by a two-speed DC fan and Crest Audio's V-shaped Turbo Cooling airway, which concentrates airflow for maximum heat transfer from the output devices.
Crest Audio CPX 2600 / CPX 1500 / CPX 900 — buyer FAQs
What is the Crest Audio CPX 2600 / CPX 1500 / CPX 900 series designed for?
The CPX series is a line of power amplifiers aimed at the MI and DJ markets, built for mobile sound systems, project studios and live musicians. Each model in the series is described as over-built and over-engineered for reliability, with the practical feature set concentrated on functionality rather than cosmetic extras.
Who makes the CPX 2600 / CPX 1500 / CPX 900, and where does it sit in their range?
Crest Audio is an American professional audio brand with a background in touring sound, known for power amplifiers and mixing consoles for live and installed applications. It has been part of Peavey Electronics since 1999. The CPX series represents the brand's more affordable, MI and DJ-focused amplifier tier, positioned below Crest Audio's heavier touring amp lines.
What is the Gain Comparator Limiting system on the CPX series and how does it work?
Gain Comparator Limiting (GCL) is a Crest Audio circuit that detects the onset of clipping and dynamically reduces gain for a few milliseconds, letting the amplifier be driven to its maximum output without producing audible distortion. A rear-panel GCL defeat switch is included on each model so the feature can be bypassed when not needed.
What crossover and filter options are built into the CPX amplifiers?
Each CPX amplifier includes a built-in 150 Hz crossover using a 24 dB per octave Linkwitz-Riley filter tuned for subwoofer use, with individual switching in and out of the crossover. A separate 18 dB per octave low-cut filter at 80 Hz is also fitted and can be defeated independently. Quarter-inch daisy-chain outputs allow the crossover signal to be passed on to additional amplifiers.
What should I check when buying a second-hand CPX 2600, CPX 1500 or CPX 900?
Confirm which model in the series you are purchasing, as the CPX 900, CPX 1500 and CPX 2600 are separate units at different power levels. Check that all input connections (barrier strip, XLR, quarter-inch) and Speakon outputs for both channels and bridged mono are working, and verify that the two-speed cooling fan operates correctly. Listings on this page are sold used; each carries a 21-day warranty covering major functional faults, with full detail in the buying guide at https://www.10kused.com/used-av-equipment-guide/.
