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Find great deals for Aphex USA Compellor A Compressor Leveler Limiter Rackmount. Shop with confidence on eBay!. The A delivers “intelligent” compressor action, leveling and peak limiting simultaneously. It can be used to solve audio level problems and improve audio. Great comressor/limiter unit, works well in the studio and live. APHEX COMPELLOR A RACK COMPRESSOR LIMITER LEVELER BROADCAST AUDIOFully.

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No other product can match the performance of the D. When you listen, you know the levels are made more even, but you don’t perceive the levels are shifting.

When you specify a Compellor, you know it will do its job flawlessly and give you peace of mind. In Stereo mode, the user can choose between linking only the leveling control signals or linking both the compression and leveling signals.

The front panel metering system displays input level, output level or gain reduction levels. There is no rolloff of the lows, and the highs only roll off a bit at the highest compression settings. No Longer Available Update Location close. It combines compression, limiting, leveling, and gating, and those functions are all controlled in an interconnected way by an aphec “program adaptive” system. Overview Tech Specs Gallery Downloads. I think the A version is discontinued, only available used.

By going beyond conventional design ideas, the D provides audio processing with unprecedented sound transparency, yet is exceedingly effective at controlling levels.

You might say a steady, level signal doesn’t need any compression, but the processed signal is much more “present” and “energetic” sounding 320q the dry signal. The tone is completely transparent.

All potentiometers are detented for accurate resetting of controls. You don’t hear pumping or other audio artifacts, just natural sound that is evenly consistent in loudness.

D Compellor | Products for Professional Audio, Recording, Broadcast, Audio Applications | Aphex

Its unique circuit design actually enhances transient qualities, thus making even heavy processing undetectable. So right at the outset, this unit is capable of far more advanced dynamics control than most other comps, but it can also be harder to use since the controls are unfamiliar and comlellor.


Enter new zip code to refresh estimated delivery time. Playing irregularly–a few notes, then a rest, then a few more notes–also caused the automatic sensors to work overtime, which resulted in audible artifacts. The stated purpose of this processor is to normalize match the output levels of low-level and high-level incoming signals.

In mono mode, unit provides two completely independent channels of processing. Update Unrecognized Zip Code.

Some Compellors have literally been in hour use in the same rack for a decade or longer!

Extremely easy to operate, the user only needs to set the Drive level to generate the desired amount of processing, set the Process Balance control between Leveling and Compression and adjust the Output level for unity gain.

The A provides the option of Dual Mono or Stereo operation.

The D can act as two independent mono processors or one linked stereo processor, which is selectable on the front panel. Not specified by manufacturer. It can also take a sloppy instrumental or vocal track and regulate it all cimpellor the same level. Aphxe is a two-channel rackmount unit, and 30a quite different from the other comps I’ve reviewed. RJ connector on the rear panel facilitates remote relay bypass of the unit A Silence Gate feature detects significant gaps in the program material and freezes compellof processing, thus preventing noise “swell” or “build-up”, a condition commonly audible in other automatic gain control devices.

Be the first to review this item. The A delivers “intelligent” compressor action, leveling and peak limiting simultaneously. Patented control circuits include analog computers that continuously analyze the input signal, and vary the control characteristics to provide for virtually undetectable operation, regardless of the dynamics of the program. It can be used to solve audio level problems and improve audio signals in the broadcast or recording studio, tape duplication house, film-dubbing studio or in live sound applications.

So overall my impression is that this comp is a fantastic tool, which really does offer some valuable processing power and a super clean sound; but it is not well suited for use in any rig where the dynamics and signal peaks can vary wildly. So it’s ideally suited to broadcast work.


It will try very hard to normalize an unruly signal, resulting in the noise level raising and dropping constantly. Reviews 0 Write a review. With some careful experimentation I was eventually able to find a setting that worked decently for the hard-to-control bass with a minimum of artifacts, but it took some time.

Extensive compressor reviews and FAQ. See any errors on this page? It doesn’t generate any noise of its own, although like all compressors it can amplify existing noise at higher settings. I also noted that the limiter was not so useful, it only kicked in on the most extreme peaks.

The D’s limiter acts on peaks that shoot beyond average program levels so they are easy to handle by any analog or digital recording system.

Aphex Compellor 320a Dual Compressor Limiter Expander

Write a review fvzqbyxqudwyaxxu. The Silence Gate immediately releases when the program material resumes.

When the analog input is used, the digital output contains the D’s processing. The D’s Frequency Discriminate Leveler section, with the Dynamic Verification Gate and the Silence Gate, slowly adjusts the volume level of an audio stream with very complex algorithms that hide its work. When the digital input is used, the analog output contains the D’s processing, properly leveled.

The patented technologies within the D are totally xompellor. Whereas with the more even-output bass, with steadier playing, it was fairly easy to find a clean, natural-sounding, noiseless setting. With the passive, this comp really brought out the sound in a punchy, articulate way, with nice clear harmonics, and no noticeable noise or artifacts. I used aphdx with two basses: The A is then ready to provide complete dynamic control – smooth, inaudible compression, increased system gain, desired program density and the freedom from constant “gain riding” – all performed automatically.

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