Peavey The CEL-2a Compressor Limiter

Price List USD 388

Peavey The CEL-2a Compressor Limiter

The CEL-2a Compressor/Expander/Limiter is designed for use in all live performance and recording applications, and can be incorporated as either two independent compressors or one synched stereo compressor with true RMS summing. Voltage-controlled amplifier and RMS-integrated circuits maintain low distortion and excellent noise performance.

Features:

• Stereo or dual mono operation
• Switchable low cut filter on each channel
• Switchable de-esser on each channel
• 1/4 inch TRS insert capability
• Fully adjustable compressor/limiter/expander
• Full gain reduction metering
• Input/Output switchable meters
• Weight Unpacked: 7.50 lb(3.402 kg)
• Weight Packed: 10.00 lb(4.536 kg)
• Width Packed: 4.25"(10.795 cm)
• Height Packed: 22.75"(57.785 cm)
• Depth Packed: 12.5"(31.75 cm)

Spec Sheet

• CEL-2A Spec Sheet

Alesis Dual Compressor Limiter/Gate 3632

Price List Rp.2.520.000
Alesis Dual Compressor Limiter/Gate 3632
Intelligent compression and dynamics.
The 3632 Compressor is the follow-up to the 3630 Compressor™, the most popular dynamics processor ever made. The 3632 Compressor builds on the popular design and features of its predecessor by providing two independent, full-featured compressor/limiters in one compact rack. It delivers superb sonic quality for any application from studio recording to live sound or broadcast.

MANUAL OR AUTOMATIC
With the push of a button the 3632 Compressor’s attack and release times can be set to engage automatically depending on the source signal. In this mode, the 3632 applies an optimized amount of compression with no extremes. Want full manual control? Again, just push a button and you have free reign over the 3632’s comprehensive range of parameters. The 3632 Compressor can function as either two individual mono processors, or you can stereo-link them to provide true stereo compression.

GUARD YOUR SOUND
The 3632 Compressor’s Expander/Gate keeps unwanted noise out of your sound. When your signal falls below the threshold you’ve chosen, the Expander/Gate pushes low-level noise down or simply closes the gate depending on the parameters you’ve dialed in. Deny noise access to your audience or your mix!
At the heart of the 3632 Compressor is its VCA (voltage-controlled amplifier), which offers professional-grade performance in terms of distortion, noise, and temperature stability, making everything you hear smooth and consistent.

The 3632 Compressor’s sidechain function on each channel enables you to use it in external effects loops or in other common compressor applications such as ducking: use the sidechain function to trigger compression on a signal when you want it. A second, internal sidechain employs a switchable low-cut filter to help control pumping due to heavy low-frequency content. 

With intuitive control layout and bright LED meters that display gain reduction and input/output levels per channel, the 3632 Compressor will give you constant visual feedback. Professional compression is ultimately about the control and delivery of sound, and the 3632 Compressor will make you a master at both.

Key Features:

• Stereo compressor/expander/limiter/gate for complete dynamics management
• Minimized signal path for optimal sound quality
• Intelligent Knee for musical performance with soft and hard-knee envelopes
• Intelligent Ratio adjusts expansion based on input signal
• Intelligent Gain auto-adjusts output
• Adjustable attack and release time for manual control
• Couple switch for a one-touch selection between two mono channels and stereo-linked operation
• Sidechain send and return for use in an external effects loop
• Switchable low-cut filter minimizes audio-program pumping triggered by kick drum
• Gain-reduction LEDs and switchable input/output-level LED meters for visual monitoring of critical values
• Bypass switches on both channels

Includes:

• 3632 Compressor
• Power cable
• Quick start guide

Specification:

Function: 

Compressor/expander/gate

Number of Channels: 

         

Inputs: 

2x XLR, 2x 1/4" TRS, 2x 1/4" TS Return

Outputs: 

2x XLR, 2x 1/4" TRS, 2x 1/4" TS Send

Maximum Input Level: 

+21dBu

Compression Threshold: 

-40dB to +20dB

Compression Ratio: 

1:1 – Infinity:1

Attack Time: 

0.1 mSec to 150 mSec/20dB

Release Time: 

0.05 mSec to 5 Sec/20dB

Gate Threshold: 

Off to +15dB

Gate Ratio: 

1:1.2 to 1:8

Maximum Output Level: 

+21dBu

Make-up Gain: 

-20dB to +20dB

Frequency Response: 

20Hz to 20kHz, +0/-0.05dB

Dynamic Range: 

125dB

Noise: THD+N:

0.01% typical, 1kHz @ +4dBu

Power Requirements: 

95~120VAC/210~240VAC, 50/60Hz

Dimensions (WxDxH): 

19 x 7.7 x 1.75" (483 x 195 x 45mm)

Weight: 

6.8 lbs (3.1kg)

BBE MaxCom Dual Channel Compressor

Price List Rp.2.396.000
BBE MaxCom Dual Channel Compressor
Much more than a high-quality compressor/limiter, the BBE MaxCom Dual-Channel Compressor is the first signal processor of its kind to feature an onboard BBE Sonic Maximizer for enhanced clarity and definition. Both its compression and gating provide versatility and excellent sonic performance without producing undesirable processing artifacts. Includes 2 independent, full-featured compressor/limiters, with each channel having independent controls for Threshold, Compression Ratio, Attack Time, and Release Time. The stereo link allows for phase-coherent tracking of stereo signals and adjustment from the Channel One controls. Comprehensive metering is achieved via dual bar graph meters on each channel that indicate Input Level and Gain Reduction. Its intuitive design makes the BBE MaxCom easy to operate.

The BBE Process--"What it Is"
Loudspeakers have difficulty working with the electronic signals supplied by an amplifier. These difficulties cause such major phase and amplitude distortion that the sound reproduced by the speaker differs significantly from the sound produced by the original source.
In the past, these problems proved unsolvable and were thus relegated to a position of secondary importance in audio system design. However, phase and amplitude integrity is essential to accurate sound reproduction. Research shows that the information which the listener translates into the recognizable characteristics of a live performance are intimately tied into complex time and amplitude relationships between the fundamental and harmonic components of a given musical note or sound. These relationships define a sound's "sound".
When these complex relationships pass through a speaker, the proper order is lost. The higher frequencies are delayed. A lower frequency may reach the listener's ear first or perhaps simultaneously with that of a higher frequency. In some cases, the fundamental components may be so time-shifted that they reach the listener's ear ahead of some or all of the harmonic components.
This change in the phase and amplitude relationship on the harmonic and fundamental frequencies is technically called "envelope distortion." The listener perceives this loss of sound integrity in the reproduced sound as "muddy" and "smeared." In the extreme, it can become difficult to tell the difference between musical instruments, for example, an oboe and a clarinet.
BBE Sound, Inc. conducted extensive studies of numerous speaker systems over a ten year period. With this knowledge, it became possible to identify the characteristics of an ideal speaker and to distill the corrections necessary to return the fundamental and harmonic frequency structures to their correct order. While there are differences among various speaker designs in the magnitude of their correction, the overall pattern of correction needed is remarkably consistent. The BBE Process is so unique that 42 patents have been awarded by the U.S. Patent Office.
Features

• 2 channel compressor/expander unit with gate function
• BBE Sonic Maximizer adds clarity and definition
• Auto mode for easy setup
• Dual bar-graph meters for input level and gain reduction
• Stereo link for phase-coherent stereo compression
• Dynamically controlled, program adaptive gate for noiseless and seamless operation
• Peak limiter to protect from clipping
• Inputs and Outputs via balance XLR or unbalanced 1/4" jacks
• Key in and out via 1/4" TRS

MaxCom Dual-Channel Compressor Specifications:

• Frequency response: 20Hz-20kHz
• THD.: Less than .05%
• S/N ratio: More than 94dB
• Threshold: -40dBu to +20dBu
• Compression ratio: 1:1 to 11:1
• Attack time: 0.1-200ms
• Gate threshold: Off to +10dBu

Drawmer DL441 Quad Auto Compressor

Price List USD 1.112

Drawmer DL441 Quad Auto Compressor

The DL441 Quad Auto Compressor/Limiter captures four channels of Drawmer's innovative DL241 'Auto Compressor' in only 1U of rack space. The inclusion of new sophisticated 'automated' circuitry allows the engineer to precisely control both the dynamic range and 'absolute' peak level of the programme instantly, without sacrificing essential control parameters. This perfect balance of features makes the DL441 ideal for use in sound reinforcement and outside broadcast applications where an economy in rack space is essential. Each channel combines a fully professional 'Auto Attack/Release' Compressor with a variable threshold 'Peak Level' Limiter on the output providing a transparent 'endstop'. High resolution bar-graph displays on each channel allow gain reduction and output level to be viewed simultaneously, of particular importance in darkened concert hall or control room situations. 

Facilities available on the DL441 include:

• Compressor : The compressor section can be switched to provide either HARD or SOFT knee compression In both the HARD and SOFT modes a Ratio control is available. In the SOFT mode the ratio increases gradually over a 10dB input level range until it reaches the ratio set on the front panel control, thus achieving a more natural sounding compression In HARD mode the compressor provides a more precise means of controlling gain, where the ratio as set on the front panel is applied immediately the signal exceeds threshold. This is particularly useful in many broadcast applications. HARD knee compression can also be used creatively as an effect, particularly in the treatment of drum and guitar sounds, or for giving rock vocals a 'compressed sound'.
• Auto Attack and Release : removes the need for manual adjustment by producing a response which constantly follows the dynamics of the signal. This enables the DL441 to preserve crisp transients without allowing excessive peaks to occur. A smooth yet lively recovery from compression minimizes side effects such as 'pumping' and 'breathing'. This feature is particularly valuable when the program being treated does not have predictable or consistent dynamics, such as complete mixes, vocals or 'slapped and pulled' bass guitar.
• Peak Level Limiter : 'Zero Response Time', 'Zero Overshoot' circuitry provides an absolute limit to the peak level of the output signal, adjustable from 0db to +16dB above system level. 'Zero Response Time' transparent limiting means that the DL441 provides complete protection from even the fastest and shortest signal overloads, making the unit ideally suited for speaker system protection in sound reinforcement applications. The sophisticated circuitry will also prevent unpleasant distortion when used for digital mastering.
• Metering : Comprehensive bar graph displays give 'at a glance' indications of gain reduction, and input/output signal level Gain reduction from 1dB to 30dB is shown simultaneously with signal level from 10dB to +10dB. When the channel is in BYPASS the output bar graph displays the input signal level. Other single LEDs indicate function status of Hard/Soft compression, Bypass, Peak Limiting, Linking, and Power on.
• Bypass : A fully balanced hard-wire bypass connects the input directly to the output allowing signal to pass through the unit with no power applied.
• Stereo Linking : Channels 1-2 and/or 3-4 can be stereo linked, where the left channel of the stereo pair becomes the master.
• Operating Level : The operating level of the DL441 can be instantly switched, independently on each channel, for either +4dBu or 10dBu operation using a rear panel push switch.
• Input/Output : The DL441 is provided with balanced inputs and outputs on XLR connections.

Drawmer DL251 Spectral Compressor

Price List USD 1.016

Drawmer DL251 Spectral Compressor

It is well known that compression, in its basic form, tends to remove high frequencies from any material with a wide bandwidth. This is because material usually has less energy at high frequencies than it does at low frequencies and since single band compressors are not frequency conscious, the 'highs' are attenuated together with the 'lows'. Using a slow attack time improves matters to some extent, but signals containing many harmonics (eg: vocals, strings and brass) or dynamic signals with a powerful 'leading edge' (eg: piano, kick and snare drum) tend to lose some clarity which often requires further audio processing. It is a fact that many engineers who would like to use a compressor in a particular application, avoid doing so because they feel that the 'sound loses something'. The DL251 'Spectral Compressor', incorporates a variable 'Dynamic Spectral Enhancement' (D.S.E.) section which eliminates the problems associated with full band compressors by restoring the high frequency energy lost during the full band compression process. This enhancement circuitry is extremely effective where compression and limiting are employed for broadcast transmission, or across complete mixes in a stereo mixdown situation. 'Dynamic Spectral Enhancement' has many creative applications when recording individual components at the multi-track stage, particularly on such programme as acoustic guitar, piano, brass and vocals.
Facilities available on the DL251 include:

• Compressor : The compressor section can be switched to provide either HARD or SOFT knee compression In both the HARD and SOFT modes a Ratio control is available In the S0FT mode the ratio increases gradually over a 10dB input level range until it reaches the ratio set on the front panel control, thus achieving a more natural sounding compression. Selectable manual or automatic Attack and Release times dramatically extend the application range and user scope of the DL251. Selecting the 'Auto' mode removes the need for manual adjustment and is particularly valuable when the programme being treated does not have predictable or consistent dynamics, such as on complete mixes, vocals or 'slapped and pulled' bass guitar. Under manual control the wide range of adjustment available gives the user the ability to create dynamic effects as well as normal compression.
• Enhance Level : A variable Enhance control can be used to 'dynamically' boost any high frequency energy lost during the full band compression process and has sufficient range to add additional 'Spectral Energy' to the programme material for creative processing. When no compression is taking place, the 'Dynamic Spectral Enhancement' circuitry is inoperative and so no change is made to the signal. However, as the signal level rises to the point where gain reduction is taking place, the Enhancement system 'kicks in' applying dynamic boost which is directly related to the amount of gain reduction taking place. A front panel switch offers an instant A/B comparison of this feature and a green LED indicates the amount of enhancement taking place.
• Metering : Comprehensive bar graph displays give 'at a glance' indications of gain reduction, and input/output signal level Gain reduction from 1 dB to -30dB is shown simultaneously with signal level from 20dB to + 15dB Other single LEDs indicate function status of Hard/ Soft compression, Auto Attack/ Release, Side chain monitoring, Bypass, Enhancement, Peak Limiting, Stereo Linking and Power on.
• Side Chain Listen : A front panel push button with LED status enables the monitoring of any external processing applied to the side chain access connections on the rear panel.
• Bypass : A fully balanced hard wire bypass connects the input directly to the output allowing signal to pass through the unit with no power applied. In bypass mode the output level bar graph displays the Input signal.
• Stereo Link : When processing stereo signals, linking should be used to prevent image shifting. This facility ties both channels together. Using channel 1 (Left) as the master channel removes the need to duplicate control settings for both channels. A rear panel switch allows the selection of 'Peak' or 'Average' stereo signal detection.
• Peak Level : 'Zero Response Time', 'Zero Overshoot' circuitry provides an absolute limit to the peak level of the output signal, adjustable from 0dB to +16dB above system level When set to the required level, any excessive peaks will be stopped and the gain momentarily decreased if necessary The 'Zero Response Time' is essential to avoid unpleasant distortion when mastering for CD or sending any signal to digital equipment. 'Zero Response Time' means that the DL251 provides complete protection from even the fastest and shortest signal 'spikes' (overloads), making the unit also ideally suited for speaker system protection in sound reinforcement applications.
• Operating Level : The operating level of the DL251 can be instantly switched, independently on each channel, for either +4dBu or -10dBu operation using a rear panel push switch.
• Input/Output : The DL251 is provided with balanced inputs and outputs on XLR connections.