Content | The MX30 Pro Gated/Comp/Limiter is a low cost professional quality dynamics processor. Drawing on our many years experience in professional audio we have developed a series of lower-cost Drawmer dynamic signal processors, the MX Pro range. Aimed at the musician, project studio and live performer, who is determined not to compromise on quality, but have to work to a tighter budget.
By using circuit elements drawn from existing top-of-the-line Drawmer products and by simplifying the control systems where possible, the MX Pro range is no less sophisticated than our other units, despite the price tag. As a result the inexperienced user gains the benefits of Drawmer quality and performance, combined with lower cost and simplicity of operation.
Operational control is split into three sections:- Gate, Compressor, Output:
Programme Adaptive’ Gate
Used to remove unwanted noise below a pre-set level, each channel consists of a variable Threshold Gate incorporating Drawmer’s ‘Programme Adaptive’ circuitry. Although quick and simple to operate, the gate’s auto-circuitry continually optimises such parameters as Attack, Hold, Ratio and Release, completely eliminating ‘chatter’ when the signal is fluctuating on or around Threshold. Two LEDs show when the signal is ‘above’ or ‘below’ Threshold and a push button switch allows additional control of Release time. This design approach also retains all ‘leading edge’ information making the gate ideal for ‘cleaning up’ vocals or retaining the ‘punch’ on gated drums. Switching is provided for \'Fast\' or \'Slow\' release characteristics. The \'Fast\' mode can be used for instruments with rapid decay times or for additional tightening of the gating effect. The \'Slow\' mode is more suitable for vocals and instruments with longer decay times or can be used to smooth over rough fade outs. A single LED indicates gating action.
Soft Knee ‘Auto Compressor’
The gate is followed by a variable Threshold, variable Ratio, soft knee compressor with fully automatic Attack and Release. Large transients are controlled instantly whilst small signal variations are treated gently, retaining as much ‘life’ as possible and without generating unpredictable side effects. the MX30 Pro handles all compression levels with ease and displays the amount of compression on a high resolution Gain Reduction bargraph meter.
Output
The Gain control is used to compensate for the amount of compression and brings the signal to the required output level as displayed by the output bargraph meter. A variable Threshold ‘zero overshoot’ limiter, essential for avoiding distortion when mastering to digital or speaker protection in a ‘live’ situation, adds the final polish to the signal by keeping control over signal peaks. The Limit threshold provides an absolute maximum peak level which no signal can pass. Fast transients are clipped instantly whilst more sustained peaks are dealt with by applying Gain Reduction, indicated by a single LED.
Gate Threshold:
This control sets the level below which gating takes place and may be set anywhere in the range of -70dB to +20dB. A green LED illuminates to show when the signal is above threshold (i.e. gate open) and a red LED illuminates when the signal is below Threshold (i.e. gate closed).
Release: Either a Fast or Slow auto release contour may be selected depending on the material being processed. An LED indicates when Slow release status is engaged. Percussive material with little or no reverb is generally treated using the Fast release setting, whereas with slow decays or a significant amount of added reverb will usually respond better to the Slow release setting.
Compressor Threshold: This determines the input level above which gain reduction will be applied and may be set anywhere in the range of -40dB to +20dB. Soft Knee compression takes place for signals exceeding the threshold level by up to 10dB above which level, conventional ‘ratio’ compression is applied.
Gain Reduction Bargraph Meter: A nine segment LED bargraph meter continuously monitors the gain reduction applied by the compressor over a range of 0dB to 30dB.
Ratio: Sets the final compression ratio that will be applied once the 10dB soft knee region is exceeded. The ratio may be continuously adjusted from 1.2:1 to infinity:1 allowing the possibility of true hard limiting. The higher the ratio setting the more compression takes place (eg. A ratio of 8:1 means that an 8dB increase in volume at the input will appear as a 1dB increase in volume at the output).
Stereo Link: The unit can function as two independent gated/compressor/limiters or when ‘link’ mode is engaged for stereo use Channel 1 becomes the master, automatically duplicating its parameters across to Channel 2. In this mode the same degree of gain reduction is applied to both audio channels to prevent image shifting.
Output Gain: The output level may be attenuated or amplified by up to 20dB to compensate for level changes caused by compression. This control comes directly before the Peak Limiter detector and this fact should be taken into account when setting the Peak Limiter threshold.
Peak Limit: This control sets an absolute limit that the output signal will not be permitted to exceed. The limiter is ‘zero response time’ and controls peaks without any audible distortion. For transparent ‘peak protection’ the output gain control should be set to ensure that the Peak Limiter operates only occasionally. Alternatively, the unit can be driven into heavy limiting for creative effects.
Input/Output Bargraph Meter: An eight segment LED bargraph level meter monitors the output signal level over a range of -20dB to +15dB. When Bypass is selected this meter reads input level. |
The AD2055 combines 100% discrete, pure class A signal amplifiers with state-of-
the-art passive and active filter topologies. The AD2055's unique circuitry delivers
very high resolution transient detail at the operational extremes of real world equalization
demands. The AD2055 auto-bias DC servo loop control eliminates the need for all
interstage capacitor coupling. The AD2055 breathes life into all musical performances!
AD2055 FEATURES
Pure Class A, 100% discrete design
Smooth musical detail and sonic excellence
Minimum audio signal path
Dual mono operation
Transparent active and passive filter design
High headroom +30dB Very low noise -94dB
Fully balanced inputs and outputs
DC coupled, no transformers in audio path
Switched frequencies in high and low bands
Mid bands use X10 frequency for extended range
Wide bandwidth -3dB 1Hz to 450kHz
Low distortion less than 0.5% THD and IMD
All signal routing with sealed silver relays Conductive
plastic potentiometers for low noise
External 150W toroidal power supply 100% discrete
power supplies for audio path
Long lasting, stainless steel hardware
SONIC EXCELLENCE
The Avalon AD2055 Pure Class A music equalizer is the most powerful, low noise
parametric equalizer available today. Designed to optimize absolute signal integrity
and musical performance, the AD2055 combines the best of active and passive filter
topologies with sonic excellence unequaled by lesser designs. The AD2055 is the
perfect solution for two buss music-program equalization, special instrument EQ and
FX applications and ultra high performance mastering studio's.
Features include state-of-the-art, balanced 100% discrete, Pure Class A signal amplifiers,
practical user features and rugged hardware designed to deliver true high performance
audio for many years.
PASSIVE-ACTIVE FILTER DESIGN
Avalon equalizers feature the unique combination of both active and passive filter EQ designs.
This special combination enables the AD2055 to deliver high speed transient detail at the
operational extremes of real-world equalization demands. The passive high and low bands offer
alternate musical tone range to the full function active parametric mid bands. Passive equalizers
have long been a favorite with music lovers around the world. Full bodied, powerful (up to +/-32dB,
64dB range !) and sweet frequency selections are the benefits of the passive high-low EQ bands.
The full bandwidth twin mid bands provide variable frequency selection (X10 frequency multipliers
for very wide range), variable Q (width) and amplitude control.
MINIMUM SIGNAL PATH DESIGN
Avalon's advanced true symmetry design offers high-voltage, large headroom, extended bandwidth
and very low noise. The use of 100% discrete, Pure Class A signal amplifiers give the serious music
professional unlimited sonic character and a natural harmonic detail that enhances the program
material and becomes one with the music itself. The Avalon AD2055 breathes life!
AD2055 SPECIFICATIONS
Circuit Topology High-voltage 100% discrete, balanced and symmetrical
Class A
Output Gain Range Unity Gain
Maximum Input Level +30dB balanced XLR pin 2 hot
Maximum Output Level +32dB balanced 600 ohms, DC coupled, high-current
discrete Class A
Input / Output Type XLR type, pin 2 hot balanced
Noise 20kHz Unweighted -94dB (EQ in)
Distortion THD, IMD 0.5% (typical 0.05% at +6dB 1kHz)
Frequency Response -3dB 1Hz to 450kHz (input band limited)
Equalizer Type Passive high and low bands plus two fully parametric mid
bands
Bypass Hard-wire relay bypass for equalizer in-out
Low Band F1 Passive, amplitude to -32dB to +32dB shelf or peak-dip curve
F1 Frequency Range Switched 10 position 18Hz, 25, 30, 50, 72, 100, 150, 215,
300, 450Hz
Mid Band F2 Active, amplitude to -16dB to +16dB peak-dip curve
F2 Frequency Range Variable 35Hz to 450Hz (x10) 350Hz to 4k5Hz, Q (width)
0.3 to 3.0
Mid Band F3 Active, amplitude to -16dB to +16dB peak-dip curve
F3 Frequency Range Variable 160Hz to 2k0Hz (x10) 1k6Hz to 20kHz, Q (width)
0.3 to 3.0
High Band F4 Passive, amplitude to -26dB to +26dB shelf or peak-dip curve
F4 Frequency Range Switched 10 position 1k5Hz, 2k5, 3k5, 5k, 7k2, 10k, 12k5,
15k, 20k, 25kHz
AC-DC Power External AC supply, 150w toroidal transformer, 4 pin cable 90v
isolated,
(B2T Power Supply Included) 100-240v selectable 50/60Hz, 150w max
Dimensions 19 x 3.5 x 12 in (482 x 88 x 305mm)
Shipping weight 30lbs (13.6 kg)
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Description
The alphaton Feedback-Controller FC-100 is a revolutionary product for every microphone application including wireless types. It can provide effective feedback control to any sound reinforcement situation. It can also eliminated string feedback in guitars and bass instruments which are equipped with piezo or condenser pickups. The FC-100 provides 6 to 10 dB of feedback protection by analysing the incoming signal, detecting the presence of feedback and then notching out the feedback frequency. The FC-100 relieves the sound engineer automatically. It works dynamically and eliminates a feedback signal before it can grow into a peak. Internally a discriminator circuit detects the presence of regenerative feedback and triggers the automatic equaliser to insert a notch where the feedback peak is coming up. This normally prevents other peaks from developing but if they do, the process is repeated at high speed, thus keeping feedback under control.
Technical Data In- and Outputs transformer balanced max. Inputlevel + 3 dB Gain (RS=200 Ohm, RL=2kOhm) 0 dB Frequency Response 20 Hz ... 20 kHz, +/- 1,5 dB Feeback Cancellation 6 ... 10 dB Power Requirement 30 ... 48 V Phantom Current drain ca. 8 mA External Power Supply 9 ... 20 V DC, 3,5 mm jack, tip + Housing Aluminium Diecast Weight 285 grams Dimensions 112 x 60 x 32 mm |
The latest addition to the 10 Series product line, the dbx® 1074 QuadGate™, is the perfect companion to the 1066 and 1046. The 1074 offers 4 channels of gating with threshold, depth and release controls on each channel. The 1074, like the rest of the products in dbx 10 Series, is based on the legendary dbx V2 VCA and offers XLR inputs and outputs, and 1/4” side-chain input. In addition to an external key input per channel, the 1074 also has an internal filter that can be independently activated and controlled on a channel-per-channel basis. This filter allows the 1074 to not only clean up tracks, but gives you frequency selective control on each gate, to open exactly when you want it to. These features combined, make the 1074 an absolute must for those who require quad gating on applications including: Gating dry and percussive sounds such as snare drum and kick drum,gating sounds that have longer decay times such as cymbals and Pianos, gating hum or buzz from live instruments or recorded tracks or eliminating Headphone leakage into microphones. Gating instrument microphones to eliminate amplifier bleed.
From the company that has been redefining the standard of signal processing for more than 30 years, dbx® Professional Products comes a bulletproof product that caters to the scrutinizing needs of those who require the precision noise gating capabilities. Once again, the engineering staff at dbx® Professional Products have taken technology that has been over three decades in the making and have created a product that is flexible, versatile and rock solid in construction design. The 1074ʼs independent channel design with key filtering capabilities make it the perfect tool for countless applications.
- Four independent channels of gating
- Independent key filtering
- Independent Threshold and Release controls
- Differentially balanced gold-plated XLR and 1/4" inputs and outputs
- True RMS level detection
- Stereo Coupling mode
- Switchable +4dBu or -10dBv operation per channel
Input Connectors | XLR (Pin 2 and tip hot) | Input Type | Electronically balanced/unbalanced, RF filtered | Input Impedance | Balanced > 50 kOhm, unbalanced >25 kOhm | Max Input | > +22 dBu balanced or unbalanced | CMRR | 40dB: Typically >55 dB at 1 kHz | Key Input | Electronically balanced/unbalanced, RF fitered Balanced 50kOhm, unbalanced > 25 kOhm | Output Connectors | XLR (Pin 2 hot) | Output Type | Servo-balanced/unbalanced, RF filtered | Output Impedance | Balanced 60 Ohm, unbalanced 30 Ohm | Max Output | > +22 dBm balanced, > +20 dBm unbalanced | Bandwidth | 20 Hz to 20 kHz, +0/-0.5 dB | Frequency Response | 0.35 Hz to 200 kHz, +0/-3 dB | Noise | | Dynamic Range | > 115 dB, unweighted | THD+Noise | 0.008% typical at +4 dBu (1 kHz unity gain), 0.08% typical at +20 dBu (1 kHz unity gain), | Interchannel Crosstalk | | Stereo Coupling | True RMS Power Summing | Operating Voltage | 100-120 VAC 50-60 Hz or 200-240 VAC 50/60 Hz | Power Consumption | 30 Watts | Fuse | 100-120 VAC:250 mA Slow Blow, 200-240 VAC:125 mA Type T | Power Connector | IEC receptacle | Unit Weight | 6.9 lbs. | Shipping Weight | 9.3 lbs. |
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Features Four Independent Compressor Channels Channels 1 and 2, 3 and 4 are stereo linkable 7 LED Gain Reduction metering Balanced XLR Inputs and Outputs Sidechain Insert points Intuitive, user friendly layout Flawless performance The sheer amount of effects and signal processors necessary for today's standards of audio production puts a great strain on the available space in equipment racks, both in the studio and on the road.So, ARX would like to introduce the ARX Quadcomp. An all-new upgrade of the classic award-winning ARX Quadcomp?, the very first four channel 1 RU compressor.You?ll notice that we haven?t strayed very far from our original design concept. The Quadcomp is still four variable ratio Compressor/ Limiters neatly housed in a compact all steel 1 RU package. However, all new low noise/low distortion circuitry, better metering plus XLR inputs and outputs put the Quadcomp in a class of its own. More Control, Less Space On the front panel, each channel has the 'industry standard' individual controls for Threshold, Compression Ratio and Output, plus a new 7 LED Gain Reduction display for accurate visual indication of the amount of gain reduction being applied to the program, and an IN/OUT hardwire bypass switch.In addition to this, each channel has a blank numbered panel to write on for easy confirmation of compressor assigns. Precision Circuitry Internally, each compressor uses Class A VCAs and true 2 pole averaging RMS/DC converters for low distortion and accuracy, plus program dependent attack and release time, which automatically determines optimum compressor response. Balanced Inputs and Outputs The rear panel has true differential Balanced XLR Inputs and Outputs for each compressor. Each compressor has a TRS jack Sidechain access insert point, for frequency sensitive compression, De-essing, etc. in conjunction with an external equalizer (such as the ARX EQ260). Compressor pairs 1 and 2, 3 and 4 also have rear panel mounted Stereo Link switches for accurate stereo tracking. When switched IN, the first channel becomes the master and controls all the functions of the second except Output gain. Universal AC Power AC power range is switchable 100 to 120V, or 220 to 240V, and is connected to the unit via a standard IEC connector, with built-in fuse and voltage switch. Whatever the application ? Channel insert, Bus insert, Master Outputs, Monitor outputs, Crossover outputs, the Quadcomp II?s unique High Density design, precision Low Noise circuitry and clean uncluttered layout make it a truly useful audio tool for all applications.
T E C H N I C A L S P E C I F I C A T I O N S Input Impedance Balanced 20 Kohms, Unbalanced 10 Kohms Input Headroom + 20dB CMRR >50dB, 20 Hz?20 KHz Output Impedance Balanced 300 ohms Unbalanced 150 ohms Output Level (Max) + 20 dB Frequency Response 20Hz-20KHz ±0.5dB Signal to Noise ratio -93 dB Unweighted, -98 dB ?A? weighted Distortion .015% THD @ 0dB,1KHz Dynamic Range 108 dB Attack and Release Times Program dependent Metering 7 LED display: ?1, 2, 3, 6, 12, 18, ?24 dB Sidechain Insert Impedance 10 Kohm Power Requirements 100/120 V AC or 220/240 V AC Weight 5 lbs/2.2 Kg Dimensions 19“W x 1?“H x 6“D, 482 x 44 x 155mm Input Connector type Balanced XLR Output Connector type Balanced XLR Sidechain Insert Connector TRS Jack
Front Panel Controls Hardwire bypass IN/OUT switch Threshold, Ratio and Output Gain controls 7 LED Gain Reduction display Marker panel for labelling compressor assigns Stereo link status LEDs Rear Panel Connectors Input and Output balanced XLR connectors TipRingSleeve Sidechain insert connectors Channels 1 and 2, 3 and 4 Stereo link switches IEC AC mains connector with inbuilt fuse and voltage change |
Features Enhance switch to restore spectral balance of compressed signal Switchable Mode - Dual Channel or Stereo linked Above or Below Threshold LEDs Balanced XLR and Jack Inputs and Outputs Intuitive, user friendly layout Flawless performance
Innovation The ARX COMPO? is a unique compressor/limiter designed for use in any professional audio dynamics control application, packaged in a compact 1 RU chassis.The COMPO operates as two independent compressor/limiters, with 'industry standard' variable Threshold, Ratio and Output gain controls. A Stereo Link switch on the front panel lets both channels track as a stereo pair in a Master/Slave configuration. Enhance Switch The COMPO features an 'Enhance' switch, which provides frequency restoration to preserve the spectral balance of the audio signal, compensating for the sagging Low and High frequency response of compressed program material. The best way to think of it is as a 'smart' loudness control. Wide Scale metering There is comprehensive LED indication of all operating functions and status. Above or Below Threshold LEDs on each channel give you instant visual confirmation of compressor activity, as well as easy to read LED Gain Reduction meters. Balanced Inputs and Outputs On the rear panel, each channel has true differential Balanced inputs and outputs, on both XLR and TRS jack connectors. Other features include an Active/Bypass switch for each channel, and passive RFI filters on the inputs. Universal AC Power AC power range is a universal 100 to 120V or 220 to 240V AC, and is connected to the unit via a removable power lead and standard 3 pin IEC connector, with built-in fuse and voltage change switch. ARX Quality With its smooth compression, intuitive user friendly layout, high density precision circuitry, and extensive user-variable operating parameters, the ARX COMPO is the ideal installation 'set and forget' compressor, and is also equally at home in Studio, Broadcast and Sound Reinforcement environments.
Every day, ARX Audio interface products solve audio problems for thousands of people around the world.
T E C H N I C A L S P E C I F I C A T I O N S Input Impedance Balanced 20 Kohms, Unbalanced 10 Kohms Input Headroom + 22 dB CMRR >60 dB, 20 Hz-20 KHz Output Impedance Balanced 300 ohms, Unbalanced 150 ohms Output Level (Max) + 22 dB Frequency Response 20Hz to 20KHz ±0.4dB Signal to Noise ratio -85 dB Unweighted, -99 dB 'A' weighted Distortion .02% THD @ 0dB,1KHz Dynamic Range 107 dB Enhance Section Low Enhance 50 Hz, High Enhance 10 KHz Power Requirements 100/120 V AC, 220/240 V AC Weight 5 lbs/2.2 Kg Dimensions 19“W x 1?“H x 6“D, 482 x 44 x 155mm Input/OutputConnector type XLR, Balanced Jack
Front Panel Controls Channel A Active/Bypassed IN/OUT switch Threshold, Ratio and Output Gain controls Numbered marker panel for labelling compressor assigns 5 segment LED Gain Reduction display Above/Below Threshold status LEDs Enhance switch and status LED Stereo link switch and status LED Channel B controls identical to Channel A Rear Panel Connectors Balanced XLR Input and Output connectors. Balanced TRS jack Input and Output connectors. AC input connector, with voltage switch and fuse. |
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