The Aphex Model 622 is a dual channel dynamics processor, incorporating new, proprietary detection circuitry that provides the most reliable, accurate, and stable operation of any gate. The model 622 also offers the highest quality audio path, flexible high "Q" key filters, key headphone outputs on the front panel and remote controlled bypass relays. All these features make the Model 622 the choice of professionals in recording, broadcast and sound reinforcement.
APPLICATIONS
Control audio leakage in stage and studio mixing applications
Increase dynamics of any program material - recorded or live
Manipulate external audio program for voice-overs and automatic level changes
Key external sounds to any audio track
Reshape any sound envelope
Control feedback in live sound applications
Create special dynamic effects
Features
Logic Assisted Gate Circuitry: combines sophisticated level detection with logic generated control voltage assuring positive, stable and accurate triggering regardless of attack time. Patents pending.
Ultra-pure Audio Path: Proprietary Aphex VCA 1001 voltage controlled attenuator assures the highest audio quality, speed and freedom from DC control feed through (no clicks regardless of attack time).
Parametric key input filters - 24 dB/octave: Switchable parametric filters with frequency and bandwidth controls allow user greater ease of frequency selection.
Key Monitor headphone jack: provides ability to monitor key input without disrupting audio output.
Dedicated downward expander mode: allows High Resolution of ratio adjustment: from 1.2:1 to 10:1.
119 dB dynamic range.
Switchable ducking mode: Fully adjustable control of trigger threshold, attack time, hold time, release time, expander ratio, and attenuation range.
Simple and accurate metering system.
Improved servo-balanced input and output circuits.
5 year limited warranty.
+4/-10 operation, rear panel selectable.
Hardwire relay bypass: remote controllable.
Designed and manufactured in the U.S.A.
BENEFITS
Best commercially available noise gate provides unmatched performance in all parameters
- Lowest distortion (0.005% typical)
- Widest frequency response (5 Hz 100kHz)
- No clicks, regardless of attack speed
- Ultra-quiet and reliable
Fast setup, stable, reliable, accurate
Simple and intuitive to operate
Rugged and durable construction
High dynamic range is most suitable for quality digital and analog recording applications
Versatile - can be used in all recording and live performance applications
Best user-value in terms of features, performance quality, and durability relative to purchase price
APPLICATION HINTS
Controlling Leakage In the Studio - The 622 is very useful to prevent one instrument from bleeding over into the track of another during tracking or mixing. The Key Filters can be used to tune the key signal so it responds to the desired instrument. Cymbals and bass drum can easily and effectively be kept out of a snare track, for example.
Reducing Feedback On Stage Microphones - By using the 622 as a gate on stage mics, they will be turned off when the performer steps back to take a solo. Pickup from the monitors and other instruments will be eliminated.
Keying External Sounds To A Percussion Track - The bass guitar or reverb or low frequency oscillators can be synced exactly to the bass drum. This can tighten or fatten up the rhythm track.
Reducing Tape Noise - The 622 can effectively reduce tape hiss by gating channels so no noise is being added to the mix when no signal is present. This can result in a tremendous reduction of noise on a multi-track mix.
Ducking Programs For Voice-overs and Paging - The ducking action of the 622 can automatically reduce the level of a music track whenever a voice (or other signal) is present, becoming an automatic mixer. The amount of ducking or attenuation is set with the RANGE control.
Adding New Dynamics To Existing Program Material - Because of the variable ratio control, the 622 can be used to spice up the dynamics of a sound track. Low ratios (1.2:1-4:1 ) will multiply the existing dynamics, adding some punch and life to a boring track.
Reshaping Sampled Sound Envelopes - Once a sound has been captured in a sampler, the 622 can be used to change the envelope, creating new sounds. Attacks can be slowed, dynamics expanded or even reversed with the comprehensive controls on the 622.
Aphex Systems
Aphex is dedicated to the development of high-quality products for the professional audio, broadcast, fixed installation, touring-sound and home-recording markets. Through that dedication, Aphex has developed a number of industry-standard devices, such as the CompellorĀ®, DominatorĀ®, Expander/Gateā?¢ and Expressor,ā?¢ plus the Model 1100 Two-Channel and Model 1788 Eight-Channel Ultra-Precision Remotely Controllable Microphone Pre-Amplifiers, and the Model 2020 Mk III Broadcast Audio Processor.
Each product contains one or more of the over 30 proprietary inventions (patented or patents pending). A key element of all the dynamics processing products is the firm's state-of-the-art Voltage Controlled Attenuator, the Aphex VCA 1001.
Used Effects and Multi FX
Effects and Multi FX devices are devices that used in audio recording to alter the sound of audio sources like musical instruments by employing a range of digital sound effects. Also called a DSP Processor, Effects and Multi FX devices can alter audio sounds in a variety of different ways, and these changes can be either extremely subtle or hugely dramatic, depending on the type of digital effects unit which is used.
A Multi Effects processor can be used in both sound recordings or live during a performance. Effects and Multi FX can be employed to great effect with a wide variety of musical instruments, although they are most often paired with electronic instruments such as keyboards, bass and electric guitars.
Musicians and sound engineers use Multi FX devices such as fuzzboxes and wah-wah pedals to create a class of seven different sound effects, including Distortion, which clips the audio signal of an instrument, distorting the form of its sound waves and also adding overtones.
Other sound effects which can be achieved by an effects processor include Dynamics, which simply boost the volume level, Filter, which is applied to alter an audio signalā??s frequency, and Audio Feedback, which was pioneered by the legendary Jimi Hendrix. Effects and Multi FX processors are also used to create sounds that have irregular tonal properties, an effect known as modulation, and can also modify the Pitch of an audio signal.
Lastly, an FX processor can also add time-based effects, such as delays or echoes.
