Processing and Control for Professional AV Installations

372 SPL Computer

FAQ Why slave 372 SPL Computer’s together? The main reason to synchronize the sense events between units is to eliminate acoustic bleed-over between adjacent zones, and/or to eliminate problematic speaker line crosstalk while the sample is being taken. Why is the audio output of my 372 SPL Computer being interrupted? Because the 372 SPL Computer uses […]

371 SPL Computer

This simple, yet sophisticated SPL Computer is designed to ensure that foreground music and/or paging announcements are always clearly audible and distinct, but never too loud. Proprietary AmbiSense™ technology monitors ambient noise levels continuously, not just during gaps in the audio program, and responds quickly to sudden changes. Setup is simple: enter the parameters of […]

322 DSP Engine

The 322 compact DSP Engine matches a deep set of processing features with a breakthrough price. Small installations with small budgets don’t have to dictate small audio thinking. Designs that previously would have required either multiple analog units, or DSP power available only from large multi I/O platforms, are all possible with the 322 DSP […]

308 VCA Volume Control / Loudness EQ

The Symetrix 308 VCA Volume Control/Loudness EQ provides remote level control and loudness EQ for engineered sound systems. You set the amount of loudness EQ compensation by adjusting rear panel EQ DEPTH trimpots. These circuits may be defeated entirely by turning the trimpots fully counter-clockwise. The 308 is a half-rack unit that fits on a […]

307 Dual Isolation Transformer

The 307 is a two-channel isolation transformer intended for use in solving interface problems which require galvanic isolation between source and load. The 307 provides two high-quality line isolation transformers in a convenient half-rack enclosure. FAQ Where can I find a Flow Chart for the 307 Dual Isolation Transformer? 307 Flow Chart What is the […]

306 Preamp / Ducker

Like the other units in the Symetrix 300 series, the 306 is designed to provide extremely versatile controls within a streamlined, half-rack sized housing. Once installed in a paging/foreground music system, the 306 offers precise adjustments to automatically reduce the gain of a program signal when paging occurs. This allows the page to be heard […]

305 Distribution Amplifier (1×4)

The Symetrix 304 Headphone Amplifier is a 1-in / 4-out amplifier designed to drive multiple headphones of any impedance. Symetrix proprietary high voltage drive technology gives the 304 the ability to drive high impedance headphones with the equivalent output voltage of a much larger power amplifier, yet provides more than ample current for low impedance […]

304 Headphone Amplifier

The Symetrix 304 Headphone Amplifier is a 1-in / 4-out amplifier designed to drive multiple headphones of any impedance. Symetrix proprietary high voltage drive technology gives the 304 the ability to drive high impedance headphones with the equivalent output voltage of a much larger power amplifier, yet provides more than ample current for low impedance […]

303 Interface Amplifier (Bi-directional)

The Symetrix 303 Interface Amplifier creates a proper interface between consumer and professional audio gear. This tool provides bi-directional level-matching and balanced/unbalanced conversion between professional (+4 dBu nominal level, balanced) audio equipment and consumer (-10 dBV nominal level, unbalanced) audio components. FAQ What is the pinout for the PS-3 power supply? There are two separate […]