S-zone - 4 zone stereo mixer
4 Channel / 4 zone stereo mixer
2 Mic/Stereo Line inputs with ducking
2 Stereo CD/Line inputs
On board Speaker and Headphone monitoring
Euroblock output connectors
Remote Volume Control

The S-Zone gives system installers all the features they need to control up to four zones of audio with a compact, single-rack space unit. It features 2 balanced mic and 4 balanced aux/line inputs with a unique front panel control section that allows you to assign any of the four inputs to any of the four zones with just the push of a button. The front panel layout also has input and output volume controls, independent 2-band equalization, and an on board speaker for selectable zone monitoring.
D-1500 - Digital Real-Time Analyzer
31-band RTA
Large LED display
Signal generator (sine, white, pink)
Test Mic Input
Phase Correlation & VU Meters
Linkable via MIDI or D•Net System Interface

If you don’t know what kind of acoustic environment you are dealing with, even the best equipment can leave your sound lacking its detail and presence. That’s where the D-1500 Real Time Analyzer comes in. With 31 bands of EQ analysis, what could have once taken you hours to do can now be performed in minutes, giving your audio output a true sonically flat frequency response.
D-2500 - Digital Graphic Equalizer
Dual 31-band 1/3 octave channels
47mm front panel faders
Store up to 100 program settings
Programmable Delay, High/Low Pass, Gate, Limiter & more
24-bit audio resolution and sample rates up to 96kHz
Feedback Suppression
Linkable via MIDI or D•Net System Interface

The beauty of the D-2500 Digital Graphic Equalizer is that it has 31 bands of real hands-on faders as well as a stereo master gain control with fader, programmable delay, high and low pass filters, noise gate, limiter, and enhancer. D-Class brings you the best digital performance with the function and feel of true analog equipment.
D-3500 - EQ and Feedback Management
30 parametric filters
AFR Auto Frequency Restore
Multiple filter settings
Programmable Delay, High/Low Pass, Gate, Limiter & more
24-bit audio resolution and sample rates up to 96kHz
Store up to 100 program settings
Linkable via MIDI or D•Net System Interface

Two of the biggest problems with digital processing units are that they can be difficult to understand and cumbersome to operate. The D-3500 Feedback Management System simplifies matters with Automatic Frequency Restoration (AFR) technology. If feedback spikes on any of the 30 filters, the frequency is cut. But even better, AFR continues to monitor that frequency. So, unlike feedback systems of the past, If the feedback goes away, the frequency is restored.
S-curve 215 - Graphic Equalizer
2/3 octave dual 15 band graphic equalizer
Constant Q circuitry
Balanced XLR and TRS inputs and outputs
Low cut, and bypass modes
LED faders and LED bar VU meters
Single rackspace

The S Curve 215 is a professional quality signal processor that gives you precise tonal control over two channels of audio. Center detented sliders with LED illumination allow you to selectively cut or boost selected frequency areas by as much as 12 dB. Front panel controls include output level sliders, lowcut and bypass switches, while the rear panel provides electronically balanced inputs and outputs. Thanks to low noise circuitry, the S Curve 215 can be used in a wide variety of applications, including live performance (in conjunction with either Front Of House or monitor mixers), in broadcast environments, or for recording.
S-2 way - stereo/mono crossover
Full featured 2-way Stereo / 3-way Mono operation
Precision Linkwitz-Riley 24dB/Octave filters
Master Control Section with phase and mute switches on each output, allowing individually monitoring of crossover sections
Four segment LED Input Gain meter
X10 Range switch allowing frequency adjustment from mid-band to high-band
2ms of Delay for time alignment on low frequency channels
High quality metal shaft pots and backlit switches
Servo balanced XLR outputs

The S-2 way utilizes the latest technology in crossover filters and speaker management design. The S-2way can run in stereo two-way or three-way mono, making its application ideal for a variety of sound system configurations. Pristine audio quality is a result of low noise operational amps and high quality VCA's, as well as servo balanced input and output XLR connections.
S-3 way - Stereo/Mono Crossover
Full-featured, Stereo 3-way, Mono 4-way Electronic Crossover
Phase Switches Invert the Phase of Individual Outputs
Adjustable Low Frequency Delay for Time Aligning Speaker Stacks
Mode Indicator LEDs Provide Quick Visual Display of Operating Mode
4 Segment LED Input Meter Allows Easy Gain Adjustment
Precision Linkwitz-Riley, 24 dB/Octave filters
Output Mute Switches for All Individual Outputs
Constant Directivity EQ Smoothes the Response of CD Horns Above
3.5 kHz
Peak Limiter with Independent Threshold Control and Peak LED
High Quality 41 Position Detent Pots and Backlit Switches
Three-year Extended Warranty

The S 3-way is a versatile 2-way, 3-way and 4-way crossover with a difference. First, it's a perfect 2-way or 3-way stereo crossover. But its mode is also switchable for use as a 4-way mono crossover. The input gain features +/-12dB range with LED metering and Peak indicators. S 3-way features Low, Mid and High Frequency outputs with +/-6dB of gain control. Each output incorporates a Mute switch for monitoring the individual frequency bands and a phase switch to invert the phase of the output. The first crossover point is sweepable in three ranges: from 35Hz to 800Hz, from 350Hz to 8kHz with the 10X-Multiplier switch engaged, or from 16Hz to 400Hz in 4 way low-mode. The second crossover point is sweepable from 175Hz to 4kHz or from 350Hz to 8kHz depending on the setting of the mode switch.
The S 3-way also includes a Delay section with up to 2ms of delay to time-align low frequency outputs for improved phase response of any PA system. S 3-way's global section features a variable threshold Limiter, a CD function (for constant directivity horns) and High Pass Filter.
S-com - Stereo Compressor/Limiter
Compressor/Limiter, Expander/Gate with Enhancer
Advanced Circuit Design Utilizing Low Noise Operational Amplifiers and High Quality VCA's
Enhancer Circuit with Independent Control
12 Segment LED Meters for Input/Output and Gain Reduction
Expander/Gate with Variable Trigger Control and Switchable
Fast/Slow Release
Servo Balanced Inputs and Outputs on XLR and 1/4" Connectors
SKD (Smart Knee Detector) Circuit Switches from Soft to Hard
Knee Based on the Level of Input Signal Applied
AEG (Auto Envelope Generator) Mode Constantly Adjusts the Compressors Attack and Release Times
Three-year Extended Warranty

The S com is a dual-channel, single rack space stereo compressor designed to control signal levels in a variety of applications. S com's logical design and layout make it simple to understand and easy to use. Its sonic integrity offers clean, distortion free audio, and a predictable, usable range of control from undetectable to clearly identifiable.
Each channel combines an Expander/Gate, a Compressor/Limiter and a fully adjustable Enhancer. This unique circuit reduces noise, increases loudness and recovers high frequencies that might otherwise be compromised when audio is heavily compressed. The Spectra switch adds a mid-band boost to the detector circuit to help smooth out harsh vocals.

The Expander/Gate features a variable Threshold control and switchable (fast/slow) Release time. The Gate's operation is easily visible with twin (open and closed) LEDs. The S com's Compressor/Limiter controls include Threshold, Ratio, Attack, Release, and Output. The Auto function continuously analyzes the audio input, and automatically adjusts the attack and release parameters based on the changing level. A Key input and Key Listen feature provides for external triggering, or EQ, of dynamically processed signals.