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Delta 98

4-IN 8-OUT Loudspeaker Processor, Matrix & Controller with Fir

Product at a Glance

Engineered for precision system control, the Delta 98 is a high-performance 4-in 8-out loudspeaker processor designed for professional audio installations and touring applications. It features 96kHz DSP with an advanced 1024-point FIR filtering architecture, delivering exceptional audio clarity and superior crossover management. Built with a Visualised Transparent Compressor, dynamic EQ capabilities, and extensive filter options including Linkwitz Riley and Butterworth slopes up to 48dB/octave, the Delta 98 offers detailed tonal shaping across all input and output channels.

The processor is equipped with RS 485 and USB network control, 4 XLR analogue inputs, and 8 XLR outputs for seamless integration. Its intuitive interface with LED display screen and DSP control panel ensures effortless configuration in complex setups. Housed in a black aluminium chassis with a brushed steel front panel, the Delta 98 is lightweight yet robust, ideal for rack-mount use in demanding environments. It brings together high resolution, flexible control, and compact efficiency to elevate any professional sound system.

CRAFTSMANSHIP

Painstakingly Perfect Production

Over the years, craftsmanship has been closely linked with small scale individualistic production. Back in 1972, we started the same way. As we grew in scale & size, it was difficult to build each speaker individually, but quality control was of utmost importance as so switching to a general assembly line was simply not an option. So we wrote up a code, one quite like enigma, to ensure quality control. We selected the right partners, got the right tools, and in cases where those weren't available, we invented them. We grew slower than most as our aim was to last longer than most.

TECHNICAL SPECIFICATIONS

IO SPECIFICATIONS

• 4 Analogue Inputs
• 8 Analogue Outputs
• 1024 Asymmetrical FIR Taps
• 96 kHz DSP on all channels
• RS & USB 485 Network Control

AUDIO
PERFORMANCE

• Impedance > 10k Ω
• CMRR > 60 dB (50 Hz-10kHz)
• Minimum load : 600Ω
• Sample rate : 96kHz
• Freq. Response : 10 Hz - 40 kHz
• Dynamic range > 118dB (20 Hz - 20 kHz)
• THD : < 0.002% (20 Hz - 20 kHz)

CROSSOVER FILTERS

• Linkwitz Riley : 12/24/36/48 dB per Octave
• Bessel : 12/24/36/48 dB per Octave
• Butterworth : 12/24/36/48 dB per Octav

EQUALISATION

• 6 Filters per Input/Output
• Each filter can be set to Parametric,
Low-Shelf, High-Shelf or 2 different All
Pass Filters

Dynamic EQ

• 2 Filters per Input
• Adjustable threshold, target levels, ratio, attack & release settings

Dynamics

• Visualised Transparent Compressor with Level, Ratio, Attack & Release Settings.
• Automatic Gate Compensation on all inputs & Limiters on Outputs

Controls & Monitoring

• 4 Input & 8 Output Meters
• LED Display Screen
• DSP Control Panel

Connectors

• 4 XLR Inputs & 8 XLR Outputs
• RS 485 (ETH/Euroblock) Control Input
• USB Type-B Control Input

POWER SPECIFICATIONS

• 85-230 VAC, 50Hz -60 Hz
• 1A Power Consumption, Nominal @ 240V,
4 Ohms
• 2A Power Consumption, Nominal @ 120V, 4
Ohms
• See Power Consumption & Thermal
Emission Chart for a detailed specification