Using the latest digital signal processing and high sample rates would be wasted if attention is not paid to capturing the signal as faithfully as possible, and reproducing it accurately. The range uses high-performance 24-bit converters on the inputs and outputs, running at 96kHz to give a bandwidth of over 30kHz and a dynamic range in excess of 116dB.

With multiple inputs and outputs, the 4 Series are able to offer much more than a simple crossover system. To make configuration as simple as possible, a selection of templates are available to set the system up, taking care of routing and selecting useful crossover points.

Inputs Electronically balanced (transformers optional):AES/EBU (selectable) fitted as standard to all Series 4 units

Impedance >10k ohms:CMRR >65dB 50Hz - 10kHz

Outputs All electronically balanced (transformers optional):AES/EBU fitted as standard to all Series 4 units

Minimum Load 600ohm

Maximum Level +20dBm into 600 ohm load

Sampling Rate DP428 – Up to 96kHz internal, up to 192kHz can be accepted and converted.

Dynamic Range >116dB 20Hz -20kHz. Unwtd

Distortion < 0.001% @ 1kHz, +10dBm

Maximum Delay 650 mS. (increment 0.325 µs steps)

Output gain Adjustable +15dB to -40dB in 0.1 dB steps and mute

Filters Parametrics - 8 Per input / 9 per output

Additional filters 28-band graphic on each input

Each parametric can be switched to Bandpass, Allpass, Notch, VariQ, Shelf and Elliptical response

Phase filtering - 2 degree steps on each input and output

Bessel / Butterworth 6/12/18/24/48dB per octave

and Linkwitz-Riley 12/24/48dB per octave

Threshold +22dBu to -10dBu

Attack time 0.3 to 90 milliseconds

Release time 4, 8, 16 or 32 times the attack time

Clip/D-max Limiter Look-ahead attack time,Fast, Medium or Slow release times

Inputs 3 pin female XLR

Outputs 3 pin male XLR

RS485 In/Out XLRs

RS232 9 Pin (Female) D Connector