The DP/Pro is a Multi-Effects Processor with sample rates of up to 48khz and a dynamic range of better than 100dB. It is equipped with hi-res 20-bit converters and can be upgraded with a user-installable 24-bit digital I/O option.

Extended information

The DP/Pro is an all new, fully professional dual effects processor. It is a true stereo system powered by two of Ensoniq's next generation ESP02 digital signal processors running at sample rates up to 48 kHz, with a dynamic range of better than 100dB. It is equipped with high resolution 20-bit converters and superlow noise circuitry for maximum performance, and can be equipped with a user-installable professional 24-bit digital I/O option.

More than 35 finely tuned custom algorithms
128 meticulously programmed effect presets
265 RAM locations available for user customized effects
Ergonomic layout of the front panel
Sleek single rackspace enclosure

Technical specifications

"Processors (2) ESP-2 custom VLSI 24-bit digital signal processors with 48 MIPS total processing power.
24-bit digital audio path
52-bit internal accumulation
Maximum delay time (per processor):
@ 48 kHz = 2.73 seconds (stereo)
@ 44.1 kHz stereo = 2.9 seconds (stereo)
16 MHz, 16-bit host processor with DMA for better real time response

Algorithms/Presets Over 35 Algorithms
384 Presets (256 RAM, 128 ROM)

Input/Output Specifications A/D conversion: 20 bit (1 bit, 128 times oversampled)
D/A conversion: 20 bit (1 bit, 128 times oversampled)
Converters are upgradable
Maximum Input Levels: +4dbu Balanced Setting:
+20dBu = +17.88dBV = 7.75Vrms = 21.9Vp-p
10dBV Unbalanced Setting:
+8.12dBu = 5.90dBV - 1.97Vrms = 5.58Vp-p
Maximum Output Levels (+4dBu / -10dBV settings):
+4dBu: +18.6dBu=16.4dBV=6.6Vrms=18.6Vpp -10dBv: +6.72dBu=4.5dBV=1.68Vrms=4.75Vpp
Input Impedance: 15kohm (Balanced)
Output Impedance: 120ohm
Frequency Response: 10Hz-20kHz, +/- 0.5dB
Dynamic Range: >100dBA
THD+Noise:<0.003% = -90dB down from full scale output (Measured w/ 1kHz +4dBu balanced input, +4dBu setting @ +10dBu output level)
Crosstalk between channels:
better than -90dB (@ 1kHz)
Hardware bypass with high quality relays

Front Panel 1 Stereo Input Level Knob
Stereo 6 stage LED headroom meters. Levels are: 0dB, -3dB, -6dB, -12dB, -20dB, -30dB..
Meter function switch toggles headroom LEDs to meter Analog Inputs or Digital Outputs
24x2 Supertwist character LED
1 Rotary Encoder (Value knob)
20 buttons, 16 with LEDs, for various selection and editing functions, including Tap and Tweak.
Power Switch

Rear Panel Inputs: (2) combination female XLR balanced and 1/4"" TRS balanced/unbalanced juacks
Operating signal level toggle switch:
+4dBu (balanced)/-10dBv (unbalanced input)
Outputs: (2) separate XLR male balanced and 1/4"" TRS balanced/unbalanced jacks for Ground Compensated Outputs
1 Dual Foot Switch
MIDI In, Out, Thru

Optional Accessories DI-Pro user-installable digital I/O kit - Supports both S/PDIF (up to 20-bit) and AES-EBU (up to 24-bit)
ADC-24 Converter upgrade kit - this kit will provide a complete 24-bit analog input/output path when 24-bit converters become available
SW-10 Dual Foot Switch
User-installable Operating System updates/upgrades

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