Cookie Consent by


The coming years at ESX will be all about sophisticated sound tuning. The prelude to the new DSP (r)evolution from ESX are the two digital sound processors from the DIRECTION series. Finest selected components, optimally tuned and combined into an ingenious overall concept, perfectly adjustable down to the smallest details with the newly developed PC software, make sound enthusiasts click their tongues respectfully. With the optional Bluetooth 5.0 upgrade set BT-D, the app version of the ESX DSP Toolkit can also be used live and in real time from the smartphone - including HD audio streaming. The RC-DQ LCD remote controller, which is available as an accessory, offers additional ease of use.


Thanks to the latest state-of-the-art analog/digital converter from AKM Velvet Sound™, the sound processing of the Analog Devices™ 32 bit/295 MHz DSP chips takes place in the full HD audio range at 96 kHz. In addition to audiophile aspects, a smooth integration into modern vehicles was also considered. EPS PRO protective circuit and high-level inputs with Auto Turn-On Function (pluggable from 1-15 V or 15-40 V via jumper) as well as symmetrical RCA low-level outputs with 6 V/RMS are standard on board. Sound tuning redefined ...

  • DSP Chip from Analog Devices™ 32 Bit, 294 MHz, Full HD Audio 96 kHz
  • Signal Converter from AKM Velvet Sound™ A/D 32 bit, D/A 32 bit
  • HPF/LPF/BP @ 6-48 dB, Phase Shift, Time Correction 0 ~ 20 ms/0.01 ms steps
  • Up to 248 output EQs, 120 input EQs (PEQ/HSLF/LSLF) +/- 12 dB, 0.5 dB steps)
  • Input Mixer, Subwoofer Controller, Preset Auto Switch, Priority Input Mode
  • Input Sensitivity: Low Level 1 ~ 6 V/RMS, High Level 1 ~ 15 or 15 ~ 45 V/RMS
  • Signal-to-noise Ratio (A-weighted): Analog Input 106 dB, Digital Input 111 dB
  • Total Harmonic Distortion: Analog Input <0.0015%, Digital Input <0.0009%
  • Optional Accessories: BT-D (Bluetooth® module), RC-DQ (LCD remote control)


D66SP € 329,00*

Digital 6-Channel Sound Processor


6 x RCA Input, balanced

6 x High Level Input (via Molex Connector)

1 x USB Type B for PC Software

1 x RJ45 for Remote Controller / Extension Cable

1 x Power Input incl. REM OUT and MODE switch pin



6 x RCA @ 6 V RMS



105 x 40 x 185 mm


Owner's Manual

Test Review

DSP Software


RC-DQ € 79,00*

LCD Remote Controller for DIRECTION D66SP

Volume: Controls the overall volume of the music system

Mode: Selection of up to 8 different sound setups

Bass: Volume control for connected subwoofer


Including 5 meter cable and aluminum mounting housing


Owner's Manual

BT-D € 79,00*

Bluetooth® Module for DIRECTION D66SP

Enables Audio Streaming and DSP Control via App

Bluetooth-Version 5.0

Profiles: A2DP/AVRCP

Codecs: aptX, aptx LL, aptX HD, AAC, SBC


Owner's Manual

All trademarks, trade names or brands are the property of their respective owners.

 * Manufacturer's suggested retail price, changes and mistakes reserved