QL810SP
Digital 10-channel sound processor
With the two QUANTUM QL processors , ESX shows what real high-end DSPs can do. The components themselves are top-notch: not only are high-quality 32-bit converters from AKM's 5 series installed, but two of the ADAU1452, the best processors from Analog Devices, are used. This is where the wheat is separated from the chaff: conventional DSPs usually only have one DSP core. However, if a DSP has many channels and the corresponding equipment, computing power becomes scarce. Not so with the new ESX top models, on the contrary. The two QL DSPs have so much reserve that they can easily process not only 12 channels, but the developers also implemented the revolutionary ESX Expert Staging Equalizer with balance and level function, which allows for further refinements in fine-tuning, in addition to numerous functions. Thanks to the integrated Bluetooth receiver, the app version of the ESX DSP Toolkit can be used live and in real time from a smartphone - HD audio streaming included. The LCD remote control RC-DQ, available as an accessory, offers further ease of use .
The entire audio processing power is also appropriately controlled in the ESX DSPs. A powerful ARM Cortex ® M4 high-performance CPU with 240 MHz and internal 1024 kB flash memory takes care of the command processing. This is the only way to work in real time with maximum performance. With the new QL812SP, ESX is now cementing its high standards in the field of high-end DSPs: In the test review in the specialist magazine Car & Hifi 3/2022, the QL812SP was so convincing that the test editors not only classify it as a highlight from now on, but also see it as the best DSP "on this side of 2000 euros". This is outstanding in that it is only available for just 1000 euros.
Test conclusion: "ESX has achieved a great success with the QL812SP. With its finest hardware, it is at the forefront and the new software is a big step forward with powerful audio functions. If you add the generous features including Bluetooth and app, the QL812SP is the most attractive DSP on the market for sound freaks for under 2000 euros." (Elmar Michels, test editor)
Important note: To run the ESX DSP Toolkit app on an Android smartphone, Bluetooth and GPS must be activated.
Characteristics
Analog Devices™ DSP Chip, ADAU1452 Dual 2 x 32 Bit Processor, 294 MHz, Full HD Audio 96 kHz
AKM Velvet Sound™ Series 5 signal converter, A/D 32 bit, D/A 32 bit
HP/LP/BP @ 6-48 dB, phase shift, time correction 0 ~ 20 ms / 0.01 ms steps
Input mixer, subwoofer control, priority input mode for digital input signals
DSP control via ESX DSP Toolkit
- PC software for Microsoft ® Windows™ 10 or newer
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 111 dB, Digital input 117 dB
Distortion factor: Analogue input <0.001%, Digital input <0.0004%
Integrated Bluetooth ® receiver including antenna for controlling the DSP via app and full HD audio streaming
Bluetooth version 5.0, profiles: A2DP/AVRCP, codecs: aptX, aptx LL, AAC, SBC
REM OUT function for external devices, MODE switching input for e.g. convertible tops (Preset Auto Switch)
Optional accessories: RC-DQ (LCD remote control)
Technical data
Digital 10-channel sound processor
8 x RCA input
8 x high-level input with EPS PRO up to 40 V/RMS (via Molex)
1 x Optical stereo input, S/PDIF 96 kHz, 24 bit
1 x coaxial stereo input, S/PDIF 192 kHz, 24 bit
1 x Bluetooth ® stereo input via audio streaming
1 x USB socket for PC software
1 x RJ45 socket for remote control
10 x RCA output @ 6 V RMS (THD+N <0.0004%)
Dimensions 226 x 43 x 120 mm