ESX QL810SP - 10-channel DSP processor

With the two processors QL810SP and QL812SP, ESX shows what real high-end DSPs can do. Even the assembly is of the finest: not only that noble 32-bit converters from AKM's 5-series were installed, two of the ADAU1452 and thus the best processors from Analog Devices are used. This is exactly 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 enables further refinements in fine tuning, in addition to numerous functions .

The entire audio computing power is also properly 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 command processing. This is the only way to work in real time with maximum performance. With the new QL812SP, ESX is now also cementing its high standards in the area 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 classified it as a highlight, but also saw it as the best DSP "this side of the 2000 euros". This is outstanding insofar as it is only available for 1000 euros.

• Analog Devices™ 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, delay correction 0 ~ 20 ms / 0.01 ms steps
• Input mixer, subwoofer control
• Input sensitivity: low level 1~6 V/RMS, high level 1~15 or 15~45V/RMS
• Signal-to-noise ratio (A-weighted): Analog input 111dB,  Digital input 117dB
• THD+N: Analog 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, aptX HD, AAC, SBC
• Optional RC-DQ (LCD remote control)

QUANTUM QL810SP

• 8 x RCA/cinch input 
• 8 x high-level input with EPS PRO up to 40 V/RMS (via Molex connector) 
• 1 x optical stereo, S/PDIF 192 kHz, 24 bit 
• 1 x coaxial stereo, S/PDIF 192 kHz , 24 bit 
• 1 x Bluetooth® stereo 
• 1 x USB type B for PC software
< li>1 x RJ45 for remote control/extension 
• 1 x power input incl. REM OUT and MODE switching input 

Outputs

• 10 x RCA @ 6 V RMS (THD+N <0.0004%) each with 31 band EQ, PEQ / Highshelf / Lowshelf 

Dimensions: 226 x 43 x 120mm