QL812SP
SKU: 73405363301

QL812SP

Sale price$521.10 Regular price$579.00
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Description

QL812SPWith the two processors QUANTUM QL , ESX shows what real high end DSPs can do. Even the equipped components are the finest: not only that audiophile 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

With the two processors QUANTUM QL , ESX shows what real high-end DSPs can do. Even the equipped components are the finest: not only that audiophile 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. Thanks to the integrated Bluetooth receiver, the app version of the ESX DSP Toolkit can be used live and in real time from your smartphone - including HD audio streamingThe RC-DQ LCD remote control, which is available as an accessory, offers additional ease of use. 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 immediately as the best DSP "below 2000 Euros". This is outstanding insofar as it is only available for 1000 euros. Test conclusion: „With the QL812SP, ESX has made a big splash. It leads the way with its finest hardware and the new software is a big step forward with powerful audio capabilities. If you add the generous equipment including Bluetooth and APP, the QL812SP for sound freaks is the most attractive DSP on the market below 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.

Digital 12-Channel Sound Processor 8 x RCA Input, balanced 8 x High Level Input with EPS ® PRO up to 40 V/RMS (via Cable Connector) 1 x Optical Stereo Input, S/PDIF 96 kHz, 24 bit 1 x Coaxial Stereo Input, S/PDIF 96 kHz, 24 bit 1 x Bluetooth ® Stereo Input via Audio Streaming 1 x USB Type B Socket for PC Software 1 x RJ45 Input for Remote Controller 12 x RCA Output @ 6 V RMS (THD+N <0.0004%) Dimensions 226 x 43 x 120 mm

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 73405363301

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4.3 ★★★★★
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Richard Klementovich
Carnegie, US
★★★★★ 1
Cheaply Made
Not worth the money it costs imo
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 14, 2026
G
Verified Purchase
Geo L.
San Leandro, US
★★★★★ 5
Excellent durability for daily wear
Color: Gold Paperclip
I bought these earrings a year ago and I've been wearing them ever since! I never take them off because they are so comfortable. They never come unlatched and they are very durable. They look great and I love how they have some movement because of the two loops hooked together. For me the size is perfect, but you can always remove the dangling hoop to decrease the weight and create a smaller look. Even with booth hoops installed, they are so light that I cannot feel them in my ears. They would make a lovely gift because they look more expensive than the price I paid.
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Reviewed in the United States on October 8, 2025
A
Verified Purchase
Alvee
Omaha, US
★★★★★ 5
Good quality
Lovely earrings. A little smaller than I expected but Going to keep them. A reasonable purchase. Lightweight and clasp a little tight but better than loose.
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Reviewed in the United States on June 2, 2024
L
Verified Purchase
LaToyia Taylor
Lowell, US
★★★★★ 3
Cute but small
Color: Gold Paperclip
These are cute but they are smaller than I thought they would be. The only thing I did not like was that they kept coming apart. The two links would unhook and one hook would fall off. I squeezed them a little tighter and that helped.
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Reviewed in the United States on August 17, 2024
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Verified Purchase
Carolanne
Pawtucket, US
★★★★★ 5
Nice fit
I love these. A good fit for every day use.
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Reviewed in the United States on December 28, 2025

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