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ESX Quantum QL812SP 12-Channel DSP
SKU:  QL812SP
EAN:  4251950315089

Quantum QL812SP

SKU:  QL812SP
EAN:  4251950315089

Technical Highlights

  • Dual 2 x 32 bit processor, 294 MHz, audio 96 kHz, 12 channels.
  • Input mixer, subwoofer control, 1~6 V/RMS, 1~15 or 15~45 V/RMS.
  • Bluetooth 5.0, aptX codecs, Full HD Audio, multi compatible.
  • More technical details
€999,00
€999,00 €999,00
5% discount with credit card
inkl. VAT , possibly plus shipping
Delivery
Jun 5, - Jun 8,
x piece
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€999,00
€999,00 €999,00

Quantum QL812SP by ESX

Quantum QL812SP is a 12-Channel DSP from ESX featuring Analog Devices ADAU1452 Dual 2 x 32 Bit processors (294 MHz, 96 kHz) and AKM Velvet Sound Series 5 signal converters (A/D 32 Bit, D/A 32 Bit). Outputs: 12 x RCA/Phono with 6 V RMS and 31-band EQ per channel including PEQ, Highshelf, and Lowshelf. Included is the ESX Expert Staging Equalizer with balance and level function, HP/LP/BP filters with 6–48 dB, phase shift, and delay correction from 0–20 ms in 0.01 ms steps, along with an input mixer and subwoofer controller. Inputs: 8 x RCA/Phono, 8 x high level with EPS PRO up to 40 V RMS (via Molex Plug), 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, 1 x RJ45, 1 x power input including REM OUT and MODE. Integrated Bluetooth receiver including antenna for control via app and Full HD audio streaming with Bluetooth 5.0, profiles A2DP/AVRCP, and codecs aptX, aptX LL, aptX HD, AAC, SBC. 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; total harmonic distortion: analog input <0.001%, digital input <0.0004%. Dimensions: 226 x 43 x 120 mm; optional RC-DQ LCD remote control.

Features
  • 12-Channel DSP
  • Analog Devices ADAU1452 Dual 2 x 32 Bit, 294 MHz, 96 kHz
  • AKM Velvet Sound Series 5 signal converters, A/D 32 Bit, D/A 32 Bit
  • ESX Expert Staging Equalizer with balance and level function
  • HP/LP/BP 6–48 dB
  • Phase shift
  • Delay correction 0–20 ms in 0.01 ms steps
  • Input mixer
  • Subwoofer controller
  • Integrated Bluetooth receiver including antenna
  • Bluetooth 5.0
  • Profiles A2DP/AVRCP
  • Codecs aptX, aptX LL, aptX HD, AAC, SBC
  • Optional RC-DQ LCD remote control
  • 12 x RCA/Phono output 6 V RMS
  • 31-band EQ per output
  • PEQ, Highshelf, Lowshelf
Technical Specifications
  • Input sensitivity low level: 1–6 V RMS
  • Input sensitivity high level: 1–15 or 15–45 V RMS
  • Signal-to-noise ratio (A-weighted) analog input: 111 dB
  • Signal-to-noise ratio (A-weighted) digital input: 117 dB
  • Total harmonic distortion analog input: <0.001%
  • Total harmonic distortion digital input: <0.0004%
  • 8 x RCA/Phono input
  • 8 x high level input with EPS PRO up to 40 V RMS (via Molex Plug)
  • 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
  • 1 x RJ45 for remote control/extension
  • 1 x power input including REM OUT and MODE switch input
  • 12 x RCA/Phono output 6 V RMS, THD+N <0.0004%
  • Dimensions: 226 x 43 x 120 mm

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ESX Quantum QL812SP Datasheet

Open datasheet

Frequently Asked Questions about Quantum QL812SP

What audio processors does the Quantum QL812SP use?

The Quantum QL812SP utilizes two outstanding processors from Analog Devices, the ADAU1452 Dual 2 x 32 Bit processors with a clock rate of 294 MHz. These processors provide exceptional DSP performance for demanding audio applications. They enable the device to process 12 channels simultaneously, allowing for impressive flexibility in sound design. The high clock rate allows for fast and precise calculations, enabling the sound processor to effortlessly handle audio signals in real-time. Together with the 32-bit converters from AKM Velvet Sound Series 5, this ensures that the audio quality remains at a high-end level.

What converter technology is integrated into the Quantum QL812SP?

The Quantum QL812SP features 32-bit A/D and D/A converters from AKM's Velvet Sound Series 5. These converters are known for their excellent sound quality and precise signal conversion. The use of these AKM converters guarantees lossless and detailed audio processing that satisfies even the most demanding listeners. The 32-bit processing ensures that even the finest details in the audio signal are captured and reproduced, which is particularly important for high-definition audio. The combination with Full HD Audio 96 kHz allows for an impressive sound image.

How is the signal processing configured in the Quantum QL812SP?

The Quantum QL812SP has a high/low/bandpass filter with a variable cutoff frequency of 6 to 48 dB and can adjust the phase and delays from 0 to 20 ms in 0.01 ms steps. This detailed adjustability allows for precise tuning of the frequency response to the individual needs and conditions of the vehicle or room. With the integrated subwoofer controller and the input mixer, frequency ranges can be controlled with great accuracy to achieve optimal sound balance. These options allow for highly personalized sound tuning.

What connection options does the Quantum QL812SP offer?

The Quantum QL812SP offers numerous connections: 8 RCA inputs, 8 high-level inputs with EPS PRO range up to 40 V/RMS, an optical and coaxial S/PDIF input with 192 kHz at 24 Bit, and a Bluetooth® input. This facilitates integration into various system configurations, as both analog and digital input options are covered. Additionally, there is a USB Type B port for PC software for detailed sound processing programming, as well as an RJ45 port for remote control options. Notably, the integrated Bluetooth® receiver with aptX HD allows for high-quality audio streaming.

How does the Bluetooth® integration work in the Quantum QL812SP?

The Bluetooth® integration in the Quantum QL812SP uses version 5.0, which supports profiles like A2DP and AVRCP as well as codecs like aptX, aptX LL, aptX HD, AAC, and SBC. This enables a wireless connection with high audio quality and minimal latency. The integrated receiver allows not only Full HD audio streaming but also control of the DSP via an app, meaning you can easily adjust sound profiles directly from your smartphone. This technology offers mobility without compromising audio quality, ideal for modern audio setups.

What features does the equalizer of the Quantum QL812SP offer?

The Quantum QL812SP is equipped with an ESX Expert Staging Equalizer, which provides nuanced sound tuning. Each of the 12 outputs has a 31-band equalizer with various modes such as PEQ (parametric equalizer) and Highshelf/Lowshelf. These features allow for precise adjustments of the sound signature to meet individual listening preferences. Furthermore, the balance and level function enables exact fine-tuning, ensuring that even the most challenging acoustic requirements can be met. This finesse in sound processing makes the QL812SP an indispensable tool in any audiophile setup.

How do the dimensions of the Quantum QL812SP affect installation?

The dimensions of the Quantum QL812SP are 226 x 43 x 120 mm, which represents a compact design. These dimensions allow for flexible integration into various vehicle models or home audio systems, even in limited installation space. The compactness of the device enables easy placement behind the dashboard or in a technical housing. The compact design contributes to the DSP being used in existing audio systems without significant modifications or alterations. This size is particularly suitable for users who prefer a discreet installation.

What sensitivity settings does the Quantum QL812SP have?

The Quantum QL812SP features separate input sensitivity settings for low-level and high-level inputs. The low-level inputs have a sensitivity range of 1 to 6 V/RMS, while the high-level inputs offer greater flexibility with either 1 to 15 or 15 to 45 V/RMS. This range allows the user to connect the DSP to a variety of different signal sources, whether directly from the car radio or from an amplifier with high-level outputs. The flexible sensitivity range ensures that the QL812SP maintains full signal integrity regardless of the input source.

What is the signal-to-noise ratio of the Quantum QL812SP?

The Quantum QL812SP offers a signal-to-noise ratio of 111 dB with its analog input and even 117 dB with the digital input, both A-weighted. This high signal-to-noise ratio is crucial for reproducing fine audio details without intrusive background noise. The high values ensure that even at high volume or when using highly sensitive speakers, the sound remains clean and rich. Especially with high-quality audio content, the benefits of a high signal-to-noise ratio are reflected in clear and distortion-free playback, which delights audiophile listeners.

What are the distortion factors of the Quantum QL812SP?

The Quantum QL812SP impresses with extremely low distortion factors: the analog input has a distortion factor of less than 0.001%, while the digital input is even below 0.0004%. These low values represent an extremely low distortion of the audio signals, which preserves the natural sound character, especially with demanding musical pieces. A low distortion factor is essential to reproduce the original signal as faithfully as possible. This makes the QL812SP a prime device for audiophiles who strive for perfection in music playback and do not want to make any compromises.

Manufacturer information / responsible person

Audio Design Loudspeaker Sales GmbH
Am Breilingsweg 3
76709 Kronau
Germany

Authorized Managing Director:
Bruno Dammert

Contact: info@audiodesign.de

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