Amplifier with DSP processor Helix V Twelve DSP MK2

Helix V Twelve DSP MK2 Amplifier with DSP Processor

Multifunctional amplifier

Even when a vehicle is factory-equipped with a premium audio system whose amplifier often already has more than 10 channels, the sound quality does not always meet personal expectations. In many cases it is no longer possible to replace existing components, so for expansion only an amplifier with the same number of high-level inputs can be considered. For this reason the HELIX V TWELVE DSP MK2 offers not only 12 high-level inputs but also as many amplifier channels as needed to ensure optimal adaptation to existing multi-channel audio systems. In addition, the V TWELVE DSP MK2 is equipped with a digital input and an HEC slot, which allow the audio system to be expanded with additional signal sources such as Bluetooth streaming or integration of a high-resolution audio player. Management of the marvelous fourteen (14!) separate DSP channels is handled by a powerful integrated 64-bit DSP in combination with our unique DSP software for PC. The newly built, future-ready Smart Control Port (SCP) also simplifies accessory connection and, besides a compact and secure plug connection, offers an integrated power supply for remote controls such as CONDUCTOR or DIRECTOR, significantly reducing the number of required cables and thus installation space.

Virtual Channel Processing – modern signal routing

Adapting to modern factory audio systems makes routing the growing number of signal inputs inside the amplifier increasingly complex. Especially when several input signals are mixed together and then redistributed into multi-way systems, conventional routing concepts quickly reach their limits. The new multi-level Virtual Channel Processing system from Audiotec Fischer, combined with the well-known and user-friendly DSP PC-Tool software, allows even very complex system configurations to be easily mapped and proprietary sound FX functions such as RealCenter or Dynamic Bass Enhancement to be freely assigned – thereby achieving maximum flexibility and sound quality. Thanks to the huge number of channels, the V TWELVE DSP MK2 is also a prime example of applications where 1:1 routing (IOR) makes sense.

High processing speed – thanks to ACO

Such a large number of channels requires not only processing power in the signal path – Audiotec Fischer’s own 32-bit ACO platform handles all control tasks and ensures sufficient speed, especially for data communication with our DSP PC-Tool software, but also for lightning-fast switching between up to ten possible sound presets. Fantastic sound effects associated with the ACO platform, such as Augmented Bass Processing, StageXpander or RealCenter, come naturally with the V TWELVE DSP MK2, as does the 12-channel input equalizer including an Input Signal Analyzer (ISA) for easy analysis and compensation of input signals from original radios.

Perfect sound without compromises

The sound performance of the new HELIX V TWELVE DSP MK2 is as powerful as its feature set. Highly efficient Class GD technology and state-of-the-art AD and DA converters from BurrBrown ensure optimal audio performance, the best possible signal-to-noise ratio and minimal harmonic distortion. The V TWELVE DSP MK2 is therefore an absolute sonic masterpiece despite its extremely high flexibility and very compact design – and it does not have to hide from the absolute top performers.

Main features of the Helix V Twelve DSP MK2 amplifier

• Output power up to 160 W RMS per channel into 2 Ω.
• “Pure Class GD” concept for excellent sound quality combined with the best possible efficiency.
• Extremely powerful 64-bit fixed-point audio DSP.
• Signal A/D and D/A converters from BurrBrown.
• ACO – advanced 32-bit CoProcessor platform for system and DSP functions.
• ISA (Input Signal Analyzer) and InputEQ for easy analysis and compensation of input signals.
• Sound effects SFX – Augmented Bass Processing, StageXpander, RealCenter & Co.
• 10 internal memory slots for sound presets.
• High-performance 12-channel high-level input with input sensitivity up to 32 V RMS and ADEP.3 circuitry.
• Two processed RCA / Cinch outputs.
• 1:1 IOR (Input / Output Routing) – same number of high-level inputs and amplifier outputs.
• VCP (Virtual Channel Processing) enables even more flexible configuration for highly complex audio systems.
• Compact, future-proof SCP (Smart Control Port) for connection of remote controls and accessories.
• HEC slot for system accessories such as Bluetooth HD Audio Streaming, High Resolution Audio Streaming via USB, etc.
• Automatic remote turn-on.
• Start-Stop capability down to 6 V supply voltage.
• Compact design with low heat dissipation thanks to outstanding efficiency.

Class GD amplifier technology

Audiotec Fischer’s proprietary Pure Class GD concept takes the efficiency of conventional Class D amplifiers to the next level. By changing the internal supply voltage depending on the amplifier’s input signals, idle losses are significantly reduced and overall efficiency stays close to its maximum at all times. Heat dissipation is therefore almost negligible, allowing for minimal heat sinks and the most compact form factors. In addition, the Pure Class GD amplifier outperforms conventional Class D designs in terms of sound quality by implementing a fully differential signal path and an improved output filter design.

ACO – advanced 32-bit CoProcessor

The HELIX V EIGHT DSP MK2 contains an exceptionally powerful next-generation 32-bit CoProcessor for all monitoring and communication tasks, both internal and external. Unlike the generation of 8-bit predecessors, this MCU achieves much higher speeds for switching presets and data communication with the DSP PC-Tool software. Another significant advantage is the integrated native bootloader of the CoProcessor. It enables software updates of all parts of the integrated DSP to adapt the ADEP.3 circuitry controlled by microcontrollers to future diagnostic requirements of factory radios, or if the device is expanded with additional interfaces. Furthermore, thanks to new flash memory the ACO offers 10 regular memory presets instead of the usual two.

Intelligent high-level input ADEP.3

Modern factory-installed car radios include sophisticated options for diagnosing connected speakers. Especially the latest generation of radios is equipped with additional monitoring functions, so error messages and loss of specific functions (e.g. fader functions) often occur when an amplifier is connected – but not with the V EIGHT DSP MK2. The new ADEP.3 circuit (Advanced Diagnostics Error Protection, 3rd generation) avoids these issues without unnecessarily loading the radio’s speaker outputs at high volumes.

Start-Stop capability

The switched power supply of the HELIX V EIGHT DSP MK2 ensures a constant internal supply voltage even when the battery voltage drops to 6 V during engine start.

Power save mode

Power save mode is part of the default settings. It allows a significant reduction of the power consumption of amplifiers connected to the HELIX V EIGHT DSP MK2 as soon as no input signal is present for more than 60 seconds. Please note that in many modern cars with CAN or other internal bus architectures, the radio can remain “invisibly” on for up to 45 minutes even after locking and leaving the vehicle. Once Power Save Mode is active, the remote output and connected amplifiers will be switched off. If an audio signal is applied, the V8 EST DSP MK2 activates the remote output within one second. It is possible to change the shut-off time to 60 seconds or to completely disable Power Save Mode using the DSP PC-Tool software.

About the brand

HELIX by Audiotec Fischer is a German brand of high-end car audio equipment that has been among the world leaders in amplifiers and DSP processors for more than 35 years. HELIX is considered a leader in digital signal processors. It offers some of the most advanced and highest-quality DSP processors in the world, enabling an experienced technician to fine-tune any audio system to perfection and bring an authentic hi‑fi experience into the car. The combination of precise German engineering, state-of-the-art technologies and innovative design delivers clean, dynamic and detailed sound that has earned the appreciation of audiophiles around the world. HELIX products are characterized by high efficiency, reliability and perfect integration into modern cars. They are the ideal choice for demanding users who require the best possible sound without compromise. Helix belongs, together with the Brax and Match brands, to the German manufacturer Audiotec Fischer.

Product comments

Evaluation

• Car amplifiers 12-channel car amplifiers
• Car amplifiers Amplifiers with integrated DSP processor
• German sound system manufacturer HELIX

Product assembly

BMW 4 (G22)Skoda Octavia 4 RS