





Helix V Twelve DSP MK2 12 Channel Amplifier with 14 Channel DSP 75w RMS 64 Bit
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The Helix V Twelve DSP MK2 is a 12-channel Class GD amplifier with a built-in 14-channel 64-bit DSP, delivering 75 W RMS per channel at 4 ohms and up to 160 W RMS per channel at 2 ohms. It is part of Helix's V-series DSP amplifier range, designed for upgrading premium factory sound systems with a high channel count.
Key specifications
- Amplifier channels: 12, plus 2 processed RCA outputs (14 DSP channels total)
- Power RMS: 12 x 75 W @ 4 ohms, 12 x 120 W @ 2 ohms
- Max output per channel: up to 160 W RMS @ 2 ohms
- Amplifier class: Pure Class GD
- DSP: 64-bit fixed point, 295 MHz, 48 kHz sampling
- Inputs: 6 x RCA, 12 x high-level, 1 x optical SPDIF
- Signal converters: BurrBrown 24-bit A/D and D/A
- Dimensions (H x W x D): 44 x 220 x 220 mm
The new king of multitools
The V Twelve DSP MK2 is designed to solve the complexity of upgrading premium OE sound systems in modern vehicles. It combines 12 high-level inputs, 6 RCA inputs, 14 DSP channels and 12 output stages with up to 160 W RMS at 2 ohms — all in an ultra-compact housing with the footprint of just two envelopes. Need fewer channels? The Helix Amplify 206 DSP offers a more compact 6-channel amplifier with an 8-channel DSP.
Features
- Up to 160 W RMS output power per channel into 2 ohms
- Pure Class GD technology for high sound quality and efficiency
- Extremely powerful 64-bit fixed point audio DSP
- BurrBrown A/D and D/A signal converters
- ACO – Advanced 32-bit CoProcessor platform, enabling system and DSP features including:
- ISA (Input Signal Analyzer) and InputEQ for easy analysis and compensation of input signals
- SFX sound effects – Augmented Bass Processing, StageXpander, RealCenter and more
- 10 internal memory locations for sound setups
- 12-channel high-level input with up to 32 V RMS input sensitivity and ADEP.3 circuit
- Two processed RCA/Cinch outputs
- 1:1 IOR (Input/Output Routing) – same number of high-level inputs and amplifier outputs
- VCP (Virtual Channel Processing) for flexible configuration of complex sound systems
- SCP (Smart Control Port) for remote controls and accessories
- HEC slot for add-ons including Bluetooth HD Audio Streaming and High Resolution Audio Streaming via USB
- Automatic remote switch
- Start-Stop capability down to 6 V supply voltage
- Compact design with low heat dissipation
Virtual Channel Processing – signal routing for modern OE systems
Adapting to modern OE sound systems with a high input count makes signal routing inside an amplifier increasingly complex — especially when multiple inputs are mixed and then split into multi-way systems. Audiotec Fischer's multi-stage Virtual Channel Processing, combined with the DSP PC-Tool software, makes even highly complex system configurations straightforward. It allows free assignment of proprietary FX features such as RealCenter and Augmented Bass Processing. The V Twelve DSP MK2's high channel count also makes it equally suited to simpler 1-to-1 IOR routing applications.
Rapid processing power – thanks to ACO
Managing this many channels demands fast processing throughout the signal path. Audiotec Fischer's 32-bit ACO platform handles all control tasks, delivering exceptional speed for data communication with the DSP PC-Tool software and lightning-fast switching between up to ten sound setups. The ACO platform also enables sound effects including Augmented Bass Processing, StageXpander and RealCenter, alongside a 12-channel input EQ with Input Signal Analyzer (ISA) for easy analysis and compensation of OE radio input signals.
Perfect sound without compromises
The highly efficient Class GD technology and BurrBrown A/D and D/A converters deliver optimal sound performance, a strong signal-to-noise ratio and low distortion. Despite its high flexibility and compact dimensions, the V Twelve DSP MK2 holds its own against top-class competition.
Explore the full range in Helix DSP & Accessories.
Specification
| Frequency response | 20 Hz - 22,000 Hz |
|---|---|
| Signal converters A/D | BurrBrown 24 Bit |
| D/A | BurrBrown 24 Bit |
| Dimensions | (H x W x D) 44 x 220 x 220 mm / |
More specs
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What's Included
- 1 x Amplifier HELIX V TWELVE DSP MK2
- 1 x Control Input-to-SCP adaptor
- 1 x USB cable
- 2 x Allen key
- 1 x Mounting material
- 1 x Instruction manual
Helix
About the Helix HA11208
From our tech experts at CEN
The Helix V Twelve DSP MK2 is a 12-channel Class GD amplifier with a 14-channel 64-bit DSP built in. It delivers 12 x 75 W RMS at 4 ohms and 12 x 120 W at 2 ohms, with two extra processed RCA outputs, in a housing just 44 x 220 x 220 mm.
Who it suits
Owners of premium factory systems with many speakers who want every channel amplified and tuned from one compact unit. Its 12 high-level inputs take the factory signal directly. If fewer channels will do, the V Eight DSP MK2 offers eight amplified channels and ten DSP channels.
Our tech experts advise
There are also six RCA inputs and an optical input, and a Control Input-to-SCP adaptor comes in the box for Helix remotes. The amplifier does its best work once the DSP is set up with in-car measurements and time alignment. Installation and tuning are priced per vehicle, so get in touch with your make, model and year.
Explore the full Helix range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Helix
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Frequently Asked Questions
Q: How many channels does the HELIX V TWELVE DSP MK2 have?
A: It has 12 amplified speaker outputs and 2 processed RCA outputs, giving 14 DSP channels. Inputs are 12 high-level, 6 RCA and 1 optical SPDIF.
Q: How much power does the V TWELVE DSP MK2 deliver?
A: It delivers 12 x 75 W RMS at 4 ohms and 12 x 120 W RMS at 2 ohms, with up to 160 W RMS per channel at 2 ohms in typical multi-channel applications.
Q: Can the V TWELVE DSP MK2 connect to a factory sound system?
A: Yes. Its 12 high-level inputs accept up to 32 V with the ADEP.3 circuit, so it can take signals from factory head units and factory amplifiers. It also supports Start-Stop down to 6 V and has an automatic remote switch.
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