Home » HELIX NEXT V EIGHT DSP ULTIMATE 8-Channel Class HD Amplifier with 14-Channel DSP

HELIX NEXT V EIGHT DSP ULTIMATE 8-Channel Class HD Amplifier with 14-Channel DSP

SKU: HA18207
£1,149.99

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HELIX NEXT V EIGHT DSP ULTIMATE – powerful amplification and flexible system control

The HELIX NEXT V EIGHT DSP ULTIMATE combines eight channels of Class HD amplification with an integrated 14-channel DSP in a compact 44 x 220 x 180mm chassis. With 8 x 110W RMS into 4 ohms and 4 x 220W RMS into 2 ohms on channels 5–8, it provides a flexible foundation for demanding multi-channel speaker upgrades.

Twelve high-level inputs, six RCA inputs, optical SPDIF and USB PerfectStream support factory-system integration, aftermarket sources and direct digital audio connections. Six processed RCA outputs allow additional amplifiers to be added, extending the system beyond the eight internally amplified channels.

DSP PC-Tool 6 and advanced tuning

The 64-bit DSP and 32-bit ACO coprocessor support precise configuration through DSP PC-Tool 6. Virtual Channel Processing provides cross-channel group equalisers, flexible multi-way speaker configurations and Rear Attenuation. The Advanced Input Signal Analyzer and Input EQ help analyse and compensate for factory-source processing, while TuneEQ provides automated equaliser adjustment using a suitable measurement microphone, available separately.

Sound-processing options include RealCenter, Augmented Bass Processing, Dynamic Loudness Control and Remote Tone Control. ACO supports fast switching between up to ten sound setups, making the amplifier adaptable to different listening preferences.

USB PerfectStream and expandable connectivity

The bidirectional USB PerfectStream interface combines lossless audio streaming, AISA measurement-signal transmission and simultaneous DSP configuration through USB-C. It accepts audio streams up to 192kHz/32-bit; the internal DSP operates at a 48kHz sampling rate. Individual DSP-channel audio can also be returned to a computer for analysis.

The Extension Card 2.0 slot supports optional expansion modules for functions such as Bluetooth HD streaming and additional inputs. A Smart Control Port connects compatible optional remote controls and accessories. Expansion cards, remote controls and measurement equipment are not included.

Integration and efficient power delivery

The 12-channel high-level input accepts up to 32V RMS and incorporates ADEP.3 circuitry to support integration with modern factory-radio speaker diagnostics. Input-to-Output Routing allows high-level inputs to be individually assigned to amplifier or line outputs. Class HD amplification combines Class H supply-voltage control with Class D amplification to reduce losses, while SOP Max stabilises output power as the vehicle supply voltage changes.

The start-stop-capable power supply supports brief voltage drops to 6V. Auto Remote switching allows activation without a separate external remote signal, and configurable Power Save Mode switches off the internal amplifier stages and remote output after a period without music, returning to normal operation when a signal is detected.

Key features

  • Eight amplified channels and 14 processed DSP channels.
  • Six processed RCA outputs for expansion with external amplifiers.
  • Twelve high-level inputs with ADEP.3 diagnostic protection.
  • Six RCA inputs and an optical SPDIF input.
  • USB PerfectStream audio, measurement and configuration via USB-C.
  • 64-bit audio DSP and 32-bit ACO coprocessor.
  • Virtual Channel Processing, AISA, Input EQ and TuneEQ.
  • RealCenter, Augmented Bass Processing, Dynamic Loudness Control and Remote Tone Control.
  • Extension Card 2.0 slot and Smart Control Port.
  • SOP Max stabilised output power, Auto Remote and start-stop capability.
  • Configuration through DSP PC-Tool 6.

Technical specifications

  • Amplifier technology: Class HD.
  • RMS power at ≤1% THD+N, 4 ohms: channels 1–8, 8 x 110W.
  • RMS power at ≤1% THD+N, 2 ohms: channels 5–8, 4 x 220W.
  • Maximum output in typical multi-channel applications: up to 140W RMS per channel at 4 ohms on channels 1–8; up to 270W RMS per channel at 2 ohms on channels 5–8.
  • Inputs: 6 x RCA, 12 x high-level speaker inputs, 1 x optical SPDIF (12–96kHz), 1 x Extension Card 2.0 slot and 1 x USB PerfectStream.
  • RCA input sensitivity: 1–8V.
  • High-level input sensitivity: 4–32V.
  • RCA input impedance: 25kΩ.
  • High-level input impedance: 9–33Ω with ADEP.3.
  • Outputs: 8 x speaker, 6 x RCA and 2 x remote outputs.
  • RCA output voltage: 3V.
  • Frequency response: 15Hz–22,000Hz.
  • DSP resolution: 64-bit.
  • DSP power: 295MHz, 1.2 billion MAC operations per second.
  • Internal DSP sampling rate: 48kHz.
  • A/D and D/A converters: BurrBrown, 24-bit.
  • A-weighted signal-to-noise ratio: 107dB digital input; 102dB analogue input.
  • THD at 1kHz, 1W into 4 ohms: <0.007%.
  • THD+N at 1kHz, 1W into 4 ohms: <0.009%.
  • Damping factor: 100.
  • Operating voltage: 10.5–18V, with drops to 6V supported for a maximum of 5 seconds.
  • Power rating: DC 12V, 110A maximum.
  • Idle current: 750mA.
  • Maximum remote output current: 500mA.
  • Fuses: 2 x 40A LP-Mini (APS).
  • Operating temperature: -40°C to +70°C.
  • Dimensions (H x W x D): 44 x 220 x 180mm.
  • Manufacturer model code: HA18207.
  • EAN: 4057204315948.

Installation notes

The 14-channel DSP does not mean 14 amplified speaker channels: eight channels are amplified internally and six additional processed line outputs are provided for system expansion. 2-ohm operation is specified for channels 5–8 only; 1-ohm and bridged operation are not specified by the manufacturer. Application-dependent maximum output figures are separate from the RMS ratings at ≤1% THD+N. This model is designed for a 12V vehicle electrical system, not a 24V supply.

What's included

  • 1 x HELIX NEXT V EIGHT DSP ULTIMATE amplifier.
  • 1 x USB-C cable with USB-A adaptor.
  • 2 x Allen keys.
  • 4 x connection cables.
  • Mounting material.
  • Instruction manual.
UK Delivery Options:
  • Standard Delivery 2-3 Working Days £4.99
  • Courier Next Working Day £9.99
  • Courier Saturday £25

International Delivery Options:

Some European countries are included - Please email us to confirm we can send to you destination. Sales@CarAudioDirect.co.uk

Order Tracking:

Visit the DPD website Tracking page here - You will need your tracking number
Unwanted Goods:

In accordance with The Consumer Contracts Regulations (2015), you have a 14 working day 'cooling off period' in which you have the right to cancel your purchase and receive a full refund.

Manufacturer's warranty:

Beyond this 14 working day period, you are covered under the manufacturer's warranty which is typically 1 year (Excluding Open Box products). If your product becomes faulty during this period, you should contact our eSupport department, via the website, direct email or phone for a returns number. We will then arrange for your item to be repaired (or replaced, if appropriate with a new product) or provide details of the manufacturers local service centre.

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