Helix NEXT V EIGHT DSP ULTIMATE

Helix NEXT V EIGHT DSP ULTIMATE – next-generation 8-channel all-in-one DSP amplifier

The NEXT V EIGHT DSP ULTIMATE is the next generation of the HELIX all-in-one multi-channel DSP amplifier, with up to 66% more performance than its predecessor according to Audiotec Fischer. It combines an 8-channel amplifier with a 14-channel DSP that now provides six line outputs instead of two, so additional amplifiers can easily be added. Twelve highlevel inputs with ADEP.3 make it suited to OEM integration, and up to ten sound setups can be stored and switched quickly. Made in Germany; the page also presents EISA and Car-Hifi award distinctions.

The amplifier uses a newer generation of TI Class D technology in a Class HD design, which combines Class H and Class D principles by varying the internal supply voltage with the signal to reduce idle losses. USB PerfectStream allows lossless streaming up to 192 kHz / 32 bit, AISA measurements and DSP configuration over USB-C. The 32-bit ACO coprocessor runs AISA and the Input EQ, DLC and RTC, TuneEQ and SFX functions, while Stabilized Output Power (SOP Max) keeps output stable regardless of supply voltage.

Key Features

• 8-channel Class HD amplifier: 8 x 110 W RMS at 4 Ohm; channels 5–8 deliver 4 x 220 W RMS at 2 Ohm (up to 270 W RMS max.).
• 14 DSP channels: 64-bit fixed-point audio DSP at 295 MHz (1.2 billion MAC/s).
• 12-channel highlevel input: up to 32 V sensitivity with ADEP.3 for OEM integration.
• 1:1 input-to-output routing (IOR): each highlevel input can be assigned to an amplifier or line output.
• USB PerfectStream: lossless streaming up to 192 kHz / 32 bit, real-time per-channel return for AISA, DSP configuration via USB-C.
• Six processed line outputs: max. 3 V, for easy expansion with further amplifiers.
• Virtual Channel Processing (VCP): cross-channel group EQs, multi-way SFX speaker configuration and rear attenuation.
• ACO 32-bit coprocessor: AISA and Input EQ, DLC and RTC, TuneEQ and SFX (Augmented Bass Processing, RealCenter and more).
• Extension Card 2.0 slot: for Bluetooth HD, additional analog inputs or future sources.
• Stabilized Output Power (SOP Max): constant output power independent of the input voltage.
• Smart Control Port (SCP): for remote controls and accessories.
• Auto Remote switch: turns the amplifier on without an external remote signal.

Inputs & Outputs

• 6 x RCA inputs, sensitivity 1–8 V, input impedance 25 kOhm
• 12 x highlevel speaker inputs, sensitivity 4–32 V, input impedance 9–33 Ohm with ADEP.3
• 1 x optical S/PDIF input (12–96 kHz)
• 1 x Extension Card 2.0 slot
• 1 x USB PerfectStream (USB-C)
• 8 x speaker outputs
• 6 x RCA line outputs (processed), output voltage 3 V
• 2 x remote outputs, max. remote output current 500 mA

Power & Amplifier Section

• Channels 1–8: 8 x 110 W RMS at 4 Ohm; channels 5–8: 4 x 220 W RMS at 2 Ohm (≤1% THD+N)
• Max. output per channel in typical multi-channel setups: up to 140 W RMS at 4 Ohm (ch. 1–8), up to 270 W RMS at 2 Ohm (ch. 5–8)
• Class HD amplifier technology based on a newer generation of TI Class D
• THD below 0.007% and THD+N below 0.009% (1 kHz, 1 W into 4 Ohm); damping factor 100; frequency response 15 Hz–22 kHz
• SNR 107 dB (digital input) and 102 dB (analog input), A-weighted
• Fusing 2 x 40 A LP-Mini (APS); max. 110 A at 12 V DC; idle current 750 mA

DSP & Sound Tuning

• 64-bit fixed-point audio DSP, 295 MHz, 48 kHz sampling rate, 14 channels
• BurrBrown 24-bit A/D and D/A converters
• AISA (Advanced Input Signal Analyzer) with Input EQ for factory radio signals
• TuneEQ: input, virtual and output EQs are adjusted to a reference curve from one measurement per channel or channel pair (e.g. with the AMI Tuning Kit); parametric EQ with frequency, Q and gain
• Dynamic Loudness Control (DLC) and Remote Tone Control (RTC)
• RealCenter: center signal derived from the front left/right stereo content; no center output for a one-sided signal
• Augmented Bass Processing: Dynamic Bass Enhancement (input-dependent low-frequency gain and subsonic cutoff) and SubXpander (subharmonics between 50 and 100 Hz)
• Configuration via DSP PC-Tool 6

Installation & Connectivity Notes

• Operating voltage 10.5–18 V (max. 5 s down to 6 V); start-stop capable supply with input range up to 18 V, suitable for EVs
• Power Save Mode switches off the amplifier stages and remote output after a period without signal and returns in about 2 s; delay adjustable or can be disabled in PC-Tool
• Optional accessories listed: Extension Card 2.0 – BT HD and Extension Card 2.0 – DIGITAL IN
• Operating temperature range −40 °C to +70 °C

Technical Specifications

* In typical multi-channel applications (2- / 3-way system + rear + subwoofer)

Scope of Delivery

1 x Amplifier HELIX NEXT V EIGHT DSP ULTIMATE
1 x USB-C cable with USB-A adaptor
2 x Allen key
4 x Connection cable
1 x Mounting material
1 x Instruction manual