HELIX V Eight DSP ULTIMATE | Amplifier 4x110 Watts + 4x220 Watts

The multi-tool in its ultimate evolution

With the V EIGHT DSP ULTIMATE comes the ultimate evolutionary stage of the renowned all-round talent. Every aspect of this 8-channel amplifier with integrated 14-channel DSP has been rethought, refined, and consistently raised to a new level – from signal processing and connectivity to impressive performance and sound quality. The V EIGHT DSP ULTIMATE is not simply an upgrade, but the result of ambition and the desire to elevate multi-channel DSP amplifiers to a new level.

State-of-the-art amplifier technology with next-generation performance

At the heart of the V EIGHT DSP ULTIMATE lies a new generation of highly efficient TI Class D technology, which offers a tremendous power increase of up to 66% compared to its predecessor – coupled with further refined sound quality and maximum speaker control. With 8 x 110 watts RMS at 4 ohms or 4 x 110 watts RMS at 4 ohms + 4 x 220 watts RMS at 2 ohms, the V EIGHT DSP ULTIMATE delivers impressive power reserves for even the most demanding loudspeaker systems. Thanks to the significantly increased system output, even complex systems with the highest requirements can be operated with ease – precisely, powerfully, and dynamically. Maximum connectivity for modern multi-channel systems: The V EIGHT DSP ULTIMATE offers an unprecedented range of connection options – 12 high-level inputs, 6 RCA inputs, an optical digital input, the Extension Card 2.0, and the brand-new USB PerfectStream are all ready to support any sound concept, whether it's OEM integration, adaptation to an aftermarket radio, or direct connection of smartphones/tablets.
This amplifier also offers ideal conditions on the output side – in addition to the eight speaker outputs, the V EIGHT DSP ULTIMATE has six line outputs for optimally driving additional amplifiers.

Perfected sound tuning thanks to optimization for the new DSP PC-Tool 6

The HELIX V EIGHT DSP ULTIMATE has been consistently designed to meet the requirements of demanding multi-channel systems – and with its integrated 14-channel signal processor, it offers a significant expansion of options compared to its predecessor. With its numerous processed DSP channels, now including six line outputs instead of two, it offers maximum flexibility for implementing complex system configurations.

This is further enhanced by the combination with our new DSP PC-Tool 6: The expanded setting options, numerous intelligent automatic functions, and the further perfected user interface enable particularly efficient fine-tuning of the sound.

This allows every setup to be adapted down to the smallest detail to the acoustic conditions and individual listening preferences – for a sound experience of the highest caliber.

ACO – Advanced 32-bit Co-Processor Platform

Rapid computing power not only in the signal path – the particularly powerful 32-bit ACO platform takes over all control tasks and provides the crucial speed boost, especially in data communication with our DSP PC-Tool software, but also in lightning-fast switching between up to ten possible sound setups. But ACO offers much more – fantastic sound effects such as Augmented Bass Processing or RealCenter, dynamic processing such as Dynamic Loudness Control (DLC) or Remote Tone Control (RTC) are implemented, as is the new Advanced Input Signal Analyzer (AISA) for easy analysis and compensation of the input signals from factory sound systems that already include sound settings.

Control and high-end audio in perfect combination – thanks to USB PerfectStream

With the further developed The ACO platform is used for the first time in the HELIX V EIGHT DSP ULTIMATE with USB PerfectStream – an interface that sets new standards in connectivity and user-friendliness. This adds a bidirectional USB audio interface to the amplifier, enabling lossless audio streaming from smartphones/tablets or PCs, the transmission of measurement signals for AISA, and DSP PC tool configuration. The ACO platform acts as an intelligent USB hub for coordination. Particularly clever: USB PerfectStream eliminates the need for external measurement interfaces for AISA, allowing for extremely convenient and precise analysis of input signals from factory-installed sound systems – a real advantage for professional integration and rapid tuning. Extension Card 2.0 – Maximum Future-Proofing The new Extension Card 2.0 slot is used for the first time – a redesigned expansion system with a screw-on plastic cover and cross-series compatibility. Whether Bluetooth® HD or additional analog inputs – the V EIGHT DSP ULTIMATE can be expanded modularly and precisely adapted to individual needs. The Extension Card 2.0 slot is therefore a future-proof concept for connecting audio interfaces.

Features

• 14 DSP channels for maximum flexibility in multi-channel sound upgrades
• 8-channel amplifier with optimized Class HD concept, which combines excellent sound quality with outstanding efficiency
• Heavy-duty 12-channel high-level input with up to 32 V RMS input sensitivity and ADEP.3 circuitry for seamless integration into OEM sound systems
• 1:1 IOR (Input-to-Output Routing) – all high-level inputs can each be assigned to an amplifier or line output and thus routed through from input to output
• Up to 270 W RMS maximum power per channel at 2 Ω
• USB PerfectStream technology – lossless high-resolution audio streaming (up to 192 kHz / 32 bit),

ACO – Advanced 32-bit Co-Processor platform for system and DSP features:

• AISA (Advanced Input Signal Analyzer) and InputEQ for easy analysis and correction of input signals
• DLC (Dynamic Loudness Control) and RTC (Remote Tone Control) for dynamic, volume-dependent adjustment of treble and bass
• Proprietary TuneEQ function for automated adjustment of input, virtual, and output equalizers
• SFX sound effects – Augmented Bass Processing, RealCenter & Co.

Compact, future-proof SCP (Smart Control Port) for connecting remote controls and other accessories

Extension Card 2.0 slot for integrating additional interfaces such as Bluetooth® HD Audio, additional analog inputs, or future signal sources

Optical digital input in SPDIF format and six RCA outputs with a maximum output voltage of 3 volts

Stabilized Output Power technology (SOP Max) for consistently stable output power – full performance regardless of the operating voltage

Intelligent energy management for perfect voltage stability across all modern vehicle platforms

Start-stop compatible power supply with extended input voltage range up to 18 V – ideal for modern electric vehicles

Auto remote switch for automatic amplifier activation without an additional remote line

Extremely compact dimensions and low heat generation thanks to very high Efficiency

Maximum control with DSP PC-Tool 6 – professional software for optimal amplifier configuration and precise sound tuning in the vehicle

Special Features:

Class HD Amplifier Technology

The unique Class HD concept combines the advantages of Class H technology with the principle of a Class D amplifier. The result is unsurpassed efficiency that surpasses even conventional Class D amplifiers.
The advantages of the Class HD concept are most apparent at low and medium output levels. The internal supply voltage of the power stages is continuously regulated depending on the amplitude of the input signal. This drastically reduces the average power dissipation generated by the amplifier.

USB PerfectStream

USB PerfectStream technology adds a powerful, bidirectional USB audio interface to the amplifier. It enables lossless high-resolution audio streaming up to 192 kHz / 32-bit directly into the DSP, allowing music content or test signals for calibration to be streamed directly from a computer or smartphone to the DSP. Furthermore, USB PerfectStream also offers the option of forwarding the audio data of individual DSP channels directly to the computer for high-resolution, real-time processing in our Advanced Input Signal Analyzer, and for correction and optimization using input processing.

ACO – Advanced 32-Bit CoProcessor

The ACO platform (Advanced CoProcessor) handles all control and communication tasks within the DSP system. It ensures extremely fast system startup, lightning-fast switching between up to ten sound setups, and smooth, latency-free data communication with the DSP PC-Tool software. Furthermore, ACO forms the basis for numerous additional functions – including our SFX sound effects such as "Augmented Bass Processing" and "RealCenter," features like Dynamic Loudness Control (DLC) and Remote Tone Control (RTC), and a channel-separated input EQ with integrated Advanced Input Signal Analyzer (AISA) for easy analysis and correction of input signals that already include factory equalization. ACO thus stands for maximum performance, flexibility, and future-proofing. Intelligent High-Level Input ADEP.3 Modern, factory-installed car radios are becoming increasingly intelligent in diagnosing connected speakers. The latest generation, in particular, is equipped with additional monitoring functions, so connecting an additional amplifier can trigger error messages or even malfunctions. The ADEP.3 circuit (Generation 3) meets the latest requirements of modern OEM car radios and ensures seamless integration. Controlled via the ACO platform, the system is future-proof and can flexibly adapt to future changes in factory radio diagnostic systems. This guarantees maximum compatibility with virtually all OE radios – without placing unnecessary strain on the speaker outputs at high levels. Power Save Mode: The Power Save Mode reduces the power consumption of the amplifier (and any additional connected amplifiers) when no music signal is detected for a certain period. When Power Save Mode is activated, the internal amplifier stages and the remote output are automatically switched off. If a music signal is subsequently present again, the device returns to normal operation within approximately 2 seconds.
The shutdown delay can be varied or completely deactivated via the DSP PC-Tool software.

Start-Stop Capability

The power supply in the HELIX V EIGHT DSP ULTIMATE amplifier ensures a stable internal voltage supply even during brief dips down to 6 volts. This guarantees that the amplifier remains fully functional even when the engine is started.

DSP Features

TuneEQ

TuneEQ is an extremely flexible and particularly easy-to-use function for automated frequency response correction. A single measurement per audio channel or channel pair with a suitable measurement microphone (such as our AMI Tuning Kit) is sufficient for TuneEQ to automatically and precisely adjust the equalizers to the desired reference curve. TuneEQ utilizes the full functionality of the parametric equalizer, including center frequency, Q factor, and gain. And because the highly complex calculations required for this run in the background, you also save a lot of time when tuning your sound with TuneEQ. RealCenter: The "RealCenter" function is a proprietary algorithm from Audiotec Fischer that emphasizes the monaural information of the left and right front channels to create a unique center signal. Unlike conventional methods that simply sum the channels, this method also dynamically controls the center signal based on the stereo information content of the left and right channels. This means that the center channel will not reproduce a signal if only the left or only the right channel is supplying an audio signal. With conventional algorithms, the center channel would only be 6 dB quieter in this case. Audiotec Fischer's "RealCenter" thus enables a unique, wide-ranging soundstage – and is equally optimal for driver and passenger! The disadvantages of a conventional center channel, such as an intrusive, narrow spatial sound presentation, are finally a thing of the past.

Augmented Bass Processing

Audiotec Fischer's proprietary "Augmented Bass Processing," consisting of two revolutionary sound features: "Dynamic Bass Enhancement" and "SubXpander." These have been specially developed to dramatically improve the bass response of subwoofers.

"Dynamic Bass Enhancement" ingeniously combines maximum deep bass foundation and high maximum sound pressure level – regardless of the music genre being listened to or the sound settings on the radio. Depending on the input signal, "Dynamic Bass Enhancement" amplifies the lower frequency range and simultaneously varies the cutoff frequency of the subsonic filter. The result is significantly more powerful, deeper bass reproduction at low and medium volumes without the risk of mechanically or electrically overloading the subwoofer at high volumes. It's simply fascinating what kind of bass performance is suddenly possible. For those who want the low frequencies even deeper and "blacker," the "SubXpander" can also be activated. This adds subharmonic tones to the fundamental frequencies in the 50 to 100 Hz range.

Technical data

Performance RMS ≤ 1% THD+N
- @ 4 Ohm	Channel 1 - 8: 8 x 110 watts
- @ 2 ohms	Channel 5 - 8: 4 x 220 watts
- @ 1 ohm	-
- bridged to 4 Ohm	-
- bridged to 2 ohms	-
Max. Power per channel*	Channels 1 - 8: up to 140 watts RMS @ 4 ohms Channels 5 - 8: up to 270 watts RMS @ 2 ohms
Amplifier Technology	Class HD
Inputs	6 x RCA 12 x High-level speaker inputs 1 x Optical SPDIF (12 - 96 kHz) 1 x Remote In 1 x USB Audio
Input Sensitivity	RCA: 1 - 8 volts High-level: 4 - 32 volts
Input Impedance	RCA: 25 kOhm High Level: 9 - 33 Ohm with ADEP.3
Outputs	8 x Speaker Outputs 6 x RCA 2 x Remote Out
RCA Output Voltage	3 Volts
Frequency Range	15 Hz - 22,000 Hz
DSP Resolution	64 Bit
DSP Computing power	295 MHz (1.2 billion MAC operations/second)
Sampling rate	48 kHz
DSP type	Audio signal processor
Signal converter	A/D: Burr-Brown 24-bit D/A: Burr-Brown 24-bit
Signal-to-noise ratio (A-weighted)	Digital input: 107 dB Analog input: 102 dB
Total harmonic distortion (THD @ 1 kHz, 1 W into 4 ohms)	< 0.007%
Tonal harmonic distortion (THD+N @ 1 kHz, 1 W into 4 ohms)	< 0.009%
Damping Factor	100
Operating Voltage	10.5 - 18 Volts (max. 5 sec. down to 6 Volts)
Power Consumption	DC 12 V ⎓ 110 A max.
No-Load Current Consumption	750 mA
Max. Remote Output Current	500 mA
Operating Temperature Range	-40 °C to +70 °C
Fuse	2 x 40 A LP mini plug-in fuses
Additional Features	32-bit Co-Processor, Extension Card 2.0 Slot, ADEP.3 Circuit, Auto Remote Switch, Smart Control Port, USB-C, USB PerfectStream
Dimensions (H x W x D)	44 x 220 x 180 mm

Scope of Delivery

1 x HELIX NEXT V EIGHT DSP Amplifier ULTIMATE
1 x USB-C cable with USB-A adapter
2 x Allen keys
4 x connection cables
1 x mounting hardware
1 x user manual