HELIX M FOUR DSP – 4 Channel Amplifier | 10ch DSP
Product parameters
- Channels: 4 Channel
- Built-in DSP: Yes
- RCA Input: 6x RCA
- High-Level Input: 6x High level
- Power W RMS 2ch-Bridge | 4Ω: 200
- Power W RMS/ch | 4Ω: 100
- Power W RMS/ch | 2Ω: 135
- Other Input: Optical
- Class: D
- Max Input Sensitivity (V): 20
- THD+N | %: 0.03
- Operational Voltage:
- RCA Out: 6x RCA
- Product Depth | mm: 154
- Product Width | mm: 230
- Product Height | mm: 50
Description
That rocks – the new M FOUR DSP
The M FOUR DSP is more than “just” another four-channel amplifier – rather, despite its small dimensions, you are dealing with a powerful control center that has not less than a total of ten processed DSP channels. In addition, the amplifier delivers plentiful output power with generously 100 Watts RMS per channel into both 4 Ohms and 2 Ohms load.
Finally, its awesome price-performance ratio in combination with the fantastic feature set will ensure bright eyes.
Tonally absolutely HELIX!
Compromises in terms of sound quality have no place in a HELIX product – and that’s why the M FOUR DSP is equipped with all the finesse for the perfect sound.
Maximum flexibility
Even the internal amplifier section of the M FOUR DSP is extremely variable – it can either be operated in 4-channel mode or, thanks to its bridging capability, can also be configured as a 3-channel or even 2-channel amplifier.
Virtual Channel Processing – that´s how signal routing works today
Many DSP channels need to be managed and configured properly – so there was no question that the M FOUR DSP is also equipped with Audiotec Fischer’s innovative virtual channel processing.
The plus in speed – thanks to ACO
Faster is better – the particularly powerful 32 Bit ACO platform takes over all control tasks and ensures significantly more speed, especially for data communication with the DSP PC-Tool software but also for the lightning-fast switching between up to ten sound setups.
Compact, cool and absolutely practical
Despite its vast range of functions and huge output power the M FOUR DSP presents itself in the same classic, compact HELIX design with distinctive lines like a HELIX M FOUR or M ONE. Thanks to its Class D amplifier technology, it keeps a “cool head” even at full power.
- Up to 135 Watts RMS max. output power per channel into 4 & 2 Ω
- Extremely powerful 64 Bit “fixed point” Audio DSP and state-of-the-art 32 Bit AD and DA signal converters from AKM
- ACO – Advanced 32 Bit CoProcessor platform for enhanced system and DSP features like:
- ISA (Input Signal Analyzer) and InputEQ for easy analysis and compensation of input signals
- SFX sound effects – Augmented Bass Processing, StageXpander, RealCenter & Co.
- Smart 6-channel high-level input with ADEP.3 circuit
- Six RCA / Cinch line outputs with max. 6 Volts output voltage
- Virtual Channel Processing (VCP) allows even more flexible configuration for highly complex sound systems
- Bridgeable amplifier channels for driving powerful woofer or subwoofer
- DSP-board manufactured in Germany
| Power RMS ≤ 1% THD+N | |
| – @ 4 Ohms | 4 x 100 Watts |
| – @ 2 Ohms | 4 x 100 Watts |
| – @ 1 Ohm | – |
| – bridged @ 4 Ohms | 2 x 200 Watts |
| – bridged @ 2 Ohms | – |
| Max. output power per channel* | Up to 135 Watts RMS @ 4 / 2 Ohms |
| Amplifier technology | Class D |
| Inputs | 6 x RCA / Cinch 6 x Highlevel speaker input 1 x Optical SPDIF (12 – 96 kHz) 1 x Remote In |
| Input sensitivity | RCA / Cinch 1 – 4 Volts High level 5 – 20 Volts |
| Input impedance RCA / Cinch | 22 kOhms |
| Input impedance high level | 9 – 33 Ohms or 20 kOhms |
| Outputs | 4 x Speaker output 6 x RCA / Cinch 2 x Remote Out |
| Output voltage RCA / Cinch | 6 Volts RMS |
| Frequency response | 20 Hz – 22,000 Hz |
| DSP resolution | 64 Bit |
| DSP power | 295 MHz (1.2 billion MAC operations/second) |
| Sampling rate | 48 kHz |
| DSP type | Audio signal processor |
| Signal converters | A/D: AKM 32 Bit D/A: AKM 32 Bit |
| Signal-to-noise ratio digital input | 105 dB (A-weighted) |
| Signal-to-noise ratio analog input | 102 dB (A-weighted) |
| Distortion (THD) | < 0.03 % |
| Damping factor | 100 |
| Operating voltage | 10.5 – 16 Volts (max. 5 sec.down to 6 Volts) |
| Idle current | 1500 mA |
| Max. remote output current | 500 mA |
| Fuse | 2 x 30 A Maxi-fuse (APX) |
| Additional features | ADEP.3 circuit, Auto Remote switch, 32 Bit CoProcessor, Control Input |
| Dimensions (H x W x D) | 50 x 230 x 154 mm / 2.00 x 9.06 x 6.06“ |
* In typical multi-channel applications (2- / 3-way system + rear + subwoofer)
