Helix AMPLIFY 206 DSP – compact 5/6-channel amplifier with 8-channel DSP
The AMPLIFY 206 DSP is the DSP model of the HELIX AMPLIFY 2-Series. Its six fully bridgeable channels allow 3-, 4-, 5- or 6-channel configurations – for example front and rear speakers on channels 1–4 with a subwoofer on bridged channels 5/6 at up to 380 W RMS into 4 Ohms, or a fully active 3-way front system in 6-channel mode. A smart 6-channel highlevel input with ADEP.3 makes integration with OEM head units straightforward.
The integrated 8-channel DSP with a 64-bit fixed-point audio processor and high-quality AD/DA converters provides EQ, time alignment and filters, with flexible routing and Virtual Channel Processing. The 32-bit ACO CoProcessor handles control tasks, fast communication with the software and switching between up to ten sound setups. Tuning functions include TuneEQ, AISA with Input EQ, RealCenter, Augmented Bass Processing, DLC and RTC, all configured with DSP PC-Tool 6 and its integrated RTA.
Key Features
- Six Class D channels: 6 x 100 W RMS at 4 Ohm, 6 x 190 W at 2 Ohm; up to 240 W RMS per channel at 2 Ohm (one channel driven).
- Fully bridgeable: 3 x 380 W RMS bridged at 4 Ohm; 3- to 6-channel layouts.
- 8-channel DSP: 64-bit fixed-point audio DSP with EQ, time alignment and filters.
- Smart 6-channel highlevel input: with ADEP.3 for OEM integration.
- ACO 32-bit CoProcessor: control tasks, fast PC communication, up to 10 sound setups.
- Virtual Channel Processing (VCP): for complex system configurations and flexible channel routing.
- TuneEQ: automated frequency response correction with a measurement microphone such as the AMI Tuning Kit.
- AISA and Input EQ: analysis and correction of factory input signals.
- DLC and RTC: Dynamic Loudness Control and Remote Tone Control for volume-dependent highs and lows.
- SFX: RealCenter and Augmented Bass Processing.
- Optical S/PDIF input and 8 V line outputs: digital input (12–96 kHz) and two processed line outputs.
- Auto Remote, SCP and start-stop: turn-on without remote signal, Smart Control Port for accessories, operation down to 6 V.
Inputs & Outputs
- 6 x RCA inputs (sensitivity 1–8 V, impedance 4.8 kOhm) or 6 x highlevel speaker inputs (sensitivity 2–16 V, impedance 9–33 Ohm or 20 kOhm with ADEP.3)
- 1 x optical S/PDIF input (12–96 kHz)
- 2 x remote inputs
- 6 x speaker outputs
- 2 x RCA line outputs (processed), output voltage 8 V
- 1 x remote output, max. remote output current 500 mA
- Smart Control Port (SCP) for remote controls and accessories
Power & Amplifier Section
- 6 x 100 W RMS at 4 Ohm, 6 x 190 W RMS at 2 Ohm, 3 x 380 W RMS bridged at 4 Ohm (≤1% THD+N at 14.4 V)
- Max. output (one channel driven, ≤10% THD+N at 14.4 V): up to 240 W RMS at 2 Ohm, up to 480 W RMS bridged at 4 Ohm
- Class D amplifier technology
- SNR 99 dB (analog) and 102 dB (digital) at full power, A-weighted; THD below 0.005%, THD+N below 0.02% (1 kHz, 1 W into 4 Ohm); damping factor 70
- Fusing 3 x 25 A LP-Mini (APS); max. 93 A at 12 V DC; idle current 1,100 mA
DSP & Sound Tuning
- 1 x 64-bit fixed-point audio DSP, 295 MHz (1.2 billion MAC/s), 48 kHz sampling rate, 8 DSP channels
- Converters: Burr-Brown 24-bit A/D, AKM 24-bit D/A
- Equalizer, time alignment and filters with flexible filter options; Automatic Time Measurement (ATM)
- TuneEQ: one measurement per channel or channel pair; parametric EQ adjusted in center frequency, Q and gain
- RealCenter: center signal scaled by the stereo content of the front channels; absent when only one side carries audio
- Augmented Bass Processing: Dynamic Bass Enhancement (input-dependent subsonic cutoff) and SubXpander (subharmonics between 50 and 100 Hz)
- Configuration via DSP PC-Tool 6 with signal-path-oriented interface and integrated RTA
Installation & Connectivity Notes
- Operating voltage 10.5–16 V (max. 5 s down to 6 V), start-stop capable
- Auto Remote switch activates the amplifier without an external remote signal
- Remote control ready via Smart Control Port
- Very compact housing with removable top cover and matte finish
- Operating temperature range −40 °C to +70 °C
Technical Specifications
| Power RMS ≤ 1% THD+N | @ 14.4 V |
| – @ 4 Ohms | 6 x 100 Watts |
| – @ 2 Ohms | 6 x 190 Watts |
| – @ 1 Ohm | – |
| – bridged @ 4 Ohms | 3 x 380 Watts |
| – bridged @ 2 Ohms | – |
| Max. output power per channel* | Up to 240 Watts RMS @ 2 Ohms Up to 480 Watts RMS @ 4 Ohms bridged |
| Amplifier technology | Class D |
| Inputs | 6 x RCA / Cinch or 6 x Highlevel speaker input 1 x Optical SPDIF (12 – 96 kHz) 2 x Remote In |
| Input sensitivity | RCA / Cinch:1 – 8 Volts Highlevel: 2 – 16 Volts |
| Input impedance | RCA / Cinch 4,8 kOhms Highlevel 9 – 33 Ohms or 20 kOhms with ADEP.3 |
| Outputs | 6 x Speaker output 2 x RCA / Cinch 1 x Remote Out |
| Output voltage RCA / Cinch | 8 Volts |
| Frequency response | 20 Hz – 22,000 Hz |
| DSP resolution | 64 Bit |
| DSP power | 1 x 295 MHz (1.2 billion MAC operations/second) |
| Sampling rate | 48 kHz |
| DSP type | 1 x Audio signal processor |
| Signal converters | A/D: BurrBrown 24 Bit D/A: AKM 24 Bit |
| Signal-to-noise ratio (A-weighted) | Analog input: 99 dB @ full power Digital input: 102 dB @ full power |
| Distortion (THD @ 1 kHz, 1 W into 4 Ohms) | < 0.005 % |
| Distortion (THD+N @ 1 kHz, 1 W into 4 Ohms) | < 0.02 % |
| Distortion (THD @ 100 Hz, 1 W into 4 Ohms) | – |
| Distortion (THD+N @ 100 Hz, 1 W into 4 Ohms) | – |
| Damping factor | 70 |
| Operating voltage | 10.5 – 16 Volts (max. 5 sec. down to 6 Volts) |
| Power rating | DC 12 V ⎓ 93 A max. |
| Idle current | 1,100 mA |
| Max. remote output current | 500 mA |
| Operating temperature range | -40 °C to +70 °C |
| Fuse | 3 x 25 A LP-Mini-fuse (APS) |
| Additional features | ADEP.3 circuit, Smart Control Port, Auto Remote switch, 32 Bit CoProcessor |
| Dimensions (H x W x D) |
41.5 x 263 x 118 mm / |
* One channel driven (≤ 10 % THD+N @ 14.4 V)
Scope of Delivery
1 x Amplifier HELIX AMPLIFY 206 DSP
2 x Allen key
1 x Mounting material
5 x Connection cable
1 x USB cable
3 x Fuse
1 x Instruction manual
