AF M1.7 bit DSP Amplifier | 1200 W | 7 CH DSP + 1 x 1200 W @ 1 ohm | D-class
The Audison Forza AF M1.7 bit combines a powerful Class-D amplifier with cutting-edge DSP technology. This amplifier delivers 600W RMS at 4Ω, 1000W at 2Ω, and 1200W at 1Ω—matching the proven Forza AF M1D—but adds a powerful 24-bit, 96kHz DSP. The bit Drive software for the AF M1.7 bit includes specific algorithms for optimizing in-car subwoofer performance. The DSP provides equalization, crossover, time delay management, level adjustments, and dynamic loudness. The AF M1.7 bit also features the exclusive “Bass-Magnifier” function, which maximizes low-frequency output in the cabin for an immersive listening experience and realistic dynamic response. It supports 8 input channels and up to 12 using the optional F4IN card with flexible routing and mixing capabilities via the bit Drive software. It includes the Universal Speaker Simulator (USS) circuit for perfect integration with OEM audio systems. The AF M1.7 bit is compatible with the high-resolution Bluetooth receiver B-CON and its B-CON go app for remote control from a smartphone. Compatibility extends to the new DRC MP CAN and DRC AC remote controllers. The AF M1.7 bit is ideal for car audio enthusiasts seeking exceptional sound quality and advanced control features.
Amplifier Tech Data
| Channels | 1 |
| Class | D-Class |
| Power supply voltage / fuse | 11 ÷ 15 VDC / 2 x 35A |
| Operating power supply voltage | 6.5 ÷ 17.5 VDC |
| Idling current | 1.15 A |
| Consumption @ 14.4 VDC, 2Ω, Max Musical Power | 65 A |
| Remote IN | 4 ÷ 15 VDC (1 mA) |
| Remote OUT | 6.5 ÷ 15 VDC (150 mA) |
| ART - Automatic Remote Turn on/ off from OUTPUT BTL speakers | 1.5 VDC |
| Efficiency Rated Power | 84% |
Amplifier Stage
| Distortion - THD @ 1 kHz, 4Ω, 70% Rated Power | 0,03 % |
| Bandwidth @ -1.5 dB | 10Hz ÷ 600 Hz |
| Damping factor @ 1 kHz, 4Ω, 2 VRMS | 140 |
| S/N ratio (A weighted @ 1 V Input) Master Input | 105 dBA |
| S/N ratio (A weighted @ 1 V Input) Optical Input | 105 |
| Total Power RMS | 1200 W |
| Minimum load impedance | 1Ω |
| Output Continuous Power (RMS) @14.4 VDC, 1% THD |
1Ch @ 4Ω: 600 W x 1 1Ch @ 2Ω: 1000 W x 1 1Ch @ 1Ω: 1200 W x 1 |
| Adjustable Crossover | Yes |
CEA Specifications
| Output power @ 4Ω, 1% THD+N, 14.4 V | 600 W |
| SN ratio (ref. 1W output) | 81 dB |
Inputs / Outputs
| Pre-In Sensitivity | 0.6 ÷ 6 VRMS (15 KΩ Imp.) |
| Digital Input | Yes |
| Pre Outputs | 6 |
| Hi Level Inputs | 8 |
| Low Level Inputs | 8 |
| Speaker-In Inputs | 2.2 ÷ 22 VRMS (5 Ω Imp.) |
| Digital IN | 1 x Optical S/PDIF; Max 192 kHz / 24 bit + 1 x Optical/Coaxial S/PDIF with optional F2O card |
Digital Signal Processor
| Filter type | Full / High-Pass / Low-Pass / Band-Pass |
| Filter mode and slope |
Linkwitz-Riley @ 12/24/36/48 dB/Oct. Butterworth @ 6/12/18/24/30/36/42/48 dB/Oct. Bessel @ 6/12/18/24/30/36/42/48 dB/Oct. Chebyshev @ 6/12/18/24/30/36/42/48 dB/Oct. QLP @ 6 dB/Oct. |
| Crossover frequency | 20 Hz ÷ 20 kHz |
| Analog Input Equalizer (20 ÷ 20k Hz) | 12 Biquad + Delay |
| Time Alignment Distance | 0 ÷ 510 cm / 0 ÷ 200.8 inches |
| Time Alignment Delay | 0 ÷ 15 ms |
| Input/Output electrical RTA | RTA |
Control Connections
| DRC Port | Input for DRC AC remote control (Optional) |
| ADC Port | Manage other Audison devices that support this standard |
| 1 Wire | Customizable functions (+ 12 V activated) |
| 2 Wire | Customizable functions (+ 12 V activated) |
General Requirements
| PC connections | Micro USB 1.1 / 2.0 / 3.0 Compatible |
| Software/PC requirements | Windows 10, Windows 11 (min. res. 1024 x 768) |
| Ambient operating temperature range | 0 °C to 55 °C (32 °F to 131 °F) |
| Size | 240 x 47 x 156 / 9.44 x 1.85 x 6.14 |
| Weight | 1.95 kg |
Dimensions
| Dimension A | 240 mm (9.45 in) |
| Dimension B | 156 mm (6.14 in) |
| Dimension C | 47 mm (1.85 in) |
Box Content
CONTROL CABLE AF bit
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Provided control interconnection to control memory selection and remote power-on.
SPK OUT 2CH
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Provided cable for AF M5.11 bit and AF M1D with two pairs of labeled cables to connect a single voice coil or dual voice coil subwoofer, or two subwoofers.
PRE IN CABLE 8 CH
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Eight stereo RCAs interconnection to connect Forza bit amplifier with after-market sources with PRE-OUT outputs provided with Forza amplifiers.
SPEAKER IN CABLE 8 CH
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Provided cable with 8 pairs of labeled wires to connect Forza bit amplifiers bit with the high-level output of OEM sources.
Accessories
DRC MP CAN
Audison DRC MP CAN is the new high-end remote controller designed for Forza bit DSP amplifiers and future Audison devices with a DRCC port.
The white OLED display ensures excellent visibility under all cabin lighting conditions, with a 160-degree viewing angle. The RGB LED backlit keyboard seamlessly integrates with the car’s dashboard. When audio streaming from the B-CON is active, the main fast forward (FFW) and rewind (RRW) controls will be available on the DRC MP CAN display. The joystick allows for easy navigation of the menu, providing quick access to main functions such as master volume, subwoofer volume, mute, and more.
This controller offers perfect integration with the B-CON and B-CON go app, allowing full control of audio streaming when the B-CON is present. The master volume can be managed both from the DRC MP CAN and the mobile device, with real-time synchronization with the app. The device allows for the selection of up to six DSP memories, offering maximum flexibility for any audio needs.
Additionally, the Audison DRC MP CAN enables the activation and deactivation of the Final EQ and manages the different zones configured in the bit Drive software. The provided cable features the same terminations as the DRC AC, ensuring a quick and straightforward connection.
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The white OLED display ensures excellent visibility under all cabin lighting conditions, with a 160-degree viewing angle. The RGB LED backlit keyboard seamlessly integrates with the car’s dashboard. When audio streaming from the B-CON is active, the main fast forward (FFW) and rewind (RRW) controls will be available on the DRC MP CAN display. The joystick allows for easy navigation of the menu, providing quick access to main functions such as master volume, subwoofer volume, mute, and more.
This controller offers perfect integration with the B-CON and B-CON go app, allowing full control of audio streaming when the B-CON is present. The master volume can be managed both from the DRC MP CAN and the mobile device, with real-time synchronization with the app. The device allows for the selection of up to six DSP memories, offering maximum flexibility for any audio needs.
Additionally, the Audison DRC MP CAN enables the activation and deactivation of the Final EQ and manages the different zones configured in the bit Drive software. The provided cable features the same terminations as the DRC AC, ensuring a quick and straightforward connection.
DRC AC
Adjust master volume, tweak subwoofer level, switch sources, and recall DSP presets in seconds.
Designed for a seamless OEM-style fit, it blends perfectly into any interior while RGB LED indicators keep everything clear, day or night.
With a single cable for power and control, installation is fast and clean.
Fully compatible with a wide range of Audison processors, the DRC AC is your perfect interface for precision sound with a touch of style.
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C2O
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The Audison C2O is a high–precision interface designed to convert both coaxial digital and analog AUX signals into a TOSLINK optical digital output. Supporting resolutions up to 24-bit / 192 kHz, the C2O ensures perfect integration between modern Hi-Res portable players, smartphones, and Audison processors equipped with an optical digital input. Thanks to its ultra-compact design, the C2O can be easily installed in hidden or tight spaces inside the vehicle, minimizing cable length and eliminating noise issues often caused by long signal paths. The C2O is the ideal solution for integrating Hi-Res audio sources into advanced Audison ecosystems, guaranteeing signal integrity, perfect compatibility, and a streamlined installation experience. Its intelligent design and premium components make it indispensable for achieving the highest sound quality in modern car audio systems.
F2O
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The F2O accessory is a digital input extension board, compatible with the new line of Audison AF bit amplifiers with integrated Dsp.
The card fits the dedicated external slot of the AF bit amplifier and it adds either an additional Coaxial S/PDIF or a second Toslink S/PDIF input. The type of additional input can be selected by the switch mounted over the card itself.
In case the Coaxial S/PDIF input is selected, it is possible to use the Coaxial input cable included in the board box.
F4IN
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The F4IN accessory is an analog input extension board, compatible with the new line of Audison AF bit amplifiers with integrated Dsp.
The card fits the dedicated external slot of the AF bit amplifier and adds four analog high-voltage input channels to the AF bit native eight, thus reaching a total of twelve high-level (SPK IN) inputs.
With respect to the sensitivity range of the AF bit native eight SPK IN inputs (2.2 ÷ 22 VRMS), the F4IN features 3.2 ÷ 32 VRMS to allow a perfect integration in advanced OEM systems with higher voltages.
AFM - CLK
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The Audison AFM CLK accessory is specifically engineered for the Audison Forza Max amplifier line. This accessory kit comprises a metal bracket equipped with air flow slots and a cooling fan, which can be securely mounted onto the Audison Forza Max amplifiers.
Key Features:
• Durable Metal Bracket: The sturdy metal bracket ensures reliable support and optimal airflow through strategically placed slots.
• Efficient Cooling Fan: The cooling fan is equipped with a temperature sensor, allowing it to activate only when the amplifier requires additional cooling. This ensures efficient operation and prolongs the lifespan of the amplifier by preventing overheating.
• Temperature Sensor: The intelligent temperature sensor continuously monitors the amplifier’s temperature, activating the cooling fan only when necessary, providing efficient and effective cooling precisely when needed.
The Audison AFM CLK accessory is highly recommended when the amplifier is installed in very tight spaces with limited air circulation, ensuring optimal performance and longevity under challenging conditions.
Features
- State-of-the-Art DSP Technology: features subwoofer-specific DSP processing, including EQ, crossovers, delay, Dynamic Bass EQ, and Audison’s proprietary Bass Magnification Processing for enhanced in-car subwoofer performance.
- High Power Output: delivers 600W RMS @ 4Ω, 1000W @ 2Ω, and 1200W @ 1Ω, based on the proven AF M1D subwoofer amplifier design.
- Versatile Input Options: 8 input channels and up to 12 with optional AF4IN expansion card, allowing for integration with all OEM systems.
- Advanced DSP management of input channels: includes eRTA for accurate alignment of channels amplitude, phase, and time, ensuring linearity before tuning.
- Advanced DSP management of output channels: bit Drive software provides flexible control over routing and mixing, managing the bit processor’s 6 preamp outputs.
- ACCORDO automated system tuning: acoustically tunes a car-audio system to a selected target-curve, with time and phase alignment, in just a few steps.
- Universal Speaker Simulator (USS): ensures compatibility with OEM systems by providing a load that satisfies speaker-test expectations.
- Optional F2O card: 2nd Toslink in and coaxial SPDIF in.
- Full integration with B-CON hi-res receiver: AF M1.7 bit supports Absolute Volume control of B-CON Go and it’s compatible with B-CON Go app control.
- Flexible System Integration: AF M1.7 bit is the ideal solution for Add-a-Sub installations, full DSP-managed systems, and pairing with Forza companion amplifiers.
- Enhanced Control Options: AF M1.7 bit is fully compatible with the new DRC MP CAN and DRC AC for advanced user control and customization.
Technologies
Next-generation bit Drive software platform – developed for this family of products – simplifies every control and function.
Native DSP working at 24 bit/96 kHz and an extended audio band up to 40 kHz.
The acoustic analysis integrates the response graph into the equalizer display ensuring efficient tuning and great sound, compatible with any 24-bit USB microphone.
The electrical analysis integrates the response graph into the input equalizer display, ensuring efficient tuning.
Electrical Signal Analysis ensures proper integration and correction for each input channel.
Enjoy the improved audio performance of the latest generation Audison D-Class technology.
Forza amplifiers have two independent power supplies: the audio amplifier power supply is loosely regulated, which allows superior dynamic performance. The DSP power supply is stiffly regulated, which maintains DSP microprocessor operation even during lower-voltage transient states (i.e., start/stop operation).
Quick I/O Configuration speeds up system definition and signal routing.
When connected with Audison B-CON hi-res Bluetooth receiver, this feature manages the Master Volume of the Forza amp thus ensuring full dynamic range signal at the input.
iDatalink Maestro AR native support for a total integration with OEM infotainment.
Equipped with eight analog inputs, to support total connectivity even with the most complex OEM systems.
Automatically sums and reverses OEM equalization.
Input delay compensation of time-delayed factory outputs prior to signal summing.
Allows left and right inputs to match in phase before tuning, even if OEM phase processing has been used.
Universal Speaker Simulator technology on high-level inputs for maximum compatibility with any type of Head-Unit OEM Source.
Pure Innovation
AF M1.7 bit
“The AF M1.7 bit is quite possibly the most technically advanced subwoofer amplifier in the world”
Luca Girotti – Technical Director
Several types of installations
Add-a-Sub to an OEM system
The subwoofer can be EQ’d and time and phase-aligned
Paired with non-DSP amplifiers
The M1.7 bit is also the system controller for non-DSP amplifiers, such as our Forza M6D or the new SR 6.600
AF 1.7 bit proprietary algorithm
BASS MAGNIFICATION
A bass enhancement algorithm designed to compensate for the poor low-end response of small speakers by using psychoacoustic principles to improve the perceived bass response
AF 1.7 bit proprietary algorithm
FIXED & DYNAMIC BASS BOOST
We originally introduced Dynamic Bass EQ in our bit One HD Virtuoso processor, and now we have an improved version of it in the 1.7 bit. Now we can achieve the same reference bass experience, regardless of the OEM signal variations
Extension Cards - F2O
+1 SPDIF Optical or Coaxial input
The F2O accessory is a digital input extension board, compatible with the new line of Audison AF bit amplifi ers with integrated Dsp.
The card fi ts the dedicated external slot of the AF bit amplifi er and it adds either an additional Coaxial S/PDIF or a second Toslink S/PDIF input.
Extension Cards - F4IN
+4 analog inputs up to 32 VRMS
The F4IN accessory is an analog input extension board, compatible with the new line of Audison AF bit amplifi ers with integrated Dsp.
The card fi ts the dedicated external slot of the AF bit amplifi er and adds four analog high-voltage input channels to the AF bit native eight, thus reaching a total of twelve high-level (SPK IN) inputs.
With respect to the sensitivity range of the AF bit native eight SPK IN inputs (2.2 ÷ 22 VRMS), the F4IN features 3.2 ÷ 32 VRMS to allow a perfect integration in advanced OEM systems with higher voltages.
Unique features
- 1200 W RMS into 1Ω
- Bass Magnifi cation Processing
- Up to 12 high-level input channels
- 8 native input channels
- 4 additional high-voltage input channels with 32V sensitivity
- Extreme fl exibility for the Input/Outpu routing with the integrated Mixer
- Advanced DSP processor
- Final Tuning EQ can manage all 7 output channels simultaneously
- e-RTA is “the most advanced input signal analysis on the market”
- Dynamic Bass Boost
- Bass Magnifi cation Processing
- DRC port for DRC AC and/or DRC MP CAN
- ADC port for B-CON High Resolution Certifi ed Bluetooth receiver (Full DA HD)
- B-CON GO Smartphone App-controlled
- Native High Resolution optical Toslink input
- Optical F2O card with 2nd Toslink in and coaxial SPDIF in
- Start/stop compatibility and EV-compatibility
- ART turn on
- Compact design with excellent heat dissipation
Optional remote controllers
DRC MP CAN DRC
DRC AC
1Ω STABLE
Single 1Ω subwoofer
High-current capability delivers high power into the most diffi cult loads being 1Ω stable
Double 2Ω subwoofer
You drive two 2Ω subwoofer maximing performance
You drive two 2Ω subwoofer maximing performance
TECHNICAL SPECIFICATIONS
| AF M1.7 bit Amplifier Tech Data | |
|---|---|
| DSP processed channels | 7 |
| Output Power (RMS) @14.4 VDC | 600 W @4Ω 1000 W @2Ω 1200 W @1Ω |
| Input channels | 8 (+ 4 with optional F4IN card) |
| THD 100 Hz @ 4 Ω | 0.03 % |
| S/N Ratio | 105 dBA |
| Accessories | DRC AC DRC MP CAN B-CON B-CON go mobile app |
| Size | 240 x 47 x 156 mm 9.44 x 1.85 x 6.14 in. |
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