Audison Forza F4 IN Analog Input Extension Card — Add 4 High-Voltage Inputs (3.2–32 VRMS) to AF bit Amplifiers

The Audison Forza F4 IN is an analog input extension card for Audison AF bit amplifiers with integrated DSP. It fits the amplifier's dedicated external slot and adds four analog high-level (Speaker-In) inputs to the amplifier's native eight, for a total of twelve. Its sensitivity range of 3.2–32 VRMS is higher than the native inputs (2.2–22 VRMS), which helps with advanced OEM systems that output higher voltages.

Key Features

• Adds 4 analog high-level (SPK IN) inputs to the 8 native inputs, for a total of 12
• Input sensitivity of 3.2–32 VRMS for higher-voltage OEM signals
• Fits the dedicated external slot of AF bit amplifiers, so no internal work is needed
• Designed for advanced OEM integration, such as factory subwoofer outputs
• Works with the amplifier's electrical signal analysis and de-equalization tools
• Compact card that is sold on its own (amplifier not included)

Technical Highlights

The AF bit amplifiers' native Speaker-In inputs cover 2.2–22 VRMS; the F4 IN extends this to 3.2–32 VRMS. Retailer listings name the Forza M12.14, M8.14, M5.11, M1.7 and C8.14 bit amplifiers as having the extension card slot. The slot takes either the F4 IN (four analog inputs) or the F2O (one digital input), not both at once.

Ideal For / System Fit

• Factory systems that have more speaker-level channels than the amplifier's eight inputs
• Vehicles with high-voltage OEM outputs, such as some factory subwoofer channels
• Complex OEM integrations where every factory channel needs its own input

Only for AF bit amplifiers with an extension card slot; it cannot be used at the same time as the F2O, because the amplifier has a single slot.

Installation Note

Fit the card into the amplifier's external slot with the amplifier powered down and the battery disconnected, then wire the extra factory channels into the new inputs. Professional installation is recommended.

What's Included

1 x Audison Forza F4 IN analog input extension card (amplifier sold separately; confirm the supplied connectors with your supplier)

Precautions

• The amplifier has one slot: choose either the F4 IN or the F2O
• Disconnect power before fitting the card
• Check your vehicle's factory wiring and voltage levels before connecting
• Professional installation is recommended

Audison Forza F4 IN vs. Native Amplifier Inputs Only

Frequently Asked Questions

What is the Audison F4 IN used for?
It adds four analog high-level inputs to a compatible Forza AF bit amplifier.

How many inputs will I have in total?
Twelve high-level (Speaker-In) inputs: eight native plus four from the card.

What is its input sensitivity?
3.2–32 VRMS, compared with 2.2–22 VRMS on the native inputs.

Which amplifiers does it fit?
Audison AF bit amplifiers with integrated DSP and an extension card slot.

Can I use it together with the F2O?
No. The amplifier has a single slot, so you choose one card.

Why do I need higher input voltage?
Some factory systems, such as certain subwoofer outputs, send higher voltages than the native inputs are rated for.

Is the amplifier included?
No. The card is sold on its own.

Is it hard to install?
The card plugs into the amplifier's slot, but the vehicle wiring needs care, so a professional installer is recommended.

Product Specifications

Connect every channel of a complex factory system — order the Audison Forza F4 IN today.