Dayton Audio KAB-FC Function Cables Package for Bluetooth Amp Boards

In this review the Dayton Audio KAB-FC function cables package is evaluated for hobbyists and builders who want to add practical control and input options to KAB Bluetooth amplifier board projects. The kit's single biggest advantage is convenience: four 20' cables terminated with Molex Mini Fit Jr connectors make integration quick and reduce soldering time. For anyone assembling a portable or desktop amp using a Dayton Audio KAB board, these function cables deliver straightforward, ready-made connections that simplify adding an AUX input, external volume, battery feed and power switch.

Key Features

• 3.5 mm AUX-in cable: Lets non-Bluetooth sources plug in directly so older phones or MP3 players can be used without pairing.
• External volume control: Adds a cable and knob that make volume adjustments easier and keep output levels under control during listening sessions.
• Battery cable: Provides a clean way to connect a battery pack for true portable builds without splicing wires.
• On/off power cable: Supports an optional standby switch so projects can have a convenient power control point.
• 20' length and Molex termination: Each cable is 20' long and fitted with Molex Mini Fit Jr connectors for quick, secure board connections.

Who It's For

The KAB-FC kit is aimed at DIY audio builders, makers and anyone assembling a Dayton Audio KAB Bluetooth amp board who prefers plug-and-play wiring instead of custom harnesses. It is particularly useful for portable speaker builds or desktop amps where an external volume pot and a battery option are desirable.

Those who should look elsewhere include builders who need longer or shorter cable lengths than the provided 20' or projects that require specialized connectors not compatible with Molex Mini Fit Jr. If you plan to design a custom wiring loom with unusual terminations, this off-the-shelf kit may be less helpful.

Pros & Cons

Pros

• Ready-made Molex-terminated cables save assembly time and reduce wiring errors for KAB board projects.
• Includes a 3.5 mm AUX-in option to support non-Bluetooth sources without extra adapters.
• External volume control and on/off power cable add useful user controls without panel-mounted wiring hassles.
• Battery cable simplifies building truly portable systems by providing a dedicated power lead.

Cons

• All cables are 20' in length, which may be too long for compact builds and could require management or shortening.
• Connector type is Molex Mini Fit Jr; users needing different terminations will still need to modify cables.

Specifications

Kit contents	Four function cables
Cable length	20' each
AUX connector	3.5 mm AUX-in jack cable
Volume control	External volume control cable with knob
Power options	Battery cable and on/off power cable for optional switch
Connector type	Molex Mini Fit Jr

Our Verdict

The Dayton Audio KAB-FC function cables package is a practical, good-value accessory for DIYers using KAB Bluetooth amplifier boards who want fast, reliable wiring for AUX input, volume control, battery power and a standby switch. It removes several small hurdles in assembly and is worth choosing if the 20' cable length and Molex termination match your project needs.

Frequently Asked Questions

Are these cables compatible with Dayton Audio KAB boards?
Yes, the KAB-FC cables use Molex Mini Fit Jr connectors and are intended for easy termination to Dayton Audio KAB amplifier boards.

Does the kit include a volume knob?
The package includes an external volume control cable with a knob for panel or enclosure mounting to control output level.

Can I use a battery with these cables?
Yes, a battery cable is included to support portable projects and connect a battery pack without splicing.