Wavtech Line Output Converters UK

Buying Wavtech line output converters in 2026

If you want to keep the factory radio and add an aftermarket amplifier or subwoofer in 2026, you need a clean way to take the speaker-level signal and drop it to RCA line level. That is exactly the job Wavtech line output converters were built for, and the two models stocked here at Bass Junkies cover almost every modern UK car-audio install on the road today.

Why use a high-level converter

Modern factory radios output signals optimised for the OEM amplifier and speakers, often with loudness curves baked in at low volume. A Wavtech converter accepts that high-level feed, sums multi-channel outputs back into a flat signal and gives your aftermarket amplifier a clean reference. The result is a system that sounds tighter, louder and more controlled at every volume.

Wavtech Link6 6-channel summing LOC

The Link6 is the converter to choose when the factory system uses three or more amplified outputs, like a Bose, Harman or B&O setup. It takes six high-level inputs, sums them back into a true full-range RCA signal and gives you independent level control on channels five and six for a dedicated subwoofer feed.

• 6-in, 6-out architecture. Handles factory front, rear and sub channels in one box.
• Signal summing. Recombines multi-channel feeds into a flat reference signal.
• Wired remote. Sub-level control on the dash for quick gain adjustment.
• Aux input. Adds a secondary source feed without re-wiring the head unit.

Wavtech LinkDQ with parametric EQ

The LinkDQ is the model for cars where the factory radio applies a heavy bass boost or top-end roll-off at low volume. The built-in parametric EQ flattens the signal before it reaches your aftermarket amp, so the system stays clean and balanced as you turn up. It is the favourite in workshop installs that keep the factory radio as the master source.

Brand quality at a glance

• Wavtech. UK-designed integration brand, trusted by competition installers for over a decade.
• Audison. Premium Italian alternative, often paired with Wavtech in high-end builds.
• JL Audio FiX series. US alternative with DSP de-equalisation built in.
• AudioControl LC and Match UP. Other workshop-grade options stocked elsewhere on the site.

Compatibility and fitting

A Wavtech converter is rarely the only part you need. We usually quote the lead, RCAs and an amp install kit at the same time so the job runs in one visit and the customer goes home with a finished system.

• High-level input lead. Tap the speaker wires behind the head unit or the factory amplifier.
• RCA cables. Twisted-pair shielded cables from the LOC to your aftermarket amp.
• Remote turn-on. Provided by the Wavtech output, no need for separate trigger sensing.
• Amp install kit. Power cable, fuse holder, ground lead and grommet bundle.

Typical use cases

Most owners buy a Wavtech to add a small underseat sub to a factory radio, to feed a four-channel amplifier driving aftermarket components on the original head unit, or to clean up a Bose, Harman, Meridian or B&O system without ripping out the dash. Each scenario keeps the standard radio as the source, which is essential on cars where the dashboard is integrated with the climate display.

DIY vs workshop fit

A LinkDQ on a basic factory radio is a confident DIY install. A Link6 on a six-channel Bose or Harman system usually wants a workshop fit, since the high-level taps must be picked up from the right factory amp outputs and the parametric EQ benefits from RTA tuning on a calibrated rig.

Why buy from Bass Junkies

Bass Junkies has been supplying UK car audio since 1995, with our Wolverhampton workshop running daily installs on Wavtech-equipped systems. Speak to our team on 01902 863 005 for application advice, matched RCA lengths and a properly speced install kit before you order.