RetroSound Accessories

RetroSound Accessories covers the full range of add-ons and upgrades designed to complete a RetroSound classic car audio installation. From replacement knob sets and faceplates to amplifiers, subwoofers and voltage converters, the range suits classic car and truck owners who want a period-correct look with modern audio performance.

Whether you need a dash-mount USB harness, a replacement wiring loom, or a DIN repair kit to fit a RetroSound radio into a standard single DIN opening, the accessories range has you covered, with prices from £29.99.
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RetroSound Accessories at a glance

  • Knob sets (39-78, 68-78, 04-78, 36-76, 06-76) — four-piece replacement knob sets for RetroSound RetroRadios in black, ivory or all-chrome combinations, £29.99
  • Radio faces (B1, C1, IVO1) — replacement faces for all current RetroSound Radio Motors in black/black, chrome/chrome or chrome/ivory button finishes, £119.99
  • Faceplates (308-409, 308-509-39-78, 308-409-39-78, 502-292, 502-36-76) — chrome or black-and-chrome faceplates; some include knob sets and mounting brackets, from £34.99
  • USB harnesses (USB2KIT, USB2KIT-C) — panel-mount USB-A and USB-C extension harnesses with 1.3m cables in black or chrome, £29.99
  • Replacement wiring harness — main, power and speaker looms for any RetroSound radio, £29.99
  • DIN repair kit (294) — mounts Motor 1DAB, 2B or 6 into a standard 178mm x 50mm single DIN opening, £59.99
  • Quadraphonic amplifier — 4-channel Class D, 45W RMS x 4 at 4 ohms, £199.99
  • Technophonic amplifier — 5-channel Class D, 65W RMS x 4 plus 225W RMS x 1 at 4 ohms, £219.99
  • SUB8100 under-seat subwoofer — 8-inch, 100W RMS built-in Class D amplifier, 70mm low-profile cast aluminium enclosure, includes wiring kit and bass remote, £199.99
  • 6-12 Volt Converter — DC-DC step-up for 6V negative-earth cars, 12V DC output at up to 10A, £199.99

Which RetroSound Accessories should I choose?

For styling, the three radio faces (B1, C1, IVO1) all fit current RetroSound Radio Motors but differ in colour. Knob sets come in five references with front knobs in black, ivory or chrome. Faceplates split into the 308-series (chrome with pebbled or pinstripe inserts for classic Porsche) and the 502-series (black and chrome for standard DIN openings); some variants bundle knob sets and brackets.

For power, the Quadraphonic handles four speakers at 45W RMS each; the Technophonic adds a 225W RMS subwoofer channel for a complete system. The SUB8100 can run from either amplifier or standalone via its own 100W RMS built-in amp. For 6V negative-earth vehicles, the 6-12 Volt Converter delivers steady 12V DC at up to 10A with no rewiring required.

RetroSound Accessories FAQs

Q: What is the difference between the Quadraphonic and Technophonic amplifiers?

A: The Quadraphonic delivers 45W RMS x 4 at 4 ohms across four channels; the Technophonic delivers 65W RMS x 4 plus a dedicated 225W RMS subwoofer channel at 4 ohms. Choose the Technophonic if you want to power both speakers and a subwoofer from one unit.

Q: Which radio face finish is available for RetroSound Radio Motors?

A: Three faces are available: the B1 (black face, black buttons), the C1 (chrome face, chrome buttons) and the IVO1 (chrome face, ivory buttons). All three are compatible with all current RetroSound Radio Motors.

Q: What is included with the SUB8100 subwoofer?

A: The SUB8100 includes a wiring kit and a bass remote alongside the subwoofer itself — an 8-inch unit with a built-in 100W RMS Class D amplifier in a 70mm low-profile cast aluminium enclosure.

Q: Can CEN fit RetroSound amplifiers and subwoofers at their Nottingham workshop?

A: Yes — CEN has its own fitting workshop in Beeston, Nottingham, where RetroSound amplifiers, subwoofers and accessories can be professionally installed into classic cars and trucks.

Q: Does the 6-12 Volt Converter require me to rewire my classic car?

A: No — it accepts a 5.5 to 7.5V DC negative-earth input and outputs a steady 12V DC at up to 10A, so you can run a 12V radio without altering the vehicle's original electrical system.