Hogtunes G4-SG-RM – QC 225-RM Amp & G4 Front Speaker Kit for Street Glide (2014–2023)
The Hogtunes G4-SG-RM is a complete front-stage audio upgrade built specifically for 2014–2023 Harley-Davidson® Street Glide models. This kit pairs the QC 225-RM 4-channel Class D amplifier with a set of G4 462SG-RM 6.5" front speakers engineered for the Rushmore Batwing fairing.
With a Street Glide–specific amplifier mounting plate and a true plug-and-play harness, installation is clean and requires no modifications. The G4 speakers offer improved midbass, smoother highs and greater overall clarity compared to factory Harley speakers.
Who This Is For
- Owners of a 2014–2023 Street Glide, Street Glide Special or CVO Street Glide upgrading the front stage.
- Riders who want the amplifier and speakers matched as one kit rather than sourcing the parts separately.
- Anyone wanting an install with no cutting or drilling – the harness, amp plate and hardware are bike-specific.
- Builds meant to grow later: the remaining amplifier channels can run rear or lower speakers.
- CVO models with Boom Stage II/III amplifiers are excluded unless those amps are bypassed.
Key Features
- QC 225-RM 4-channel Class D amplifier provides strong, efficient output for front speakers and future expansion.
- G4 462SG-RM 6.5" speakers tuned for Batwing acoustic performance.
- Direct fit for Street Glide fairings – no cutting or drilling required.
- Plug-and-play Street Glide harness with OEM-style connectors.
- Road-proven motorcycle acoustic tuning for clarity at freeway speeds.
- R.E.M.I.T. circuitry in the QC-series amp improves FM reception compared to standard Class D designs.
Why Riders Choose This Kit
- Big improvement over stock Harley speakers in both clarity and midbass.
- Complete amp + speaker package for a proper front-stage upgrade.
- Simple installation thanks to the bike-specific harness and amp plate.
- Expandable – remaining amp channels can power rears or lowers later.
What’s Included
- 1 × QC 225-RM 4-Channel Class D Amplifier
- 1 Pair G4 462SG-RM 6.5" Front Fairing Speakers
- Street Glide plug-and-play wiring harness
- Street Glide amplifier mounting plate
- All required mounting hardware
- Installation Manual
Fitment
- 2014–2023 Street Glide – FLHX
- 2014–2023 Street Glide Special – FLHXS
- 2014–2023 CVO Street Glide (excludes models with Boom Stage II/III amps unless bypassed)
Technical Notes
- Class D amplifiers may reduce FM reception – normal for all brands.
- QC-series amps include R.E.M.I.T. for improved FM performance.
- For best FM reception, retain the factory external antenna.
Specifications
| Amplifier | QC 225-RM – 4-Channel Class D |
| Front Speakers | G4 462SG-RM – 6.5" |
| Wiring | Street Glide plug-and-play harness |
| Mounting | Street Glide amplifier plate included |
Recommended Use
- Ideal for riders wanting a strong, clean front upgrade for Street Glide.
- Perfect base for future rear or lower speaker expansion.
- Works with the factory head unit or aftermarket head units.
Related collections
This part is listed in: All 2014–2023 Touring Audio · Complete Audio Systems · Wild Boar / Hogtunes – Complete Kits · Fairing Speakers
Australia Shipping:
- Under $500 → $19.95
- $500–$2,500 → $14.95
- $2,500 and above → FREE
- Bulky items → +$25 surcharge (waived once your order reaches $2,500)
Fast dispatch from Brisbane. In-stock orders placed before 1pm AEST usually ship the same business day.
Change of mind: Request a return within 30 days of delivery. The product must be unused, unopened and in its original sealed packaging, valued at $50 or more, and you'll need an RMA number from us before sending anything. Return freight is yours, and a restocking fee of up to 15% may apply – we'll confirm any fee before the return is accepted.
Not returnable for change of mind: opened, installed or test-fitted items, special-order and custom products, custom harnesses, completed tuning, gift cards and items under $50.
Fitment: If we confirmed fitment in writing based on accurate bike details and it doesn't fit, we'll put it right and cover reasonable freight. Not sure? Ask us before you order – we're happy to help.
Faulty, damaged or wrong item: Contact us first with your order number. Faults follow our RMA and warranty process, and none of this affects your rights under the Australian Consumer Law.