GM Classic Sound System Build
My car audio project in the gm-classic, focused on achieving great sound quality for daily listening.
Goals
- Excellent sound quality for various genres
- Good imaging and soundstage
- Clean, powerful bass without rattles
- Daily driver friendly (no trunk-filling setups)
System Design
Source
- Quality head unit with good DAC
- Bluetooth aptX or LDAC support
- USB for high-quality files
- Time alignment and EQ capability
Front Stage
The most important part of the system:
- Component speakers (6.5” + tweeters)
- Proper tweeter placement for imaging
- Solid door deadening
- Passive or active crossover
Subwoofer
- Modest 10” or 12” in sealed enclosure
- Focused on musical bass, not SPL
- Trunk-mounted with pass-through
Amplification
- 4-channel for front stage
- Mono amp for subwoofer
- Clean, efficient operation
- Properly fused and wired
Sound Treatment
- Door deadening (Dynamat or similar)
- Floor deadening in key areas
- Reduce rattles and resonances
Build Log
This section will be updated as the build progresses.
Planning
- Finalize component selection
- Order parts
- Plan installation sequence
Installation
- Door preparation and deadening
- Speaker installation
- Amplifier mounting
- Wiring
- Subwoofer enclosure
- Tuning
Related
- gm-classic - Main vehicle page
- bandeirante-sound-system - Another audio project
- electronics - Audio electronics
- woodworking - Enclosure building
- cars - Back to car collection