The boards work. We make them usable.
Off-the-shelf Class-D boards deliver real performance. What they don't deliver is a case, cooling, clean power, or connectors. We design the rest — so a bare board becomes a finished amp you'd actually use.
Venturi Port Insert Generator
When speakers sit near walls, corners, or shelves, boundary reinforcement boosts low frequencies and shifts the port tuning. A venturi insert restricts the port area with a smooth cosine taper — compensating for boundary gain without changing the cabinet.
- Parametric generator — dial in your port dimensions and restriction level
- Placement guide suggests restriction based on speaker position
- Download STL for 3D printing or order a printed insert
Amplifiers & Signal Processing
Hand-assembled electronics in custom 3D printed enclosures. Each unit tested and configured before shipping.
TPA3255 Stereo Amp
Class D stereo amplifier with fan cooling, 48V supply, and 3D printed enclosure. Run stereo, bridged mono, or parallel.
4-Channel AB Amp
TDA7850-based 4x50W Class AB with internal 200W PSU. Wall power to speakers in one box.
USB DSP + DAC
XMOS XU208 → ADAU1401 DSP → ES9038 DAC. 6-channel digital crossover with premium 2-channel output.
Built on experience
Emergent Audio is led by Ryan Chappell — 30 years in audio engineering, from live sound and studio work to speaker design and DSP programming. Every product reflects deep understanding of acoustics, electronics, and the practical needs of builders who care about sound quality.
Questions about a product or custom requirements? .