DS18 DSP4.8BTM 4-Channel In and 8-Channel Out Digital Sound Processor with Bluetooth and LCD Screen

DS18 DSP4.8BTM is a 4-channel in and 8-channel out digital sound processor with Bluetooth control, built for enthusiasts who demand precise, surgical tuning and flexible routing in a car audio system. It pairs extensive onboard DSP with a mobile app workflow to tailor your soundstage with high fidelity and repeatable presets.

• 4-Channel In / 8-Channel Out: Processes four input signals and delivers eight processed outputs, enabling complex multi-amp or surround-style deployments with individually tuned channels.
• Bluetooth Interface + App: Directly access filtration settings via Bluetooth and tune using the DS18 DSP4.8BTM App (available on the App Store and Google Play) to monitor, adjust, and save presets for specific songs or genres.
• 8 Independent Parametric EQ Bands per Channel: Each channel offers eight parametric bands for targeted tonal shaping, with flexible gain and Q control to sculpt precise frequency regions.
• 8-Band Channel Equalizer: Overall 8 parametric bands per channel with gain from -12 to +12 dB and Q factor from 0.6 to 9.9, enabling surgical adjustments across the spectrum.
• Dynamic Crossover Filters: Tailor the speaker crossover with Butterworth, Linkwitz-Riley, and Bessel filter types for accurate slope and phase behavior.
• Attenuation and Crossover Slopes: Choose 6/12/18/24/36/48 dB per octave slopes to match speaker characteristics and system goals.
• Routing Options: Flexible routing with A / B / C / D and combinations (A+B, A+C, B+C) to fit diverse signal paths and amplifier layouts.
• Time Alignment / Delay: Time-align your speakers with 0–18.95 ms of delay and 0–6500 mm distance, improving imaging and stage cohesion in real vehicles.
• Phase and Levels: Phase inversion options (0° or 180°) and precise input/output level control with clean impedance handling for stable integration.
• Input/Output Specs: Input channels 4 (RCA, electronically symmetrical); max input level 4.00 Vrms (+14 dBu); input impedance 100 kΩ. Output channels 8 (RCA, electronically symmetrical); max output level 3.50 Vrms (+13 dBu); output impedance 100 Ω.
• DSP Performance: Frequency response 10 Hz–24 kHz (-1 dB); THD+N < 0.01%; signal latency < 0.6 ms; bit rate 32-bit; sampling frequency 96 kHz.
• Power and Form Factor: DC power supply 10–15 V; max current 300 mA. Device dimensions 5.6" × 4.25" × 1.6"; weight 277 g.
• Memory and Configuration: Three memories available for quick recall of preferred setups, enabling fast scene changes with presets.

Benefits: In a typical install, the DSP4.8BTM acts as the central digital signal processing hub, translating your source to eight finely tuned outputs across multiple amplifiers. Its high-resolution 96 kHz processing, ultra-low latency, and comprehensive EQ, crossover, and time-alignment features empower precise imaging and tonal balance in challenging listening environments. The combination of Bluetooth tuning, app-based preset management, and configurable routing makes it ideal for advanced custom builds where repeatable, studio-grade tuning is a priority.