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

Sale price $275.99 Regular price $305.99
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Key features

  • RCA inputs: 4 channels
  • RCA outputs: 8 channels
  • Channel equalizer: 8 independent parametric bands per channel
  • Crossover filters: Butterworth, Linkwitz-Riley and Bessel
  • Tuning control: Bluetooth app for iOS and Android
  • Operating voltage: 10–15 V DC


Description

Product Overview

Shape a multi-amplifier car audio system with the DS18 DSP4.8BTM, a 4-channel-in, 8-channel-out digital sound processor. Bluetooth app control, channel-by-channel tuning, and flexible signal routing give you detailed control over how your system is balanced.

Adjust the sound from a mobile device, then save up to three configurations for quick recall. The eight processed outputs let you tune channels individually for a more tailored system setup.

Key Features & Benefits

  • Bluetooth app control: Access tuning settings and manage presets through the DS18 DSP4.8BTM app, available on the App Store and Google Play.
  • Eight parametric EQ bands per channel: Adjust targeted frequency regions to shape each output to your system.
  • Selectable crossover filters: Choose Butterworth, Linkwitz-Riley, or Bessel filter types and match the slope to your tuning goals.
  • Flexible signal routing: Route inputs A, B, C, or D, or use the listed input combinations to suit different signal paths.
  • Time alignment: Set delay by time or distance to help coordinate speaker arrival in the listening area.
  • Three memory settings: Save preferred configurations for quick changes between setups.

Technical Specifications

Input channels 4; RCA, electronically symmetrical
Maximum input level 4.00 Vrms (+14 dBu)
Input impedance 100 kΩ
Output channels 8; RCA, electronically symmetrical
Maximum output level 3.50 Vrms (+13 dBu)
Output impedance 100 Ω
Equalizer 8 parametric bands per channel
Equalizer gain -12 to +12 dB
Q factor 0.6 to 9.9
Crossover filter types Butterworth, Linkwitz-Riley, and Bessel
Crossover slopes 6/12/18/24/36/48 dB per octave
Routing options A / B / C / D; A+B, A+C, B+C
Time alignment / delay 0–18.95 ms; 0–6500 mm
Phase 0° or 180° inversion
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
DC power supply 10–15 V
Maximum current 300 mA
Dimensions 5.6" × 4.25" × 1.6"
Weight 277 g
Memory Three memories

Why Choose This Product?

The DSP4.8BTM gives you eight separately processed outputs from four inputs, making it a central tuning point for a multi-amplifier build. Its EQ, crossover, routing, and time-alignment controls let you shape the system around your chosen signal path and speaker setup.

With 96 kHz sampling, 32-bit processing, and signal latency below 0.6 ms, it provides detailed digital processing for custom car audio installations.

Installation & Compatibility Notes

Plan your source and amplifier connections around the processor’s four RCA inputs and eight RCA outputs. Confirm that your system’s signal levels and installation space suit the stated input and output limits and the 5.6" × 4.25" × 1.6" dimensions.

The unit uses a 10–15 V DC power supply and has a maximum current draw of 300 mA. Check your system layout and power requirements before installation.

Frequently Asked Questions

How many inputs and outputs does the DS18 DSP4.8BTM have?

It has four RCA inputs and eight RCA outputs, all electronically symmetrical.

How do I control and tune the processor?

Use Bluetooth to access settings through the DS18 DSP4.8BTM app, available on the App Store and Google Play.

Can I adjust each output separately?

Each channel has eight parametric EQ bands, with gain from -12 to +12 dB and a Q factor from 0.6 to 9.9.

What crossover options are available?

You can select Butterworth, Linkwitz-Riley, or Bessel filters, with slopes of 6/12/18/24/36/48 dB per octave.

What power supply does it require?

The specified DC power supply range is 10–15 V, and maximum current is 300 mA.

How many setups can I save?

The processor has three memories for storing preferred configurations.

Explore More

Shop for car audio tuning equipment at 12 Volt Outlet. Want to learn more about DS18? Explore our DS18 brand profile.