Descriptions

About: DS18 i48DSP Digital Sound Processor with Bluetooth Control

4-Input / 8-Output Digital Sound Processor with Bluetooth and App Control

DS18’s i48DSP gives you total command over your sound system! With 4 RCA inputs and 8 fully configurable RCA outputs, this DSP (digital sound processor) lets you build and fine-tune your audio experience across any setup.

Bluetooth App Control

Set crossover points, time alignment, limiter, and EQ right from your phone. Integrated with Bluetooth Version 5.1, the i48DSP lets you make live tuning adjustments wirelessly using DS18’s iDSP app (iOS and Android).

High-Performance Audio Tuning

Equipped with a 96kHz/32-bit sampling rate DSP chip (AK7735) and CS4344 signal conversion, the i48DSP gives you pinpoint audio control. It features a 31-band parametric EQ on each channel, routing with mixing, bandpass filtering, limiter per output, and a built-in noise gate: all with impressively low distortion (0.04% THD).

Clean Signal, Low Noise

With an output of up to 3.3V and a 101dB signal-to-noise ratio, the i48DSP ensures ultra-clean sound with minimal interference. It also includes clip and limiter LEDs to prevent distortion and protect your equipment during high-output sessions.

Built to Fit Anywhere

This compact DSP is housed in a brushed aluminum body with surface-mount technology and anti-corrosion PCB coating. Designed to work with all systems, the i48DSP installs easily into a variety of vehicles and integrates seamlessly with aftermarket or OEM systems.

Features:

• 4 RCA inputs and 8 fully configurable RCA outputs
• Bluetooth 5.1 iOS/Android app control
• 96kHz/32-bit sampling rate with AKM DSP chip
• 31-band parametric EQ per channel, crossover and limiter control
• Output up to 3.3V with 101dB S/N ratio and <0.04% THD

General Specifications:

• Operating Voltage: 9.5~15V
• Power Consumption: 300mA
• Recommended Fuse Rating: 1A
• Power Input Terminal Size: 16Ga
• LED Indicator: Power / BT / Clip / Limiter
• Voltmeter: Yes (App)
• Remote Turn-on (Input): Yes
• RCA Connector Type: Tiffany
• Housing Material: Aluminum
• Body Color / Finish: Black / Silver Brushed
• Compact Size to Easy Installation for Any Applications: Yes
• PCB with Anti-Corrosion Protection Coating: Yes
• Surface Mount Component Technology: Yes
• Smartphone APP Connectivity: Yes, Android and Apple devices
• Settings Presets: Yes, (6 presets / Local Device)

Audio Specifications:

• Frequency Response: 20Hz-20KHz
• S/N Ratio: 101dB
• THD: 0.04%
• Input Sensitivity (Low-Level): 200mv-6V
• Output Voltage: Up to 3.3V
• Balanced Input Noise Rejection: 94dB
• Stereo Separation: 93dB
• Time Alignment: 0~20ms
• DSP Chip: AKM AK7735
• Sampling Rate: 96KHz/32bit
• Signal Conversion AD/DA: CS4344
• BT Audio Receiver: 5.3v
• BT Audio Codec: SBC / ACC
• Noise Gate: Yes, adjustable (-60~-120dB)
• Routing Channels: Yes, Adjustable with Mixing

Equalizer Section:

• Type of Equalizer: Parametric (Each CH) / Graphic (General)
• Number of Bands: 31 (Each CH / General)
• Frequency Point: Selectable (Each CH)
• Boost/Cut: 18dB(+/-)
• Q Factor: 0.3~15 (Each CH)

Crossover Section:

• Crossover Ways: 8 (Each CH)
• Crossover Slopes: ButterWorth 6~48dB/Oct / Bessel 12~48dB/Oct / Linkwitz 12~48dB/Oct
• Frequency Cut-off: Selectable 20Hz-20KHz (HPF/LPF/BAND-PASS)
• Phase (Polarity): 0?/180? Selectable (Each CH)

Limiter Section:

• Channels: 8 (Each CH)
• Threshold: 6~-60dB
• Attack: 0~200ms
• Release: 0~990ms
• Auto Mode: Yes (Attack and Release)

Measurements:

• Overall Length: 5.3" / 135mm
• Overall Width: 3.25" / 83mm
• Overall Height: 1.3" / 34mm