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Free standard shipping on select products
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
DS18 i48DSP
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.
Please allow 3–7 business days for shipping. We only ship to the lower 48 states.
On some items, our live inventory may be depleted from previous days’ sales. In these cases, we may drop ship the item once it becomes available. If inventory is not in stock at the time of fulfillment, ATU will notify you with a resolution regarding backorder status.
Please be advised that ATU ships from over 10 warehouses across the U.S. In some cases, items may be drop shipped to help speed up delivery times. On heavily discounted parts (i.e. differentials), tracking information may not be provided.
Our site is always available whenever you want to upgrade your ride. Orders can be placed 24/7/365.
Our passionate customer support team is happy to help with any questions or concerns.
Email: orders@allthingzutv.com
Phone: 256-686-4888
For returns, please use the link at the top of this page to access our return form. Download, print, and fill out the form completely, then ship it in the same box as the product you are returning.
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