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Availability:
In Stock.
Arrives
Saturday, Oct 24
Features
- HIGH RESOLUTION 32 BIT DSP PROCESSING, Delivers precise audio tuning with 96kHz sampling rate for cleaner sound, improved clarity, and accurate signal control
- 8 CHANNEL OUTPUT FLEXIBILITY, Supports multi speaker system setups with full control over each channel for custom tuning and balanced sound staging
- BLUETOOTH APP CONTROL, Easily adjust EQ, crossover, gain, and presets wirelessly through your smartphone for quick and convenient tuning on the go
- ADVANCED AUDIO TUNING FEATURES, Includes 31 band input EQ, per channel output EQ, multiple crossover types, and adjustable Q factor for detailed sound shaping
- WIDE COMPATIBILITY AND VERSATILITY, Ideal for car audio systems and custom installs, offering adjustable frequency range, gain control, and multiple memory presets for different setups
Brand: Marts Digital
Connectivity Technology: wired
Controller Type: Bluetooth
Special Feature: Equalizer
Compatible Devices: Bluetooth 4.0
Connector Type: RCA
Audio Output Mode: RCA
Surround Sound Channel Configuration: 7.1
Color: Black
Item Weight: 0.46 kg
Connectivity Technology: wired
Controller Type: Bluetooth
Other Special Features of the Product: Equalizer
Compatible Devices: Bluetooth 4.0
Connector Type: RCA
Audio Output Mode: RCA
Surround Sound Channel Configuration: 7.1
Wattage: 50 watts
Number of Channels: 8
Output Wattage: 50 watts
Supported Internet Services: Maps
Control Method: App
Audio Output Type: Speakers
Format: WAV, WMA
Wireless Technology: Bluetooth
Brand: Marts Digital
Model Number: BTX8-DSP
Manufacturer: Marts Digital
Number of Items: 1
Number of Packs: 1
Built-In Media: Marts Bluetooth DSP
Mfr Part Number: BTX8-DSP
Warranty Description: Manufacturer
Item Weight: 0.46 kg
Color: Black
Software Update Supported to Date: unknown
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Oct 24
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
After several months of research/review watching, the MARTS BTX8-DSP came out as my top choice amongst entry level DSP for car audio. The 4 INPUTS and 8 OUTPUTS was a key feature for retaining fade capabilities. Connection via Bluetooth is effortless. The app controls for setting channel routing, gains and crossover points are very responsive while the EQ section could be a bit more refined as making settings isn't as finely tuned. My DSP is managed via a Galaxy phone, so the controls may be better on a device with more screen real estate. There are other DSPs that run similar software at about $80 but most of those DSPs are limited to 2 INPUTS. For $160 this DSP gives you a lot of functionality that you find in higher end units (Audison, Audio Dynamics etc) cost several hundred dollars more. IMO this is a great unit to add if you're just getting into DSP. This is a budget DSP that doesn't perform like typical budget gear. If I hadn't already committed to an Audio Control DSP Amplifier for my other vehicle, I would seriously consider going with the MARTS BTX8 again.
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Reviewed in the United States on September 30, 2024 by Christopher Stallworth
Do not but this if you live in the USA. The software for the Bluetooth will not connect to your phone. This product is produced in China and its not compatible for US phones software. I spent days trying everything to get my Iphone and my android phone to connect to the Bluetooth. I also contacted Big Jeff the seller of this pos! His team had no clue on how to correct or upgrade the firmware to work on American based phones. I should get paid because im the one that did the research and finally found an answer from the manufacturer. I was also told no you have to use a different app thaen the one it says to use in the qp still did not work. I cleared my cash on both phones when I swapped the software think that would help! No luck and very disappointing because it seemed to be a good dsp if it would have worked. It sad that Big Jeff and Amazon would know this was an issue. You get what you pay for. Stay away from all Brazilian designed dsp because you will have issues getting it to work. Plus the only way to setup the dsp,is through the BT app. The should give you an option to plug into the app with your laptop but they dont! STAY AWAY FROM THIS DSP!
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Reviewed in the United States on May 20, 2025 by Kevlar
Why did you pick this product vs others?: For $170 this is a ton of functionality in a very small package. If you’re in the market for a DSP but don’t want to shell out $550 for a helix mini this will get you a ton of features for a fraction of the price. Make sure you use the marts digital app to connect with the device, it allows you to actually use it. Time alignment, 31band eq on each speaker and the main channel, etc etc etc it’s so so powerful. AND CHEAP. And small!
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Reviewed in the United States on July 13, 2025 by Turner
My first dsp and I love it so far!!! Once you get used to the app the tuning is amazing!!! Sound good no noise it’s easy to install and for the Bluetooth part that every one it asking yes it does Bluetooth for tuning and streaming music you just have to put the Bluetooth input in the channel routing on only thing I don’t like is to my knowledge it doesn’t state why Bluetooth it has but the Bluetooth does work and the turning is great!! But the lack on information for the product is what I don’t like I put mine on a cooler build I’ll put some pictures (not done yet)
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Reviewed in the United States on March 23, 2026 by Josuemartinez
This is my second DSP, this is the one to get. Strong signal, no noise, compact, inexpensive, easy to adjust using your phone, inexpensive, several memory slots that you can share, EQ in/out for every channel, delay, crossovers, etc. I could go on and on, it's a budget GEM. Get it!!
Reviewed in the United States on June 5, 2024 by JimMortgage
Very happy with this product. Cleaned up the noise I was getting and that annoying speaker pop when I turned the car off. Very clean sound now. I wish you didn't have to log into it every time but im still giving it 5 stars.
Reviewed in the United States on August 1, 2025 by RobPat187
The Bluetooth connectivity is the downfall of this product. It's a great compact unit with lots of capabilities, but I could not get the bluetooth connection to last longer than 30secs - I tried on iPhone, iPad, and Android phone.... If the manufacturer would fix the bluetooth implementation, this would be an excellent product...
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Reviewed in the United States on August 29, 2026 by BT
Do not buy! Another reviewer confirmed that the Bluetooth doesn’t work, and I've run into similar problems. The app is outdated and incompatible with the latest Android versions. It attempts to connect but freezes indefinitely, while the Bluetooth indicator just keeps blinking. I also discovered this product isn’t actually made by Marts. It appears to be a rebranded—or possibly cloned—DSP, as I’ve found at least three different companies selling the same unit with only minor variations in the enclosures. My guess is that they’re sourcing the PCB boards from China, fabricating custom enclosures, and slapping their brand names on them. If I had to guess, these are cloned evaluation boards originally designed by SigmaDSP, a division of Analog Devices. They are known for developing high-fidelity yet budget-friendly integrated DSP ICs—essentially self-contained 32-bit DSP/EQ/Crossover systems on a single chip. I really resent how these companies are scamming customers, charging upwards of $500 for something that could be built with a $13 SigmaDSP chip, a $20 PCB, $10 in RCA connectors, $10 Bluetooth module, and a $20 enclosure. They all sound identical anyway, since it’s the same SigmaDSP chip doing all the work.
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Reviewed in the United States on November 12, 2025 by Arcadian