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Availability:
In Stock.
Arrives
Thursday, Jun 18
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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 Kilograms
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
Output Power: 400 Watts
Wattage: 50 watts
Number of Channels: 8
Output Wattage: 50 Watts
Supported Internet Services: Maps
Control Method: App
Audio Output Type: Speakers
Wireless Technology: Bluetooth
Format: WAV, WMA
Brand: Marts Digital
Model Number: BTX8-DSP
Manufacturer: Marts Digital
Mfr Part Number: BTX8-DSP
Warranty Description: Manufacturer
Built-In Media: Marts Bluetooth DSP
Item Weight: 0.46 Kilograms
Color: Black
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Jun 18
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
This DSP performs very well. It has a 32-band graphic equalizer for the main inputs (4) and a 16-band parametric equalizer for each output (8) for each speaker. Think about the amount of control you can have. 1- I matched my voltage for the outputs and inputs correctly. 2- I did the crossover cuts. 3- I flat-eq the system with a little bump in the low frequencies. The results were truly remarkable, with the system delivering an incredible sound. 4- I could tweak every speaker to my liking, and the result was phenomenal. One more thing: It produced almost 5 volts out with no distortion whatsoever, and my amps are running super cool. My sub gain is set at about 11 o'clock, and my front/rear at 9. Even if you are off a budget, I recommend this unit. The Bluetooth connects super fast, the app is very user-friendly, and it has a limiter, master gain, channel gain, time corrections, you name it. This is a super unit. It is 100% recommended.
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Reviewed in the United States on October 22, 2024 Reviewed in the United States on October 22, 2024 by Jorge
Oh yes. This is really deal. Sound quality is just awesome. I had used stetsom Bluetooth dsp before this and it sounds terrible. Just alone using this fixes audio quite a bit but remember you have to play with it and your EQ to get it just right. I was having distortion on my sub channel before and this fixes that by letting me cut off certain frequency. And yes you get 4 in 8 out channels 31 bands EQ AND 31 bands parametric EQ per channel. You don’t get 31 parametric EQ in most DSPs at this price range for all 8 channels. Really allow you to dial in. Build quality is also nice . You get shinier front side with clip for left and right channels. Also 8 limiter LEDs that also serve as clip when limiter not used. I’m using this for 4 channel amp and 2 skar evls 12 alongwith pioneer headunit. You also get a sticker with it. Packaging also feels premium. Overall fully satisfied.
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Reviewed in the United States on April 12, 2025 Reviewed in the United States on April 12, 2025 by Mandeep Singh
The BTX8 from Marts Digital is an affordable compact DSP. I struggled to get the app in the Amazon listing to work on my Android device, but Marts Digital sent me a link to the previous app and it works just fine. The unit is so compact that I installed it under the dash. I am using 4 channels in and 4 channels out. The time delay allowed me to center the sound stage. Each output channel has a 31 band EQ that is very flexible There are 6 memory locations for quick uploads of different tunes and a save file function for programming offline. I am a beginner with using a DSP but the BTX8 was straightforward to setup and I am happy with the results.
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Reviewed in the United States on June 21, 2025 Reviewed in the United States on June 21, 2025 by mike nelson
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
Sound awesome compared to my 400.00 dsp
Reviewed in the United States on June 10, 2026 by Duane Benjamin
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
Worked first time when finally got set up then had issues with battery after that dsp went out nothing saved purchased new Stetson Dsp . WOWW ALOT Better ... 🔊
Reviewed in the United States on August 28, 2025 by Cesar C.
I'm using this with the AEDIKO "AC to DC Isolated Power Supply Module 110-245V to 12V Power Supply Module 12V 6A 70W Isolation Power Module with Overvoltage Overload Short-Circuit Protection" to DSP my theater subs. I'm feeding the sub outs (2 for now) from my Anthem MRX1140 to this device and then sending it to a Crown XLS2002 amplifier. It's wild that you get 4 ins ( labeled a,b,c,d for some reason) and 8 outputs ( Labeled 1,2,3,4,5,6,7,8) I'll amend my review if this product doesn't last a year but for now I'm stoked. **Note, Had to download the app from the website (qr code in the box) which required turning off auto blocker. Turned it back on once the download was completed.
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Reviewed in the United States on March 1, 2026 Reviewed in the United States on March 1, 2026 by hyfynut