---
product_id: 71469052
title: "Dayton Audio DSP-BT4.0 Bluetooth Data and Streaming USB Interface for DSP-408"
brand: "daytonaudio"
price: "FREE"
currency: EUR
in_stock: false
reviews_count: 5
url: https://www.desertcart.be/products/71469052-dayton-audio-dsp-bt4-0-bluetooth-data-and-streaming-usb
store_origin: BE
region: Belgium
---

# Plug & play USB interface Android app wireless control aptX Bluetooth streaming Dayton Audio DSP-BT4.0 Bluetooth Data and Streaming USB Interface for DSP-408

**Brand:** daytonaudio
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 🎧 Elevate your sound. Control your vibe. Anywhere, anytime.

## Quick Answers

- **What is this?** Dayton Audio DSP-BT4.0 Bluetooth Data and Streaming USB Interface for DSP-408 by daytonaudio
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/71469052-dayton-audio-dsp-bt4-0-bluetooth-data-and-streaming-usb)

## Best For

- daytonaudio enthusiasts

## Why This Product

- Trusted daytonaudio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Powerhouse Design:** Lightweight and sleek, it integrates flawlessly into your audio setup without clutter.
- • **Effortless USB Plug & Play:** Instantly connect the compact dongle—no bulky laptops needed for setup or adjustments.
- • **Total Wireless DSP Control:** Fine-tune every channel and setting from your Android device anytime, anywhere.
- • **Seamless aptX Bluetooth Audio:** Stream high-quality, low-latency sound directly to your DSP-408 without wires.
- • **On-the-Fly Sound Customization:** Adjust volumes and presets in real-time with intuitive mobile app controls.

## Overview

The Dayton Audio DSP-BT4.0 is a compact Bluetooth 4.0 USB dongle designed exclusively for the DSP-408, enabling high-quality aptX audio streaming and full wireless control via an Android app. It eliminates the need for wired connections or laptops, empowering users to effortlessly customize and manage their audio system on the go with precision and convenience.

## Description

Stream your favourite music to your Dayton Audio DSP-408 with the DSP-BT4.0. This Bluetooth dongle not only allows you to stream audio content directly to your DSP-408, it also allows you to wirelessly control your DSP with the DSP-408 Android app. Highlights * Stream your favourite music to the DSP-408 with aptX Bluetooth * Wirelessly control your DSP-408 from an Android device Product details Dayton Audio DSP-BT4.0 Bluetooth Data and Streaming USB Interface for DSP-408 Stream your favourite music to your Dayton Audio DSP-408 with the DSP-BT4.0. This Bluetooth dongle not only allows you to stream audio content directly to your DSP-408, it also allows you to wirelessly control your DSP with the DSP-408 Android app. In the modern age of mobile devices, breaking out the bulky laptop to make modifications to your sound system can seem like a chore. That's why Dayton Audio has given you the option to connect to your DSP via your Android mobile device using the DSP-BT4.0. This Bluetooth 4.0 dongle allows users to completely tune their DSP via the mobile DSP-408 Android app. In addition, the user can also use their mobile Bluetooth device as an audio source, and stream directly to the DSP itself.

Review: Bought the date and DSP 408 to add to my system since it was at such a great price point for what you get. After using it with just the laptop connected to it for a while decided to pull the trigger on the Bluetooth module as well and couldn't be happier. Very easy to install and use and the app is a breeze and allows you to do changes on the fly instead of having the boot up the laptop connect it etc. Definitely would recommend 5 out of 5 stars. Using it in a car audio setup with stock head unit. 2008 Acura TL type S stock HU, Dayton DSP-408, Audio Apex CAB M-165 5CH AMP.
Review: No sound? Seems DOA (Dead on Arrival)? Tech support said unit out of box will have no sound because all volumes are set to 0 initially. To change them I used the opt USB dongle https://www.desertcart.com/gp/product/B07FNC6L34/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 and Goodle Play Store app https://play.google.com/store/apps/details?id=leon.android.chs_ydw_dcs480_dsp_408) as I have android. I guess with windows, you don't need the bluetooth dongle for your phone if a direct wire is ok. Not sure about that though. App is not super intuitive, until you get used to how they think, so no discouragement just yet, ok! To get sound working, you have to increase several volumes via the app by finding the main volume control, then volume controls at each of the 8 channels one by one and at each of the 4 Input channels. Just kick any volume control up you find, we're just trying to get it working at this point, right? Initial setup to get sound working: 1) Download playstore App and plug in opt usb dongle (at least this is how I did it with android phone and bluetooth successfully paired to phone) 2) With app loaded in phone and USB dongle plug into unit for maybe 30 seconds, open the app. The phone should show a upload progress popup starting within a few seconds and a on screen power button symbol in upper right corner should go from red to green. Has to be green before continuing successfully. If all is good so far, the upload progress popup changes to a success popup after a few seconds. If not, make sure you're still paired to unit via phone's built in bluetooth app and if still no go, remember reboots are your friend. Reboot nit with USB dongle inserted and the with units small power led illuminated confirming phone is still paired. Processes are not super fast, so try to have a little patients. About 60 seconds worth of patience is plenty. 3) Phones app Initial screen should show main volume left/right slider. Slide it right to increase. 4) Scroll down to boxes 1 -> 8 (each representing a channel) and select one of the boxes and selecting each function box below that, increasing any volumes you find. Volume output should respond immediately if full audio is present, no audio..look for more volume controls. It's going to be a input volume, output volume or main volume or you don't have live audio in or the out is not connected. Can touch the RCA centers or click against each other to listen if amp is responding. 5) Continue volume search and increases for each channel individually (8 total) just to get some sound output 6) Voilà, sound through your amp and speaker.....right? 7) No?, darnit...well I tried. Call tech support on the condition they don't criticize my steps, I'm very sensitive you know. 1-800-338-0531 or email at tech@parts-express.com. Notes: -If you want to recall some favorite settings from the apps screen using clickable boxes (or by pressing the opt and cool looking wired volume control), then this function is it. This is why there is a Save button, click it then select either [Save] or [Recall]. -If you're hardwired, switch off (move left) the "steaming" slide switch (upper right corner) to prevent usb stream bypass of your wires. -To exit app, click the common looking circle power button icon little power circle icon changing it from green to red (upper right corner) to disconnect app from unit. Unit settings will not change because of the disconnect. If at any time the symbol is red, your not connected and screen changes will not be accurate or saved most likely. This can cause undo hair loss from pull hairs out of your head in frustration. -If background audio noise is heard during pause or quiet sections, consider using a set of Isolation Transformers inline @ at the RCA input Jacks. They are available in increments of 4 transformers good for 4 channels (need two for all 8 input channels) at JacobsParts (AP3054) https://www.desertcart.com/gp/product/B00TEED91K/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1. You probably know, these can't solve all noise issues as noise can have different sources needing different kinds of filters. These are for grounding and dc noise. Noise that usually DOES NOT goes away when the low level RCA amp input is unplugged or noise that follows engine revs most likely need a different filter. Does not support speaker level amp inputs. Wish list- A spatializer/ambience/3D function selectable by channel.

## Features

- Stream your favourite music to the DSP-408 with aptX Bluetooth
- Wirelessly control your DSP-408 from an Android device
- Allows users to completely tune their DSP via the mobile DSP-408 Android app

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FNC6L34 |
| Are Batteries Included | No |
| Brand | DAYTONAUDIO |
| Customer Reviews | 4.4 4.4 out of 5 stars (260) |
| Date First Available | 16 Feb. 2025 |
| Guaranteed software updates until | unknown |
| Hardware Platform | Laptops |
| Item Weight | 9 g |
| Item model number | DSP-BT4.0 |
| Manufacturer | DAYTONAUDIO |
| Operating System | Android |
| Product Dimensions | 5.89 x 3.99 x 1.6 cm; 9 g |

## Product Details

- **Audio output mode:** Stereo, Mono
- **Brand:** DAYTONAUDIO
- **Compatible devices:** Laptop, Smartphone
- **Hardware interface:** Bluetooth
- **Platform:** Android, iOS

## Images

![Dayton Audio DSP-BT4.0 Bluetooth Data and Streaming USB Interface for DSP-408 - Image 1](https://m.media-amazon.com/images/I/61jrNMcLICL.jpg)
![Dayton Audio DSP-BT4.0 Bluetooth Data and Streaming USB Interface for DSP-408 - Image 2](https://m.media-amazon.com/images/I/51kiuvzBCXL.jpg)
![Dayton Audio DSP-BT4.0 Bluetooth Data and Streaming USB Interface for DSP-408 - Image 3](https://m.media-amazon.com/images/I/71rFTxMtfJL.jpg)

## Questions & Answers

**Q: Can not find this dongle anywhere there has to be another bluetooth dongle that can be used right? it's just a aptx bluetooth dongle**
A: Yeah, been sold out for awhile. Not sure if other bluetooth dongles will be compatible. You can give it a try and let others know if it did or didn't work.

**Q: Will tuning save in the Dsp so I can disconnect the dongle?**
A: Absolutely yes.

**Q: Does this work with Apple airplay?**
A: It's Bluetooth. Works with Bluetooth devices.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by F***T on 4 September 2023*

Bought the date and DSP 408 to add to my system since it was at such a great price point for what you get. After using it with just the laptop connected to it for a while decided to pull the trigger on the Bluetooth module as well and couldn't be happier. Very easy to install and use and the app is a breeze and allows you to do changes on the fly instead of having the boot up the laptop connect it etc. Definitely would recommend 5 out of 5 stars. Using it in a car audio setup with stock head unit. 2008 Acura TL type S stock HU, Dayton DSP-408, Audio Apex CAB M-165 5CH AMP.

### ⭐⭐⭐⭐⭐ Review
*by R***N on 17 August 2019*

No sound? Seems DOA (Dead on Arrival)? Tech support said unit out of box will have no sound because all volumes are set to 0 initially. To change them I used the opt USB dongle https://www.amazon.com/gp/product/B07FNC6L34/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 and Goodle Play Store app https://play.google.com/store/apps/details?id=leon.android.chs_ydw_dcs480_dsp_408) as I have android. I guess with windows, you don't need the bluetooth dongle for your phone if a direct wire is ok. Not sure about that though. App is not super intuitive, until you get used to how they think, so no discouragement just yet, ok! To get sound working, you have to increase several volumes via the app by finding the main volume control, then volume controls at each of the 8 channels one by one and at each of the 4 Input channels. Just kick any volume control up you find, we're just trying to get it working at this point, right? Initial setup to get sound working: 1) Download playstore App and plug in opt usb dongle (at least this is how I did it with android phone and bluetooth successfully paired to phone) 2) With app loaded in phone and USB dongle plug into unit for maybe 30 seconds, open the app. The phone should show a upload progress popup starting within a few seconds and a on screen power button symbol in upper right corner should go from red to green. Has to be green before continuing successfully. If all is good so far, the upload progress popup changes to a success popup after a few seconds. If not, make sure you're still paired to unit via phone's built in bluetooth app and if still no go, remember reboots are your friend. Reboot nit with USB dongle inserted and the with units small power led illuminated confirming phone is still paired. Processes are not super fast, so try to have a little patients. About 60 seconds worth of patience is plenty. 3) Phones app Initial screen should show main volume left/right slider. Slide it right to increase. 4) Scroll down to boxes 1 -> 8 (each representing a channel) and select one of the boxes and selecting each function box below that, increasing any volumes you find. Volume output should respond immediately if full audio is present, no audio..look for more volume controls. It's going to be a input volume, output volume or main volume or you don't have live audio in or the out is not connected. Can touch the RCA centers or click against each other to listen if amp is responding. 5) Continue volume search and increases for each channel individually (8 total) just to get some sound output 6) Voilà, sound through your amp and speaker.....right? 7) No?, darnit...well I tried. Call tech support on the condition they don't criticize my steps, I'm very sensitive you know. 1-800-338-0531 or email at tech@parts-express.com. Notes: -If you want to recall some favorite settings from the apps screen using clickable boxes (or by pressing the opt and cool looking wired volume control), then this function is it. This is why there is a Save button, click it then select either [Save] or [Recall]. -If you're hardwired, switch off (move left) the "steaming" slide switch (upper right corner) to prevent usb stream bypass of your wires. -To exit app, click the common looking circle power button icon little power circle icon changing it from green to red (upper right corner) to disconnect app from unit. Unit settings will not change because of the disconnect. If at any time the symbol is red, your not connected and screen changes will not be accurate or saved most likely. This can cause undo hair loss from pull hairs out of your head in frustration. -If background audio noise is heard during pause or quiet sections, consider using a set of Isolation Transformers inline @ at the RCA input Jacks. They are available in increments of 4 transformers good for 4 channels (need two for all 8 input channels) at JacobsParts (AP3054) https://www.amazon.com/gp/product/B00TEED91K/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1. You probably know, these can't solve all noise issues as noise can have different sources needing different kinds of filters. These are for grounding and dc noise. Noise that usually DOES NOT goes away when the low level RCA amp input is unplugged or noise that follows engine revs most likely need a different filter. Does not support speaker level amp inputs. Wish list- A spatializer/ambience/3D function selectable by channel.

### ⭐⭐⭐⭐⭐ Review
*by J***Y on 8 November 2019*

Great product with Crystal clear audio transmissions... Connects immediately and response is very fast!

## Frequently Bought Together

- Dayton Audio DSP-BT4.0 Bluetooth Data and Streaming USB Interface for DSP-408
- Dayton Audio DSP-408 4 Input 8 Output DSP Digital Signal Processor with Built in EQ Crossovers, Tim Alighment, and in-Put/Output Mixing for Home and car Audio
- Dayton Audio DSP-NRC Wired Remote Control for DSP-408

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---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-05-05*