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Windows-Based GUI
The DSP-408 is easily controlled via a Windows application developed by Dayton Audio. This application features all the tools you could need to make your audio system sound its very best, while still being easy to use.
Versatile Connections
The DSP-408 gives you versatile connections, including RCA, Bluetooth inputs, as well as remote control connections and RCA outputs. A 12V wire harness connection makes implementing the DSP-408 easy for car audio applications.
Optional Wired Remote Control
The allure of a wired remote control is obvious when installing in a mobile environment. Being able to effortlessly control the volume and which preset you are using is an invaluable feature. To satisfy the need for the customers installing the DSP-408 in a mobile environment, Dayton Audio has offered the DSP-NRC as an optional accessory.
Package Contents
- 1 x DSP-408 Processor
- 1 x Power Adapter (12V, 1.5A)
- 1 x High-Level/Power Input Harness (16-pin)
- 1 x USB A to B Cable (10 ft.)
- 2 x Mounting Brackets
- 4 x Mounting Bracket Machine Screws
- 4 x Mounting Screws
- 4 x Rubber Cushion Pads
- 1 x Introduction Card
Software Features
- 10-band parametric equalizer per channel
- High and low shelf EQ per channel
- Variable crossovers: High/Lowpass slopes 0-24 dB, Linkwitz-Riley/Butterworth/Bessel
- Time delay: 0 to 277 cm or 8.1471 ms adjustable in 1 cm steps
- Input/Output mixing to customize the signal path
- Phase adjustment
- Customizable name/ID for each of the 6 presets
- Load, save, recall, or delete preset files
Mike
2025-08-17 16:49:31
I took care to avoid ground loops in my car audio installation. I used this with a Dayton DAC and some attenuators for physical volume knobs for USB audio input with a tablet. The Bluetooth streaming also sounds good. My biggest complaint is it takes WAY too long to switch presets (via Bluetooth from Android app) and cuts audio while it does it. The good news is, with 8 channel tuning with an added main and sub volume knob, I hardly ever want to change it from my main setting. For the price point I am plenty satisfied. I will update my review if my opinion changes
Summit
2025-07-14 13:23:00
Despite using high end components, my car stereo had some dead spots in it where it just sounded flat. I tried several different approaches and then is dawned on me- I used a DSP for my other systems at home (dbx driverack) and they solve problems, so I ripped out my AudioControl components and started over with the Dayton DSPThe windows app is fine- it’s simple and makes sense. I honestly can’t believe people complain about not having a flashy app with skins etc- it’s just a tool for setting up your rig. Thank you for NOT making some silly bling app. The capabilities are exceptional and everything works exactly as expected. The sound is clean and clear, and it can do everything I need. Now, thanks so a calibrated microphone and an RTA app... it’s finally a good sounding system.If they wanted to take it a step up, I’d appreciate a sub harmonic synth or a BBE type processing ability or license AudioControl’s much sought after ESP2 and build in the capability. I’d put one in all my cars if they added those features.All in all,I absolutely love this DSP- it’s finally made car audio SO much easier. Anyone can now have a killer system if they take the time to set up properly.My system: Chevy MyLink head unit, Dayton DSP, Alpine Amos for sub and fronts, stock Boston Acoustics amp for rear speakers. All Polk MM components & Polk MM 10†sub. AudioControl ESP2 and Epicenter.
Judith H.
2025-06-13 18:03:23
If you're not using this for your subwoofer, you're missing out—100%.Subwoofers are never naturally flat in response, which often leads to a boomy peak between 35-70Hz while completely missing the deep low-end. That’s where the Dayton DSP-408 comes in—it lets you precisely tune your sub for a truly flat response and unlock the deep bass you’re meant to hear.I run a Rockford Fosgate Punch 15" P3 in a small sealed enclosure, which gives me tight, controlled bass but normally rolls off around 37Hz, just as Rockford Fosgate states. My amp has a 30Hz bass boost, which helped extend it slightly, but with the DSP-408, I was able to dial it all the way down to 23Hz—something I never thought I could do in such a compact box.Best part? My wife is happy since I don’t need a massive enclosure to get deep bass. Instead, I just fine-tuned the response with this DSP to get that ultra-low, clean, and powerful bass—without the extra bulk. If you want true control over your sub, this is a must-have. 😎
J-Lane
2025-05-31 12:56:23
I purchased this this unit to replace a different brand DSP that was introducing unwanted distortion. I had read reviews on this unit and saw many mentions of background hiss or a hum typically caused by a ground loop (poor grounding). I thought maybe these people hadn't taken the proper steps to ensure they had a properly grounded system or they were using cheap RCA cables.I connected the unit in place of my previous DSP which was a cheap unit but had no noise issues. The sound quality while my vehicle was off was excellent and I had no background hiss or noise. I messed with some settings via the PC program and its very easy to use. Unfortunately this was short lived after starting my vehicle. There was a constant low frequency hum and a high pitched whine that increased in frequency when my engine RPM increased. I decided to try some troubleshooting to verify there was no issues with my install.I decided to run a temporary ground and power line directly to the battery just to see if it would help. It did not.Even though I know my connections are very good I decided to go through all of my entire system and verify everything was still secure. (I really wanted this DSP to work) I found no issues with my system connections.I read in one review that someone "resolved" the issue by removing the REMOTE IN connection and having the unit turn on via the RCA signal. Again, no change.I even ran a temporary set of RCA cables with no change at all.When I removed the unit from the signal chain completely there is absolutely no noise at all.I'm fairly certain the issue is not on my end. My system consists of a Pioneer Head unit, Rockford Fosgate amplifiers, Knukonceptz Krystal RCA cables, and Knukonceptz 0 gauge OFC power from the battery to both amplifiers and the alternator and dual 0 gauge grounds on my battery with brand new battery terminals and a new battery. All ground connections have all paint removed and are connected with a gold plated terminal blocks and I apply an electrolytic compound between the terminal block and vehicle that improves and protects the connection.I understand a device maybe being limited in options because it has a lower price point. However I can't understand how a device could be sold with this kind of issue and it hasn't been addressed with an improved design. I would be more than happy to pay an additional $50 if this was resolved in a redesign as it would still come in much cheaper than most other DSP's.PROS: Easy to install, easy to setup and control, great sound quality.CONS: Overpowering hum and whining noise while vehicle is running unfortunately makes this unit unusable for car audio. 😞
Spencer Harris
2025-05-15 16:27:22
Purchased this because of the features to better incorporate my mismatched 4 home theater subwoofers. It offers incredible flexability.For my set up I have a pair of Klipsch 15s, A Sundown 15 in a custom enclosure with a Dayton SPA 1000, and a Sundown XV3 18 with another Dayton SPA 1000 in another custom enclosure. The DSP allowed me to adjust for gaps, sensitivity differences, and frequency rolloff for all woofers from the same source signal. The ability to have input matching alone is worth the price, the parametric EQ is extremely well thought out, and the output levels being either linked or individual is an incredible advantage for room correction. When I needed some support, Dayton answered the phone within 2 minutes and a tech helped me get it set up how I wanted it to work. He stayed on the phone until it was tweaked to purfection. Nice to actually be helped by someone who wants to help instead of checking things off on some evaluation form. The warranty is awesome as well.
Customer
2025-04-16 11:43:33
I've heard that a few people have had unwanted noise issues with this unit. Personally I've had no noise problems at all. That said I put a ferrite choke on the ground approximately 3" from the dsp and I'm using audioquest tower rca's 2'. So far I'm very impressed with this dsp! The software for windows is a breeze to set up. Atm I'm using it with Focal access 2way passive and in the near future will be running 3way active again with the Focal 165AS 3.
MeGallegos
2025-03-13 18:00:03
Se tiene que tener detalles y ajustarlo muy bien apoyandote en un RTA en mi caso lo use a 4 vias y acopla muy bien el sistema no lo use con control ni bluetooth solo a la pc en ocaciones se desconectaba pero si se almacenaron los presets
Heli freak
2025-03-05 10:50:38
Firstly, no ground loop issues as other reviews have mentioned, if humming, engine whine or buzzing is an issue then the installation really needs to be investigated, most likely caused by poor or inadequate ground connections. Used this to replace a faulty Bit10. Have to say I prefer it, easy to install and the software is quite good, if you know what you're doing then it's quite quick to get it all up and running. Only downside is the availability of the remote control which is an optional item....would like to see it included as can't find one anywhere.
Sithwinder
2025-02-24 15:45:16
Also.Ich hatte vorher von Alpine die PXA-H700 und 701.Im großen und ganzen kann der Dayton 408 mit(!) dem zusätzlichem BT Modul und der Bassfernbedinung das gleiche für wesentlich weniger Geld. Abstriche sind nur die Anschlussmöglichkeiten, wobei ich aber dazu sagen muss das ich auch beim Alpine nur die 2 analogen Aux in benutzt habe. Alles andere läuft in der Regel über die Headunit.Die Dayton App für das Handy ist absolut ok und kann 1 zu 1 das selbe wie das PC Programm.Vieleicht noch einen kleinen Minuspunkt der aber nur für Spielfreudige Menschen ernstzunehmend ist. Ich hätte mir gewünscht die Laufzeit über die seperat erhältliche Fernbedienung steuern zu können. Das geht zwar auch per App aber halt doch etwas zu leichtgängig und etwas ungenau wenn man ein wenig mit dem Gehör nachbessern will. Manchmal bleibt ein Drehrädchen halt doch besser als ein Touch Display.Ich habe den Dsp sowohl im Auto als auch zuhause für den Aktiv Betrieb ausprobiert.Alles in allem 4 Sterne. Preis Leistung eher 5
matteo
2025-02-09 09:05:10
Dsp base con app dedicata (basta comprale la chiavetta bluetooth) tramite app equalizzi, cross, mix canali, ritardi; su impianto auto amplificato non da rumori di fondo, funziona perfettamente consigliatissimo (almeno per ora vedremo se dura nel tempo ^_^)
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