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Customer Reviews

Infinity DSP4425

4-channel car amplifier with digital signal processing — 25 watts RMS x 4

MFR # INFDSP4425AM

Infinity DSP4425

Infinity DSP4425

4-channel car amplifier with digital signal processing — 25 watts RMS x 4

MFR # INFDSP4425AM

5 reviews
View this product

Bensalem

Drew from Bensalem on 7/30/2022

2014 Honda Accord

Verified customer (What's this?)
Verified employee purchase (What's this?)

Made my factory radio life in my 14 accord so much better! I have this guy ran to 4 infinity reference speakers and pre amp outputs on channel 5 and 6 made my install of a secondary class d mono amp that powers dual 12 inch kicker LQ7 solo berrics a dream

Pros:

Cons: None!

Crutchfield response on

0 of 0 found this helpful

Setup video

JOHN from Backus, MN on 6/8/2022

2013 Ford Focus

Verified customer (What's this?)
Verified employee purchase (What's this?)

Five Star Car Stereo has a setup video for this amp/dsp on YouTube. They do a excellent job of showing how to setup the dsp.

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Meh.

Eric H from Swainsboro, GA on 10/26/2021

2016 Mazda 6

Verified customer (What's this?)
Verified employee purchase (What's this?)

I had high hopes for this but was let down. Unit died the day after I installed it. Before it died, the sound was decent paired with Infinity Reference speakers. The DSP software isn't very intuitive and there is virtually no information provided by Infinity on how to set it properly. I purchased this on sale but for the current price you are better off with the ACM 4.300 from Audiocontrol.

Pros: DSP and amp in one small package.

Cons: Low power for the price. Zero information on tuning the DSP software.

Crutchfield response on 10/27/2021
Eric contacted our Customer Support team and set up a return. Purchases from Crutchfield can be returned or exchanged within 60 days.

0 of 0 found this helpful

Infinity DSP4425

Crutchfield customer from Granger, IN on 6/6/2021

2020 Ram 1500

Verified customer (What's this?)
Verified employee purchase (What's this?)

So far after a short time having this in my 2020 Ram I'm really impressed. ( as is everyone who's heard the difference). I had to by pass the active noise system but was able to do all this by removing the factory amp under driver seat and make all connections without having to get behind factory radio. I have upgraded factory speakers to infinity and hope to add another amp and a sub or two crown the road. I highly recommend this if you want better quality sound and having the control to do it to meet your preferred listening experience.

Pros:

Cons:

Crutchfield response on

2 of 2 found this helpful

Infinity DSP4425

Crutchfield customer from Dededo, GU on 6/1/2021

2020 Subaru WRX

Verified customer (What's this?)
Verified employee purchase (What's this?)

There isn't much coverage on this dsp but with Crutchfield research, I took a chance and it was worth it! It has high level inputs, Enough amplified power for 4x out, plus with the software you can fine tune the signal that most headunits alter once you crank the volume. you can add an amp or connect amps. Big things comes in small packages

Pros:

Cons:

Crutchfield response on

4 of 4 found this helpful

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