Time for a change

[Recover]

I now run a PPI DCX 1000.1 running 2 IDQv3 subs. A shop in town has had this US amp MD23 sitting on the shelf for a few years now never been used and has marked it way down. Comparing the specs it seems like the US amp would be better for SQ but it is an A/B so the PPI is probably more efficient. PPI S/N 80%, US amp S/N 105%, PPI damping 50, US amp damping 600. I also like the fact that I can run my subs at 2ohms instead of 1 ohm. Anyways this is something I don't have to do but it would be nice to try something new. I don't want the US amp if it's going to drain my electrical system real bad. Any input would be greatly appreciated

[Dr Zeus]

I dont have much opinion on either amp but I dont think either would be totally ideal for the best SQ performance. I'd probably sway tward the USAmp or look elsewhere. Incidentally I'm more keen on the real old stuff made in the US.

[RiLoWa]

After looking at the manuals for both amps, the PPI makes it's 1000 Watts at 1 Ohm load while the US Amps makes it's 1000 Watts bridged into a 4 Ohm load or 2 Ohm load in two channel mode. Both have about similar features of low pass, subsonic, bass boost, etc. but the PPI has a phase switch. In my opinion, you will probably not hear the difference between the S/N ratios, unless you are sitting right next to the subs.

Is there something specific that you are unhappy with on the current install?

I think I would recommend that keep the amp you already have, or like advice from above look at something else. Free - $.02

[DJNUBZ]

The answer is that it depends. If you are looking for better sound you should be looking elsewhere, what is your front stage? What head unit do you have? Are you running a processor? How well tuned is your vehicle?

[Recover]

Originally Posted by RiLoWa

After looking at the manuals for both amps, the PPI makes it's 1000 Watts at 1 Ohm load while the US Amps makes it's 1000 Watts bridged into a 4 Ohm load or 2 Ohm load in two channel mode. Both have about similar features of low pass, subsonic, bass boost, etc. but the PPI has a phase switch. In my opinion, you will probably not hear the difference between the S/N ratios, unless you are sitting right next to the subs.

Is there something specific that you are unhappy with on the current install?

I think I would recommend that keep the amp you already have, or like advice from above look at something else. Free - $.02

I really thought it would be nice to try something new.
Two things I don't like about the PPI is some of the higher bass notes don't seem to be as smooth. My other reason is stupid but when I first started putting this all together about 8yrs ago I was getting advice from someone who praised PPI so I went out and got one only to find out that they were bought out by DEI. Stupid yes. However it still is a good SQ amp and I love being able to set the Q at 30hz and pulling those low notes out. It sounds very clean at those frequencies.
I liked the idea of running the subs at 4ohms bridged on an a/b amp but I don't like that the US only has the 45hz base boost option. Again I do like the Q bass. All in all I just want to try something different but I don't think this is the right option. Just to let you know I am running CDT es comps with the upstage super tweets. Also running 4" comps in the back for rear fill. I'm running an eclipse HU 8v. CDT SQA 4100 for mids. All in a Chevy Silverado Z71 extended cab with all doors fully mated. If and when I do something different it will probably be have to be used but any idea's or other suggestions would be appreciated.

[Recover]

Originally Posted by DJNUBZ

The answer is that it depends. If you are looking for better sound you should be looking elsewhere, what is your front stage? What head unit do you have? Are you running a processor? How well tuned is your vehicle?

Just to let you know I am running CDT es comps with the upstage super tweets. Also running 4" comps in the back for rear fill. I'm running an eclipse HU 8v. CDT SQA 4100 for mids. All in a Chevy Silverado Z71 extended cab with all doors fully mated. If and when I do something different it will probably have to be used but any idea's or other suggestions would be appreciated.

[Recover]

By the way thank you for your comments I posted this in 3 other forums and you all are the only one's to respond!

[DJNUBZ]

Which eclipse are you running? Are you running everything active? does it have time alignment?

[Recover]

Originally Posted by DJNUBZ

Which eclipse are you running? Are you running everything active? does it have time alignment?

Eclipse CD5000. It does have some preset time aligniment and no I am not running active.

[Rabbi]

odd seing people still running IDQ's besides myself, Ive been using two IDQ12V2's for the past 10 years and they are still sounding just as clean as ever..

Have you tried porting the idq's? Mine are in 1.35CF each, slot ported box's and they sound absolutely amazing, Without much SQ loss from sealed.
They pretty much beg to be ported.