View Full Version : Speaker help

06-17-11, 04:39 PM
Looking for suggestions for my '68 Deville.

I got a Pioneer - 50W x 4 MOSFET stereo and it has Maximum Watts per Channel of 50W x 4 and RMS Wattage 22W x 4. CD Signal to Noise Ratio of dB94dB. Voltage of Pre-Outs is 2.2.

I have read a lot about the technical aspects of stereos and matching the correct speakers and understand none of it. When it comes to electricity I am a caveman.

I would like a decent pair of 5.25 rounds for the kick panels and one 6 x 9 or similar for the rear seat grille.

Any suggestions would be greatly appreciated.

Not looking for some killer sound system just something to listen to the oldies with.

06-17-11, 05:10 PM
Generally what you want to do is get speakers that are slightly higher RMS wattage than your amplifier. Since it's only 22W, you'll need speakers that are about 25-35W. Most speakers these days are made to be used with an external 4-channel amplifier, so they are rated around 60-100W RMS.

The best I can find at Best Buy would be these 2:


http://www.bestbuy.com/site/Pioneer+-+5-1/4%22+2-Way+Car+Speakers+with+Polypropylene+Cones+%28Pair% 29/9454716.p?id=1218137491456&skuId=9454716

The 6x9s really aren't available in anything lower than 50W. The reason the aftermarket decks have such low power is because they're meant to run the factory speakers, which are very low wattage. If you're using it to run aftermarket speakers, you should technically get an external amp.

06-17-11, 06:43 PM
Damn I knew this would not be easy.

So I need an AMP?

How would this one work out?


Or this one?


I don't want to rattle my fillings, but I do want to hear the tunes well with the top down.

06-17-11, 06:50 PM
I'm not sure you NEED an amp. I've installed plenty of stereos with aftermarket speakers and it still sounds good. Even though the RMS of the radio may not be as high as the RMS on the speakers, it still came out sounding good and with no ill effects on the speakers to note.

I know with subwoofers you don't want to underpower them because that can damage them, but with the low wattage of normal car speakers I don't think you'll damage them. The only thing I can tell you is try it out. If the speakers don't sound good without the amp you can always add one in.

06-17-11, 08:44 PM
Yea, pretty much any aftermarket speaker is gonna sound decent at those ranges. The decision you need to make is are you gonna put a 2 way or 3 way 6x9 in the back. For my preferences, I would put 3 ways up front and 2 ways in the back. Which Pioneer did you get?

06-17-11, 09:11 PM
I have never ever EVER heard of a speaker actually blowing from being underpowered. I've heard people perpetuate that myth for almost as long as I can remember, but never actually heard of it happening. <_<

06-18-11, 08:25 AM
I worked in car stereo for many years at circuit city installing and selling it. You don't need an amp but it gets you better sound quality. You don't necessarily blow speakers by under-powering them but more by giving them power that is not very clean which usually comes from under-powering them if that makes sense. I am not sure about the one speaker in the rear as all modern decks use a 4+ speaker configuration. You might have to wire it to only one side and lose stereo sound. As for the speakers you want go into anyplace that sells car audio and listen to them on display and see which ones you like the most. I personally have stuck with the Polk DB series. They are hard to find but they are not overpriced and one of the highest rated speakers in their class. They will run off your deck despite the high peak power ratings as I have a set running off my pioneer radio and I have sold thousands upon thousands of them to unamplified radios. In my opinion and the opinion of most of the customers I showed them too their sound quality could not be beaten except by speakers that carried a price tag of at least 2 or 3 times that of their original $149.

http://cgi.ebay.com/Polk-Audio-db521-Speakers-High-Performance-Speakers-_W0QQcmdZViewItemQQhashZitem43a7c39065QQitemZ29057 7420389QQptZCarQ5fSpeakers

cadillac kevin
06-19-11, 12:03 AM
^@ YMP
I have a set of 4x6 polk DB's in my lesabre (dash) the sound is incredible for both the small speaker size and the price. they could charge twice as much for the quality of the sound they put out. I imagine the 6x9's would sound just as good if not better.

06-19-11, 11:08 AM
the 6X9s sound 5x better than the 4X6. I used to have a set of the 4x6s from my blazer but I sold them.... sucks because I wish I had them for my caddy. By far the best sounding 4x6 speaker I have seen that didn't cost an arm and a leg. But then again all of the polk db series sounded <3.

06-19-11, 10:03 PM
Custom Autosound has dual voice coil speakers to replace the original front and rear mono speakers in many old Caddys. This would allow you to get a stereo application. I may be in the market for a couple once I get to working on the sound system. The dual voice coil speakers are labeled as Model 3001. I can't post a link (less than 5 posts) so you'll have to do a search to get the link.

06-19-11, 10:44 PM
Nice, that sounds like a good option. Never thought of running a DVC to get stereo sound.

06-20-11, 01:23 PM
you will still get mono sound out of the DVC speaker because if you put two separate signals to the one speaker it will distort and possibly damage it. Better off just setting the stereo to Mono output if you only have the one rear speaker