Enclosure Size For 6.5" Woofer

[Umbra]

I first wouldnt put anything back there, but the best application I have heard was a fullrange not a componet set. The fullrange driver didnt have the pronounced tweeter or high end like a component set and you dont have to worry about wiring or passive xovers. Fullranges rolloff quicker and would be easier to mount in the door if you go that way. I would do something cheap back there because the focus will still be your front stage.
Celestion Neodymium 5" Full-Range Woofer 4 Ohm

I have also seen a person mount a sealed 6 x 9 box under the rear deck to seal the speaker and not have any affect from the subs. The time I saw it, the guys bolted and siliconed the box under the rear deck and mounted the speaker on top to the deck. I am sure if you look you can find a 6 inch box just like those 6 x 9 boxes. My local flea market sells them for 20 bucks.

This thread's over a month old. It was just bumped recently for some reason.

You offer some good ideas. I had not considered a fullrange speaker in the back, but I like the idea. I wanted to stick a box around them, but the bars that help hold the trunk cover open got in the way, so what I ended up doing is getting some foam speaker baffles (like these) and filled them loosely with fiberglass insulation, which improved the SQ. Then I mounted the speakers on an 3/4" MDF adapter I made (overkill thickness, but that's what I had lying around) so they fit into the 6x9 space and squished the foam under the MDF when I bolted everything down. I stuck the tweeters in the rear doors. I'd imagine it's a faux pas for a lot of audiophiles, but having rode in the back myself to test it, with the gain on the rear speakers turned down a bit it sounds pretty nice. The sound stage is still in front of you when you're in the back and they add a nice fill for the front listeners.

Anyway, that you both for the responses.

 

[argenis69 10+ year member]

This thread's over a month old. It was just bumped recently for some reason.
You offer some good ideas. I had not considered a fullrange speaker in the back, but I like the idea. I wanted to stick a box around them, but the bars that help hold the trunk cover open got in the way, so what I ended up doing is getting some foam speaker baffles (like these) and filled them loosely with fiberglass insulation, which improved the SQ. Then I mounted the speakers on an 3/4" MDF adapter I made (overkill thickness, but that's what I had lying around) so they fit into the 6x9 space and squished the foam under the MDF when I bolted everything down. I stuck the tweeters in the rear doors. I'd imagine it's a faux pas for a lot of audiophiles, but having rode in the back myself to test it, with the gain on the rear speakers turned down a bit it sounds pretty nice. The sound stage is still in front of you when you're in the back and they add a nice fill for the front listeners.

Anyway, that you both for the responses.

Did those foam baffles really improved the SQ on the 6.5 speakers?

 

[Umbra]

Did those foam baffles really improved the SQ on the 6.5 speakers?

That I don't know. I was referring to my addition of the fiberglass insulation; they sounded better with it than without.

I wasn't going to run them open in the rear deck because of the aforementioned issues with the subs. Having just held the speakers up free air and then cupping the baffle behind it to hear the difference there was definitely better bass bass response. I don't recall what happened to the higher frequencies, but I don't think the difference was drastic.

Having read up on the reviews prior to purchasing them, it seems people are divided. Some state it's improved SQ, some say it just muffles the speakers. I think it's dependent on the speakers used because different speakers do well in different environments. It's $8 for a pair, so if you're curious to see if they'd improve your setup, try them out. I bought them primarily for protection from sound pressure - they do that well. You could also cut them in half and use them like an awning to redirect rainwater away from door speakers.

 

[argenis69 10+ year member]

That I don't know. I was referring to my addition of the fiberglass insulation; they sounded better with it than without.
I wasn't going to run them open in the rear deck because of the aforementioned issues with the subs. Having just held the speakers up free air and then cupping the baffle behind it to hear the difference there was definitely better bass bass response. I don't recall what happened to the higher frequencies, but I don't think the difference was drastic.

Having read up on the reviews prior to purchasing them, it seems people are divided. Some state it's improved SQ, some say it just muffles the speakers. I think it's dependent on the speakers used because different speakers do well in different environments. It's $8 for a pair, so if you're curious to see if they'd improve your setup, try them out. I bought them primarily for protection from sound pressure - they do that well. You could also cut them in half and use them like an awning to redirect rainwater away from door speakers.

Thank you