TL,DR: I've just installed some 4" woofers and tweeters in a pre-existing DIY sub box to give me the capability to go full(er) range. Currently they all share a chamber and as such the 4" woofers are basically passive radiators for the sub.
How bad is this? Obviously it's not ideal- am I at risk of blowing the amp driving the woofers as the speakers generate their own voltage?
Will the tweeters need their own enclosure too?
More details:
Hello, a really basic question but according to my use of the search function I'm the first person dumb enough to do this! Hooray!
I built a sub a little while ago; nothing special, simple port, 500w, 12" driver.
That got used for a couple of years, then a living room reshuffle made it redundant. Then I realised I could squeeze some mids and tweeters in the same box. A bit of cleverness on my end should mean I could have a 2 amp setup so I could run it sub only or full range; obviously with significant compromises because the tweeters would be at knee height.
Nonetheless this is more of a "because I can" than an attempt at quality sound equipment- so I ordered a TDA7498, scavenged a PSU, and a pair of broken speakers provided me with the rest of the drivers. I've just done an install of the woofers (not connected to amp yet!) and they're actually passive radiators due to sharing the enclosure.
What are the disadvantages of this? (I imagine there aren't any advantages!)
When I install the tweeters will these need their own enclosure too?
Thanks!
How bad is this? Obviously it's not ideal- am I at risk of blowing the amp driving the woofers as the speakers generate their own voltage?
Will the tweeters need their own enclosure too?
More details:
Hello, a really basic question but according to my use of the search function I'm the first person dumb enough to do this! Hooray!
I built a sub a little while ago; nothing special, simple port, 500w, 12" driver.
That got used for a couple of years, then a living room reshuffle made it redundant. Then I realised I could squeeze some mids and tweeters in the same box. A bit of cleverness on my end should mean I could have a 2 amp setup so I could run it sub only or full range; obviously with significant compromises because the tweeters would be at knee height.
Nonetheless this is more of a "because I can" than an attempt at quality sound equipment- so I ordered a TDA7498, scavenged a PSU, and a pair of broken speakers provided me with the rest of the drivers. I've just done an install of the woofers (not connected to amp yet!) and they're actually passive radiators due to sharing the enclosure.
What are the disadvantages of this? (I imagine there aren't any advantages!)
When I install the tweeters will these need their own enclosure too?
Thanks!
No, you are not the first person to do that.
As a matter of fact, there was thread recently here about two different speakers sharing the same box...I am not going to bother looking for it.
What do you want to know really? You already done and use it that way, so?
Woofer will move midrange, how much depend on spl. (Tweeter is likely closed back, so not affected.) Will you hear it? Will your amp notice?
Obviously you do not care about sound quality.
As a matter of fact, there was thread recently here about two different speakers sharing the same box...I am not going to bother looking for it.
What do you want to know really? You already done and use it that way, so?
Woofer will move midrange, how much depend on spl. (Tweeter is likely closed back, so not affected.) Will you hear it? Will your amp notice?
Obviously you do not care about sound quality.
I haven't used it in this configuration yet other than some very basic testing- I was too surprised at how much the woofer moved. I don't want to damage the woofer with overexcursion, or the amp with back EMF. Due to the box construction it would be a bit of a pain to box in the woofer.
Thanks for the knowledge about the tweeters.
Thanks for the knowledge about the tweeters.