Originally Posted by Bill Fitzmaurice
Originally Posted by DaJoJo
i was considering making ur DIY tuba HT sub but i want a 24" woofer in it, not sure if this will work, perhaps now u here u can tell me if its possible.
its this one http://stereointegrity.com/index.php?id=61
No. There's nothing to be gained by using larger than a fifteen inch driver in a folded horn sub woofer. OTOH there's much to be lost, as the low frequency extension of a horn is determined by its length. If the horn must be made shorter to allow a larger driver to fit into the cabinet you lose low frequency extension.
i just wondered if the wire has less resistance then the metal jumpers.
It does. Copper versus tin plated steel might have a fifteenth the resistance. But if the tin plated steel has a resistance of 1/100 ohm it's of no consequence.
mm yeah that's what i was afraid off. the bigger driver will need another horn to perform well. i wonder what difference would it make to have a 15" with your tuba or a 24" with a shorter horn cabinet. i guess its a little overkill having either of those but i like to have it anyway so it won't need much watts and can be driven by less beefy amp. the 24" needing a shorter horn will also save space but perhaps has somewhat more trouble to play the higher tone part better then the 15" . there's some balance in things somewhere, im sure you had have a long thought and endless calculations to come up with the tuba&15"
the metal jumpers also have coating of some sort alloy, but indeed for that short length it probably won't make a hearable difference. i replace them anyways coz i have a lot of metal stuff here and it prevents shortcuts by accident (cat likes walking around behind the speakers), which is the main reason for me. once again thnx for ur expert view and time.