incorporating dual mids in a 2-way system
I have a unique set of circumstances and an interesting opportunity. But I'm not sure whether this idea will work, and am looking for some advice.
I have a Miata (relevant due to its unique environment -- lots of wind/road noise at speed). I currently have a 2-way front component system (door mounted, actively crossed) and have recently obtained an extra set of midbass drivers. I am thinking of using the second set of mids in the doors to boost midbass output. FYI: an 8" sub has been mounted behind the seats in a small enclosure, ported into the back of the driver's seat.
So I will have 5 amp channels -- tweeters (L+R), sub, and mids (L+R). Each pair of mids will be run from a single amp channel. Yes I could add a separate amp for the tweeters, but I'd like to avoid this if possible.
Questions:
1) it is inevitable that the extra set of mids will cause imaging/staging problems (the single mid is currently crossed at 80Hz[hp] & 2kHz[lp])?
2) can I get away with installing the second mid further back (toward the seat occupant) in each door -- say 15" back from the first mid (the first is installed in the factory location in the bottom front corner of the door)
3) given that the two mids (if both were installed) would be wired in parallel (3.2ohms each, amp is a Diamond D7 4-ch which is 1-ohm stable and should be able to handle the current demand), could I make the second mid a true midbass by installing an inductor in series with the second driver to roll-off higher frequencies just for that driver?
Has anyone heard/tried a twin midbass system (perhaps in a 3-way configuration)?
Thanks.
Sean
[ June 14, 2005, 02:32 PM: Message edited by: sac ]
I have a Miata (relevant due to its unique environment -- lots of wind/road noise at speed). I currently have a 2-way front component system (door mounted, actively crossed) and have recently obtained an extra set of midbass drivers. I am thinking of using the second set of mids in the doors to boost midbass output. FYI: an 8" sub has been mounted behind the seats in a small enclosure, ported into the back of the driver's seat.
So I will have 5 amp channels -- tweeters (L+R), sub, and mids (L+R). Each pair of mids will be run from a single amp channel. Yes I could add a separate amp for the tweeters, but I'd like to avoid this if possible.
Questions:
1) it is inevitable that the extra set of mids will cause imaging/staging problems (the single mid is currently crossed at 80Hz[hp] & 2kHz[lp])?
2) can I get away with installing the second mid further back (toward the seat occupant) in each door -- say 15" back from the first mid (the first is installed in the factory location in the bottom front corner of the door)
3) given that the two mids (if both were installed) would be wired in parallel (3.2ohms each, amp is a Diamond D7 4-ch which is 1-ohm stable and should be able to handle the current demand), could I make the second mid a true midbass by installing an inductor in series with the second driver to roll-off higher frequencies just for that driver?
Has anyone heard/tried a twin midbass system (perhaps in a 3-way configuration)?
Thanks.
Sean
[ June 14, 2005, 02:32 PM: Message edited by: sac ]
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