Hi Blair,
The only thing to be concerned about is if the centre pole is vented for cooling purposes. If the back of the magnet assembly has a screen / hole, then it is vented. Then removing the dustcap will reduce the air being pushed past the coil.
If the pole is not vented, the air behind the cap only goes into the magnet structure, not the cabinet. It's better to relieve the cone of that pressure.
I haven't seen a vented mid, but that doesn't they don't exist.
We usually talk about the top end dispersion and clarity. The mids get a lift. Not louder, more detail. Play with some cheap drivers first.
Most of all have fun,
Geoff
The only thing to be concerned about is if the centre pole is vented for cooling purposes. If the back of the magnet assembly has a screen / hole, then it is vented. Then removing the dustcap will reduce the air being pushed past the coil.
If the pole is not vented, the air behind the cap only goes into the magnet structure, not the cabinet. It's better to relieve the cone of that pressure.
I haven't seen a vented mid, but that doesn't they don't exist.
We usually talk about the top end dispersion and clarity. The mids get a lift. Not louder, more detail. Play with some cheap drivers first.
Most of all have fun,
Geoff
Yeah Dave, saves on bandwidth too. Thanks for doing the overlay, makes it easy to see what's happening.
This is the FR of the hotted up 61/2 panasonics. Remember the RS SPL meter takes a dive @18dB/oct above 10K. These are on small OBs 300 wide, 460mm high, with tapered wings. Haven't resolved the dip at 1K.
It's not the plug. Probably small baffle.
This is the FR of the hotted up 61/2 panasonics. Remember the RS SPL meter takes a dive @18dB/oct above 10K. These are on small OBs 300 wide, 460mm high, with tapered wings. Haven't resolved the dip at 1K.
It's not the plug. Probably small baffle.
Attachments
Neither the mids or the bass in the 753's have a vent on them (they are the same driver in fact)
Planet 10.
Have any of your customers done this mod on mission or similar drivers? I would be interested if you have had feedbacK. I have asked advice on a sperate thread here, but the advice from a couple of people is that it is too risky. (especially with 8 drivers to ruin)
I'm a way off this mod, I have some crossover parts to do first. But I would be interested in your opinion while this thread is hot?
Blair
Planet 10.
Have any of your customers done this mod on mission or similar drivers? I would be interested if you have had feedbacK. I have asked advice on a sperate thread here, but the advice from a couple of people is that it is too risky. (especially with 8 drivers to ruin)
I'm a way off this mod, I have some crossover parts to do first. But I would be interested in your opinion while this thread is hot?
Blair
planet10 said:
Mission thread
The arrangement on them is 2 mid + 2 woofers. The first post on the thread has a crossover diagram.
The 753 is a 2.5 way speaker, with four (I think 8') drivers. They are made from a doped paper cone, the pair of mids are in a sealed section of the speaker, the woofers are in a lower ported enclosure. I will search out a picture for you when I get away from work.
I am at my gf's tonight, but I can take any pictures that you might need tomorrow night.
Regards
Blair
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