What to do?
Hi guys, looking for advice on my setup. I have a O/S SS 700 running a set of Q line 6.5 Quarts up front thru the passive Xovers that came with the speakers. I have a couple of O/S PPI AM arts (2075/2150) and a PG EQ215X Xover/EQ Would I notice much difference if I were to go with the PPI/PG combo and activly Xover and BI amp? With the SS there just dosent seem to be the "drive" I would have expected. Thanks in advance
its hard to answer this question properly, but easier to guide you to a possible solution.
how are the speakers mounted? are they well sealed? that will make a HUGE difference in the 'drive', much more than doubling or quadroupling the power.
is there dampening on the doors? you might want to look into that also. adding the EQ in there and playing around with its equalisation might also have positive results... you may find you like some unexpected equalisation.
pretty much any of those amps should give you ample 'drive' if the install is appropriate...
how are the speakers mounted? are they well sealed? that will make a HUGE difference in the 'drive', much more than doubling or quadroupling the power.
is there dampening on the doors? you might want to look into that also. adding the EQ in there and playing around with its equalisation might also have positive results... you may find you like some unexpected equalisation.
pretty much any of those amps should give you ample 'drive' if the install is appropriate...
I have the speakers mounted to some 1/4" hardboard cut to the 6x9 shape of the stock speaker. I have about a 1x1 square foot of Brown Bread directly behind the speakers on the outer skin and about the same on the iner skin around the speakers. My plan for next month is to strip the doors down and put a full layer on both outer and inner skins in hopes of improvment.
This will also allow me to seal the door cavity.
This will also allow me to seal the door cavity.
There should be an immediate 3 dB gain if you dump the passives, but I'd agree that the install should be beefed up a bit. Hardboard is OK at low power, but adding a bit more weight to the baffle will help out a lot. I would pack as much Dum Dum onto that baffle as you can, if you have no room to use MDF. The idea is to reduce the amount of movement of the door.
Also make sure that the ring of the driver is sealed airtight to the door panel...most of the pressure wave of a speaker travels sideways if it can, and if it's allowed to travel inside the door panel, the panel will be flexing out of phase with the speaker. Again Dum Dum works wonders.
For a more solid and less messy approach, silicone, or hot glue can be used to build up a ring...just make sure to "paper" or "foil" the door panel so it can be removed after the seal hardens.
Also make sure that the ring of the driver is sealed airtight to the door panel...most of the pressure wave of a speaker travels sideways if it can, and if it's allowed to travel inside the door panel, the panel will be flexing out of phase with the speaker. Again Dum Dum works wonders.
For a more solid and less messy approach, silicone, or hot glue can be used to build up a ring...just make sure to "paper" or "foil" the door panel so it can be removed after the seal hardens.
Thanks for the tip Car Trek, I didnt realize the panels needed to be sealed to the rings. I ordered a 70sq foot roll of Brown Bread from the local shop and hope to see it by next week. That should get me thru the front and back doors anyway and we will see what happens after that.


