gsb001
04-20-2010, 03:25 PM
Hook up question - DBX 120X Subharmonic Synthesizer
I have two JBL SR4735A’s and would like to add at least one and maybe two matching JBL MR918 sub woofers.
My room is 30’ x 40’.
I’m driving the SR4735A’s with JBL 6290 amp.
I have a Yamaha M2 amp I can use for the sub(s).
I would like to use my DBX 120X Subharmonic Synthesizer for both the full range SR4735A’s and the MR918 sub.
On the DBX 120X Subharmonic Synthesizer there is a switch for full range or high frequency only. Instructions say to turn full range off – so high frequency is going to mains (SR4735A) and low frequency is going to subs.
Output frequency split is as follows:
High frequency 120 HZ to 20 kHZ.
Low frequency 20 HZ to 120 HZ.
This is all fine and I think I understand the connections and results.
My question is, if I do turn off the full frequency and split the outputs between the SR4735A and MR918, won’t I be losing much of the lower end sound going to the SR4735A’s and turn them into mid and high only speakers?
For some reason this bothers me. I hate to give up the full range from the SR4735A’s. My goal was to keep what I currently have from the SR4735A’s, while adding the benefits of subs to them.
And finally, I like the idea of being able to control the level of output to the sub’s thru the DBX 120X Subharmonic Synthesizer front output control.
So my question is, how do I hook the SR4735A and MR918’s so I keep full range on the SR4635A’s while adding the sub’s and being able to control thru DBX 120X Subharmonic Synthesizer?
Do I need to add a separate cross over to my system in addition to the DBX 120X Subharmonic Synthesizer?
Thanks
Steve
I have two JBL SR4735A’s and would like to add at least one and maybe two matching JBL MR918 sub woofers.
My room is 30’ x 40’.
I’m driving the SR4735A’s with JBL 6290 amp.
I have a Yamaha M2 amp I can use for the sub(s).
I would like to use my DBX 120X Subharmonic Synthesizer for both the full range SR4735A’s and the MR918 sub.
On the DBX 120X Subharmonic Synthesizer there is a switch for full range or high frequency only. Instructions say to turn full range off – so high frequency is going to mains (SR4735A) and low frequency is going to subs.
Output frequency split is as follows:
High frequency 120 HZ to 20 kHZ.
Low frequency 20 HZ to 120 HZ.
This is all fine and I think I understand the connections and results.
My question is, if I do turn off the full frequency and split the outputs between the SR4735A and MR918, won’t I be losing much of the lower end sound going to the SR4735A’s and turn them into mid and high only speakers?
For some reason this bothers me. I hate to give up the full range from the SR4735A’s. My goal was to keep what I currently have from the SR4735A’s, while adding the benefits of subs to them.
And finally, I like the idea of being able to control the level of output to the sub’s thru the DBX 120X Subharmonic Synthesizer front output control.
So my question is, how do I hook the SR4735A and MR918’s so I keep full range on the SR4635A’s while adding the sub’s and being able to control thru DBX 120X Subharmonic Synthesizer?
Do I need to add a separate cross over to my system in addition to the DBX 120X Subharmonic Synthesizer?
Thanks
Steve