The small speakers I built for my home office are wonderful but bass shy. I am going to build 4 small subs using the drivers on the link. I will use the Behringer iNuke 3000DSP. So how should I wire 4 speakers into two channels?
Tang Band W5-1138SMF 5-1/4" Paper Cone Subwoofer Speaker
Tang Band W5-1138SMF 5-1/4" Paper Cone Subwoofer Speaker
Well. Only 2correct ways to do it in my view.
1. Wire 2 in series to produce an 8 oHm load to the 1st channel of the Inuke. And do the same for the other 2 subs on channel 2
To clarify + out from inuke to + on sub 1 then - out of sub 1 to + on sub 2 and out on - sub 2 back to - on inuke
2. bridge the inuke and wire sub one and 2 in series and 3 and 4 in series. To make 8 ohm and then parallel those up so the load is back to 4ohm.
This causes a bit of an issue though depending on where you position the subs and what other eq systems your using. The fact that you only have 1 gain control. Advantage is they are all at the same level. Disadvantage is that... well you may not want them all at the same gain level.
If you wire 2 subs in parallel there will be 2 issues I think.
1. 2 ohm load on inuke makes them run hot and sometimes unreliable. Plus reduces dampening factor and increases distortion
2 too much power to the subs.
Hope this helps
1. Wire 2 in series to produce an 8 oHm load to the 1st channel of the Inuke. And do the same for the other 2 subs on channel 2
To clarify + out from inuke to + on sub 1 then - out of sub 1 to + on sub 2 and out on - sub 2 back to - on inuke
2. bridge the inuke and wire sub one and 2 in series and 3 and 4 in series. To make 8 ohm and then parallel those up so the load is back to 4ohm.
This causes a bit of an issue though depending on where you position the subs and what other eq systems your using. The fact that you only have 1 gain control. Advantage is they are all at the same level. Disadvantage is that... well you may not want them all at the same gain level.
If you wire 2 subs in parallel there will be 2 issues I think.
1. 2 ohm load on inuke makes them run hot and sometimes unreliable. Plus reduces dampening factor and increases distortion
2 too much power to the subs.
Hope this helps
I would corner load all 4 subs using my method 1 wiring. Then set the gains with REW. use the inuke dsp to get rid of any nasty peaks in response and the run a final eq using the AV receiver to get the flattest response
The is quite a few 4 channel amps on the market. Maybe one of those and a stand alone DSP would work better.
The iNuke will be fine.
I loaded my NU3000DSP with 4x 15" subs on one side and played sine tones where the impedance was 1.4ohm. It got to the limiters and held for a few seconds before the fan sped up to jet engine levels. A little while after that, it went thermal and shut down.
Less than a minute later, it was back up and running.
I wouldn't worry at all about loading it with four of those drivers - they'll melt before the amp gives up.
Chris
I loaded my NU3000DSP with 4x 15" subs on one side and played sine tones where the impedance was 1.4ohm. It got to the limiters and held for a few seconds before the fan sped up to jet engine levels. A little while after that, it went thermal and shut down.
Less than a minute later, it was back up and running.
I wouldn't worry at all about loading it with four of those drivers - they'll melt before the amp gives up.
Chris
Yeah they are very small drivers to be fair. And running them like I said would be more than enough power for them.
It really all depends on what your goals are and what other kit you are running them with. E.g AVR.
You could use a normal amp and use a mini dsp 2x4 but the inuke are so competitively priced, I wouldn’t know what else to recommend for a one box solution with dsp. And they are light. A second hand QSC RMX amp with a mini dsp could work. But heavy compared.
The only thing I would say is depending
On position. Calibrating the phase could be troublesome.
I don’t know how much you know about phase but you can use a microphone and a piece of software like rew to measure to in room response and use the DSP to mess about with the phase settings and delay until your intervention is top notch.
I don’t really know how far you want to go with this.
It really all depends on what your goals are and what other kit you are running them with. E.g AVR.
You could use a normal amp and use a mini dsp 2x4 but the inuke are so competitively priced, I wouldn’t know what else to recommend for a one box solution with dsp. And they are light. A second hand QSC RMX amp with a mini dsp could work. But heavy compared.
The only thing I would say is depending
On position. Calibrating the phase could be troublesome.
I don’t know how much you know about phase but you can use a microphone and a piece of software like rew to measure to in room response and use the DSP to mess about with the phase settings and delay until your intervention is top notch.
I don’t really know how far you want to go with this.
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