Hey everyone, I have been lurking on this forum for a while and thought it was time to post a bit about my first DIY project (and ask a few questions :) )
I have chosen a closed box subwoofer for simplicity and dual opposed to minimise enclosure vibrations should I fail a bit in the building part. It's made from an old bed and closet, not perfect but a lot thicker then MDF (33mm sides, top and bottom, 26 mm front and back, dual parallel 26mm bracing) and less heavy. Rabbet joints are used everywhere (makes the cutting less critical and every part is glued in 2 dimensions) The cutting was horrible since I didn't have acces to a table saw, so it needed a lot of shaving and sanding and it's going to need a healthy amount of filler before everything is done.
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The back of the subwoofer (bottom on the last 2 pictures) has a compartment to fit an inuke1000DSP, the hole in the bottom (front in pic 3) is for ventilation. Although I know the various different ways I could wire up the amp I just can't get my head around what would be the optimal way.
The way I see it, correct me if I'm wrong, there are 3 usefull ways of wiring up the 2 dual 8ohm voice coil drivers. The power I quote below is RMS/max power of the inuke1000 as found in the manual, I haven't found any power tests of the inuke1000 on the net.
1) Drivers and voice coils in parallel resulting in a 2 ohm load for which I can use 1 channel of the inuke to drive it at 380/530W
Pro: using only 1 channel for almost the same power
2) Drive the woofers separate (dual mono) with voice coils in parallel resulting in a 4 ohm load for which I can use 2channels of the inuke for 2x210/320W
Pro: maximises "max" power, more options to control room modes by the 2 spaced drivers using slightly different DSP settings on the 2 drivers or allows me to use only one driver in an enclosure twice the size (for the lullz)
3) Voice coils in series with drivers in parallel resulting in a 8 ohm load for which I can use the bridged inuke at 1x430/570W
Pro: maximises RMS power, highest damping factor.
The differences in power are small and I'll probably never use it that loud but it bothers me that I can't figure out an optimal way.
Are my assertions correct, am I missing something, is it just academic or will I be able to hear a difference between the 3 options?
I have chosen a closed box subwoofer for simplicity and dual opposed to minimise enclosure vibrations should I fail a bit in the building part. It's made from an old bed and closet, not perfect but a lot thicker then MDF (33mm sides, top and bottom, 26 mm front and back, dual parallel 26mm bracing) and less heavy. Rabbet joints are used everywhere (makes the cutting less critical and every part is glued in 2 dimensions) The cutting was horrible since I didn't have acces to a table saw, so it needed a lot of shaving and sanding and it's going to need a healthy amount of filler before everything is done.
The back of the subwoofer (bottom on the last 2 pictures) has a compartment to fit an inuke1000DSP, the hole in the bottom (front in pic 3) is for ventilation. Although I know the various different ways I could wire up the amp I just can't get my head around what would be the optimal way.
The way I see it, correct me if I'm wrong, there are 3 usefull ways of wiring up the 2 dual 8ohm voice coil drivers. The power I quote below is RMS/max power of the inuke1000 as found in the manual, I haven't found any power tests of the inuke1000 on the net.
1) Drivers and voice coils in parallel resulting in a 2 ohm load for which I can use 1 channel of the inuke to drive it at 380/530W
Pro: using only 1 channel for almost the same power
2) Drive the woofers separate (dual mono) with voice coils in parallel resulting in a 4 ohm load for which I can use 2channels of the inuke for 2x210/320W
Pro: maximises "max" power, more options to control room modes by the 2 spaced drivers using slightly different DSP settings on the 2 drivers or allows me to use only one driver in an enclosure twice the size (for the lullz)
3) Voice coils in series with drivers in parallel resulting in a 8 ohm load for which I can use the bridged inuke at 1x430/570W
Pro: maximises RMS power, highest damping factor.
The differences in power are small and I'll probably never use it that loud but it bothers me that I can't figure out an optimal way.
Are my assertions correct, am I missing something, is it just academic or will I be able to hear a difference between the 3 options?