I just moved into a new place and set up my HT room, I am not satisfied with the output I am getting from my current sub which is a Klipsch RW-12d. I want to build a new sub most likely using the Sound Splinter RL-P18
I do not have an amp or drivers currently so I need advice on what to buy for the amp. I considered using an ep2500 for the sub but I have no idea what sort of active crossover I would need. I think I may be able to use the sub out built in crossover in my Onkyo 805. (can be set between 80 and 120hz).
My current equipment is an Onkyo sr805 receiver, all Klipsch reference speakers RF82 up front, RF 52 in the rear and an older model KLF-C7 center.
The room is about 13x18 when the blackout curtain is closed and if that is not closed the room is open to the rest of the basement.
I want a loud but deep sound from the sub, should be able to feel them strongly during good actions. The room is mostly all concrete and I still need to try to treat the walls somehow.
Here are some pictures so please give any advice that might help me. Thanks
back of the room curtains partially open to rest of room. They close all the way though and black everything out.
Here is what I am planning so far. I would like to position it in the front of the room under the screen.
72" Wide
23" Tall
23" Deep
Made of 3/4" MDF with corner and cross bracing.
The port would be a slot port along the bottom that would be 21.5" wide on the inside (23" deep - 1.5" for MDF wall themselves) and 5.5" tall while being 59.89" deep. This will give me a tune of right around 16hz. Obviously the EP2500 will have more than enough power for this sub, but it allows me to build a second in the future if so desired.
The internal volume should be around 18 cubic feet after the port and sub.
Here are some rough sketches of my current plan.
If my Winisd is right, I should not have any port noise with around 50 ft/s peak at 14hz, I should be able to reach high spl and not bottom out. I have included the Winisd file as an attachment for anyone who cares to see the plan. This is not a final decision but a strong possibility. I do not know if I need a crossover besides my Onkyo because I would not have a subsonic filter to the best of my knowledge.
Specifically looking for pointers on:
-The Box design
-The Amp
-Built in crossover on RX going to be ok?
-Subsonic filter needed?
-Port issues?
-where to brace that box?
Thanks in advance for any help, I am new to HTS and was suggested by an AVS member that this is the place for DYI projects. Thanks!
I do not have an amp or drivers currently so I need advice on what to buy for the amp. I considered using an ep2500 for the sub but I have no idea what sort of active crossover I would need. I think I may be able to use the sub out built in crossover in my Onkyo 805. (can be set between 80 and 120hz).
My current equipment is an Onkyo sr805 receiver, all Klipsch reference speakers RF82 up front, RF 52 in the rear and an older model KLF-C7 center.
The room is about 13x18 when the blackout curtain is closed and if that is not closed the room is open to the rest of the basement.
I want a loud but deep sound from the sub, should be able to feel them strongly during good actions. The room is mostly all concrete and I still need to try to treat the walls somehow.
Here are some pictures so please give any advice that might help me. Thanks



back of the room curtains partially open to rest of room. They close all the way though and black everything out.

Here is what I am planning so far. I would like to position it in the front of the room under the screen.
72" Wide
23" Tall
23" Deep
Made of 3/4" MDF with corner and cross bracing.
The port would be a slot port along the bottom that would be 21.5" wide on the inside (23" deep - 1.5" for MDF wall themselves) and 5.5" tall while being 59.89" deep. This will give me a tune of right around 16hz. Obviously the EP2500 will have more than enough power for this sub, but it allows me to build a second in the future if so desired.
The internal volume should be around 18 cubic feet after the port and sub.
Here are some rough sketches of my current plan.


If my Winisd is right, I should not have any port noise with around 50 ft/s peak at 14hz, I should be able to reach high spl and not bottom out. I have included the Winisd file as an attachment for anyone who cares to see the plan. This is not a final decision but a strong possibility. I do not know if I need a crossover besides my Onkyo because I would not have a subsonic filter to the best of my knowledge.
Specifically looking for pointers on:
-The Box design
-The Amp
-Built in crossover on RX going to be ok?
-Subsonic filter needed?
-Port issues?
-where to brace that box?
Thanks in advance for any help, I am new to HTS and was suggested by an AVS member that this is the place for DYI projects. Thanks!
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