SenduB
Standard Member
I'm planning a dedicated AV room. 5.3x4.4x2.4m. Probably getting Martin Logan 15A speakers, which are electrostatic panels on top of active subwoofers that go down to 22Hz.
I want to know if I need to budget for and prepare wiring (electrical sockets, speaker cable outlets) for subs before constructing the room.
I've used REW simulator but my main issue is not knowing if my room will be considered "sealed", because that changes everything. The room will be sound-proofed as much as possible and not have windows, but if I put in any kind of small vent for fresh air, will that give me real-world measurements like the unsealed simulations?
Just Front L/R speakers:
Without subs could you EQ this flat down to 20Hz by pulling everything above 55dB down to 55dB? And then raise everything back up 20dB?
Is that just normal, no big problem for your standard AVR (I might be getting one with Dirac Live)? Does it mean your power amps then have to do an extra 20dB of output to get back to normal volume? And does that mean you'd need more powerful amps than you might otherwise have thought?
Same, but sealed room:
Yikes!
The best wall position for 1 sub was mid-rear wall:
Also EQable at 55dB.
The only 2 sub position I could find that was as good as or better than the above was 2 rear corners. All asymmetric options introduced a lot of seat-to-seat variation.
Still only EQable at 55dB.
Sealed room causes a null at about 25Hz:
I could find no positioning of 4 subs that was as good or better than the above options.
What would you pick amongst these?
I want to know if I need to budget for and prepare wiring (electrical sockets, speaker cable outlets) for subs before constructing the room.
I've used REW simulator but my main issue is not knowing if my room will be considered "sealed", because that changes everything. The room will be sound-proofed as much as possible and not have windows, but if I put in any kind of small vent for fresh air, will that give me real-world measurements like the unsealed simulations?
Just Front L/R speakers:
Without subs could you EQ this flat down to 20Hz by pulling everything above 55dB down to 55dB? And then raise everything back up 20dB?
Is that just normal, no big problem for your standard AVR (I might be getting one with Dirac Live)? Does it mean your power amps then have to do an extra 20dB of output to get back to normal volume? And does that mean you'd need more powerful amps than you might otherwise have thought?
Same, but sealed room:
Yikes!
The best wall position for 1 sub was mid-rear wall:
Also EQable at 55dB.
The only 2 sub position I could find that was as good as or better than the above was 2 rear corners. All asymmetric options introduced a lot of seat-to-seat variation.
Still only EQable at 55dB.
Sealed room causes a null at about 25Hz:
I could find no positioning of 4 subs that was as good or better than the above options.
What would you pick amongst these?