Richard_s
Second Unit
- Joined
- Nov 25, 2000
- Messages
- 267
Sorry All I know I read this in a post here just can't seem to find it.
I have the SA-wm40, Polyfilled (approx 18 oz - port left unobstructed), Placed on top of Oak platform with spikes, 40# barbell weight with felt pads on it place on top of case.
I am interested in if even with these mods the subwoofer is going low enough to use for the LFE/Bass for HT. Not the "feel" but for the sound (loud explosions, gunfire etc). I never felt the Sa-wm40 was capable of "shaking the room".
Right now as best I can tell using the AVIA sweep test I am -3db at 28hz-29hz definitely no booming. Maybe with some placement I can get it lower but given my room this may not be possible. Is this low enough for the frequency band used for the LFE/Bass effects.
I also set my system at reference level and put on some music with heavy base and cranked up the subwoofer until my radioshack SPL meter read 110db (seemed boomy but I guess in this kind of test this is expected) and it appeared to handle this just fine (did not go to 121db just too loud OK for quick peaks maybe). I also left my Subwoofer set properly and cranked up the amplifier to 100db stereo only mode(JBL n26 + Sa-wm40) seemed clear and crisp was not aware of any distortion or booming.
Can't find the Newbie thread/manual that was being worked on is that still around I wanted to read it through again
I have the SA-wm40, Polyfilled (approx 18 oz - port left unobstructed), Placed on top of Oak platform with spikes, 40# barbell weight with felt pads on it place on top of case.
I am interested in if even with these mods the subwoofer is going low enough to use for the LFE/Bass for HT. Not the "feel" but for the sound (loud explosions, gunfire etc). I never felt the Sa-wm40 was capable of "shaking the room".
Right now as best I can tell using the AVIA sweep test I am -3db at 28hz-29hz definitely no booming. Maybe with some placement I can get it lower but given my room this may not be possible. Is this low enough for the frequency band used for the LFE/Bass effects.
I also set my system at reference level and put on some music with heavy base and cranked up the subwoofer until my radioshack SPL meter read 110db (seemed boomy but I guess in this kind of test this is expected) and it appeared to handle this just fine (did not go to 121db just too loud OK for quick peaks maybe). I also left my Subwoofer set properly and cranked up the amplifier to 100db stereo only mode(JBL n26 + Sa-wm40) seemed clear and crisp was not aware of any distortion or booming.
Can't find the Newbie thread/manual that was being worked on is that still around I wanted to read it through again