Total bass suck out at 40hz


So I'm a little slow, but it occured to me today to see if there were test tones recordings on Tidal of Qobuz. Yes there are. I have a radio shack SPL meter so I went to work playing them to see what I had in my room. I was shocked to find a total lack of audible bass at 40hz. At first I thought they must have made an error in the recording. Then I went to a different set of test tones and wow same thing. I never dreamed something like that would take place. I have read a lot of discussions about bass peaks and nulls and always thought it would just be slightly less in volume at the null, not completely gone. So Am I imagining this and if not what do I do to remedy it. I am apparently missing a lot of music and never knew it. I am currently listening to my freshly refinished Yamaha NS 1000m speakers(just put them in the system Wednesday after work) with a Modwright KWI 200 integrated amp and a Lumin streamer/dac. I also have stereo Rythmik  F12 subs. Thanks, Allen.
mizike

Showing 4 responses by tomic601

Try a 30’ Blue Jeans cable - pretty good shields/ quality for not a lot of $$ the RF and other trash in the system will determine if you can get away w 30’
Three EZ yep natural roll off still yields some energy into the room and just as significant load on your amp
Vandertones ( a free download ) are calibrated for the RS analog meter - do yourself a favor and use those.

post the results, do one channel then the other, then combined.

note Vandertones are on typical room mode centers not octaves,

welcome to rare air an audiogon poster with and using an spl meter - u are light years ahead