that was a great detailed reply dave, thank you!!!! )
i'll be emailing you
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that was a great detailed reply dave, thank you!!!! )
i'll be emailing you
Hey Dave, I noticed the Y-Axis "dB" units begin at different points. Is there a reason for this?
Oh, and are both of these speakers being fed the same amount of power?
I'm really curious about the 340 tweeter, I'd love to compare it to the one on my 170s.
~Nick
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Hi Nicholas,Originally Posted by Nicholas Mosher
Excellent questions... You will notice on the graphs that the dB "scale" is the same... The amount of power fed to each speaker doesn't matter as this graph is time based and the results are normalized. No matter how much power I feed the speaker (up until compression begins) the results would be the same. The measurement equipment will automatically set the range of the dB axis so that the fundamental (the initial response) will fit inside the window. The fundamental is the first "slice" you see at 0 ms. Keep in mind that the CMT-340 is about 3dB more efficient than the CBM-170.
Hope this helps.
I have been exchanging email with Davef and he suggested that I swap one of the mains with the center to see if my center is defective. Here is my last email.
Dear Dave,
I swapped one of the 340 mains with the center and
found that the sound is the same. I think that all
340s are okay and what I have been hearing as
sibilance is due to a bad recording or source and
excessive volume.
I like the 340s, but if my house is burning down given
a sophie's choice, I'll go back in and take the 170s
before the 340s since they are lighter.
I'll let you know if I find anything else. Thank you
for your help.
This cracked me up!! Rosa likes his 170's... and there's not a thing wrong with that!!Originally Posted by rosa
Randy
not to sound like a broken record, but i've had my 170 mains for about 3 months now and i remembered reading somewhere someone listened to 2-ch music and the soundstage is excellent that the voice was coming from the middle. so i turned off my 340c and my 200 surrounds, popped in norah jones last night and sure enough, her voice is coming smack down the middle where the 340 is!!! i pulled my wife from the other room and she usually doesn't have ears for these things, and i asked her where the sound was coming from, and she said the same thing...omg. outstanding performance and value, 2 thumbs way up dave f & james!!! the 170s still surprise me