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No bass in the Proac Response 3

I've just had the opportunity to buy a Proac Response 3 from a fellow agon just recently. One of the foam the 6.5" woofer was
torn ( with holes) so I already had it replaced with brand new foam. The treble improved quite a bit once I had the foam replace. The midrand is still the same and I have to say the Proac midrange is beautifull. I can sit and listen to female vocal (Krall, Elle, Cassandra) music all day. There is no sign of harsh or etch at all.

However, my problem now is that the bass is nowhere to be found when I play rock/pop. I do the regular Proac reccommended speaker placement of 2 feet away from the wall and the deep bass , mid bass are all but lost. If I moved the Proac very close to the wall then I get stronger bass, but now my image and everything else got all messed up. A simple analogy would be like I don't feel the singer is standing in the rooming sing anymore once I move the speakers toward the wall. Everything is just so flat ( 2-d), but the bass is good.

The most simple weak link that I can see in my system is that maybe the Krell integrated is just not big enough to produce the kinda big bass that I used to. But another interesting thing to know is that before I got the R3, I also got a much smaller Proac supertower that produced bass twice as much as the R3; and the R3 is twice the size, but lacking in the lower freq department.

My system is following:
Krell KAV-300i (integrated amp)
Arcam DV-27 (CD player)
Sony DVD player + PS Audio UltraLink DAC
Proac R3 (Full range speaker)
ducchau

Showing 4 responses by jea48

jea48
2,944 posts
 
04-17-08: Prefab
Could you have reconnected the drivers out of phase? Try switching the polarity on one of the drivers

My thought also......

Ducchau, without having to remove the drivers again you can check for proper polarity using a 1.5 volt D cell battery.

* Pull the front grills from the speakers.
* Disconnect the speaker cable wires from the Amp.
* Take one speaker cable and hold the negative wire on the negative post of the battery. While watching the speaker driver cones of the speaker momentarily touch the positive wire of the speaker cable to the positive post of the battery.
If the polarity is correct each driver cone will move forward. If any cone pulls in instead of outward reverse the wire connections on that driver.
* Repeat process for other speaker.
jea48
2,944 posts
 
Ducchau, here is what ProAc says about filling the sand cavity......

Quote
"After removing the cover the cavity should be part filled with dry silver sand, then the listener is invited to add or subtract sand, which will tune the bass quality for his taste and room acoustics. As a general rule of thumb, a small amount of sand will give the bass more warmth, adding more sand to the cavity will give a dryer tighter quality, most people will find that half to two thirds full is optimum in most models."
>>>>>>>>>>>>>>>

Also, I assume you are using spikes on the speaker plynth.
.
jea48
2,944 posts
 
recheck and confirm the speakers are level and
not rocking.
Good advise but I would use the word plumb instead of the word level. The important thing here is to make sure the front of the speaker is plumb. Not sure this would have any effect on the bass directly but it sure will affect the treble, so I guess in a way it would affect the bass in the overall balance of things.

Run one CD player at a time.
If you have 2 going unplug the one you are not using.
Would you please explain your reasoning here. How would this affect the bass?

jea48
2,944 posts
 
Pepperdog,

Repair,
Millersound

New,
http://www.madisoundspeakerstore.com/approx-10-woofers/scanspeak-classic-25w/8565-00-10-woofer/
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