Low frequencies

[Al ears]

Its not a phenomenon - you will get bass boundary reflections from all boundaries - this is what causes the variation in pressure for different freq in different parts of the room.

Such is the challenge to overcome this to achieve Good Bass.

If it happens then it is a phenomenon. What I was saying it is more obvious in certain rooms with certain speakers. In the majority of cases it will not be detrimental especially with speakers designed to work close to rear boundaries, not so ideal if placed close to corners though.

 

[Al ears]

Its not a phenomenon - you will get bass boundary reflections from all boundaries - this is what causes the variation in pressure for different freq in different parts of the room.

Such is the challenge to overcome this to achieve Good Bass.

If it happens then it is a phenomenon, check your dictionary. What I was saying it is more obvious in certain rooms with certain speakers. In the majority of cases it will not be detrimental especially with speakers designed to work close to rear boundaries, not so ideal if placed close to corners though.

 

[ellisdj]

Its not phemomenon its physics that is what I was saying - its inevitable that it will happen - bass is omnidirectional and as a result will interact with boundaries of the room.

There is nothing you can do to stop this

 

[Native_bon]

I don't know why people are so caught up in even detail of bass performance. Even a double bass musical instrument would sound different in defferent rooms when played & reference to where its play in the room. As far as the bass in not boomy or over bearing then that should be fine. If you want bass heard properly then just treat the room like a recording studio. Simples .

 

[ellisdj]

Even that is not enough - bass is the most essential part of audio playback that is why you make a big deal out of it.

Its the first thing that should be worked on and its the most obvious thing to have good and bad.

Luckily the human ear is poor at detecting differences so it doesnt have to be perfect - in saying that its the first thing I notice about a system.

However in reverse as we are so poor at detecting bass using the ear alone is not enough, not even a good ear

 

[Native_bon]

Even that is not enough - bass is the most essential part of audio playback that is why you make a big deal out of it.

Its the first thing that should be worked on and its the most obvious thing to have good and bad.

Luckily the human ear is poor at detecting differences so it doesnt have to be perfect - in saying that its the first thing I notice about a system.

However in reverse as we are so poor at detecting bass using the ear alone is not enough, not even a good ear

Yes I agree, get the bass right & almost everything else will fall in place. No speaker can do it all. There is always compromises to be made as regards making speakers, unless you want to spend some really silly amount of money. I like speakers with lots of bass but not at the expense of definition. Some speakers do acoustic instruments really well, but fails when it comes to deep subsonic bass & vice versa.

I just think most are obsessing too much over it. Again let I said if you really feel you need the best in bass performance treat the room acoustics.

 

[Cycleman]

i make triangle with 2,50m speaker distance and the same from the chair that i sit.

 

[BigH]

i make triangle with 2,50m speaker distance and the same from the chair that i sit.

Should be ok then. Have you tried moving the speakers back towards the wall, try 1 foot nearer and see the difference.

 

[Native_bon]

I listened to the floor standing version of these speakers, and to say the list I did not listen more than 3mins & asked that they be removed cause they just lacked bass. Also I found them to be lacking body in the mids. Again it all boils dwn to taste, was just not for me. If you have to move the speakers very close to the wall to get more bass, then this may also impair on midrange performance. Its sounding like these speakers are not to your liking. I would advice you still try to experiment with placement in room or at best change listening positions & rearranging hifi to different location in room if possible.

The other option is get a different pair of speakers. No cables or dac will make the speakers produce more bass to the extent you need it to.

 

[Cycleman]

well i have also the hpm 60 pioneer.......i think is much better. the only problem is that they haven't focus. I am very disappointed from the b&w speakers......

 

[BigH]

Probably best to audition some new speakers then.

 

[TomSawyer]

As almost always, I'm either being thick or...

ignore, I am being thick, 685s2 has front firing port - I'll get my coat.

 

[gasolin]

According to a danish review the nad amp doesn't have enought power in the depest bass

But generally enough power for B&W speakers

Try mabye the red og black audioquest dragon fly

 

[gasolin]

if i put from my amp the bass at 3 o clock i am ok.i don't like subwoofer style.i just a little bit more loud the bass.

maybe my system plays flat. Is a problem to have the bass in 3 o clock to the amp?! or is better from eq to make changes?! or something else?!

bass is max 8db at 100hz which is not that deep

 

[gasolin]

Hello to all.

Well i am confused about my system 2 years now.I catch myself to turn the bass from the amp to the maximum.I thing the problem is that i don't have so much lows.

That could be normal, due to the fact that the 685 is announced to have a low filter around 49hz +/-3dB. From experience, B&W has always over-enthusiastic spec sheets. They probably get around 60hz +/-3dB when mesured with a terrestrian DIN norm. 60hz is quite high, so not very optimal if you search a deep bass.

Frequency responce from the old 686 plenty of output down to 60-70hz and that is only from the small 686 http://www.hometheater.co.il/p-1.article05251.html

 

[Cycleman]

my old speakers (hpm 60) have 35hz to 25khz now with b&w i am in 52hz to 22khz....i think that i make wrong choose.

 

[gasolin]

It's a physical impossibility that you will get good bass from your b&w 685 s2 speakers.

A 6.5" driver in a small ported speaker cannot produce good bass.

He is saying he like the bass when he plays a cd so how can the bass be to small?

 

[NSA_watch_my_toilet]

According to a danish review the nad amp doesn't have enought power in the depest bass

..."depending on the loudspeaker you use"... (should be the right phrase of this danish review).

 

[gasolin]

According to a danish review the nad amp doesn't have enought power in the depest bass

..."depending on the loudspeaker you use"... (should be the right phrase of this danish review).

https://translate.google.dk/translate?sl=da&tl=en&js=y&prev=_t&hl=da&ie=UTF-8&u=http%3A%2F%2Felektronik.guide.dk%2FForst%25C3%25A6rker%2FHarman%2520Kardon%2FKvalitet%2FGodt%2520k%25C3%25B8b%2FHjemme%2FTest_af_NAD_C545BEE_HarmanKardon_HK_980_1682445&edit-text=

 

[Cycleman]

well i have also the hpm 60 pioneer.......i think is much better. the only problem is that they haven't focus. I am very disappointed from the b&w speakers......

what about that?!

 

[nopiano]

my old speakers (hpm 60) have 35hz to 25khz now with b&w i am in 52hz to 22khz....i think that i make wrong choose.

I'm afraid those numbers mean nothing without decibel limits....

 

[nopiano]

As almost always, I'm either being thick or...

ignore, I am being thick, 685s2 has front firing port - I'll get my coat.

But on your general point, Tom, regardless of front, rear, or no port, placing most speakers nearer the rear wall (the one behind the speaker) will boost the bass output. Hence the repeated advice above for the OP.

 

[Cycleman]

The B&w is in -6db....the other speaker one God knows...

 

[BigH]

Why did you buy them?

 

[BigH]

Why did you buy them?