Do you mean quality or quantity?
If you just want lots of boomy bass, put the speakers right into the corners.
Quality is a different matter, and depends on the type of speaker, particular amplifier, and the source material.
By the way, my system are :
Mordaunt short Mezzo 2
Canare GC-6 interconnect
Belden studio 814 speaker cable
IMO its unlikely to be attributed to the carpet/curtains etc, this will have a small effect on low bass, but soft furnishings are more applicable affecting midrange and treble reflections.
Id say your current listening position was in a 'null' spot, and sometimes the only option is to change the position of the speakers and/or listening position. You say if you move forward then you can hear the bass, which to me answers the question.
You could change to bigger/more bass prominent speakers, and/or maybe add a sub to help fill out the bottom end, but i'd experiment with positioning first.
If you really want to know whats going on in the room, then head off to the sub forum for advice on REW, how to use it, and what to look for. Its a free software program that analyzes your room, Room Equalization Wizard.
That would be my advice before you start spending any money at all.
Also, just check that your speaker wiring is correct, and nothing is out of polarity/phase etc. You never know.....
I have a CA 340a + 340c + CA S30 speakers. I thought the bass was not too powerful. So today I got a demo of Marantz PM6003 + CD6003 + Wharfedale 10.1.
When compared to my CA 340a, I thought the bass was weak. Just got back home from the demo and replayed all the CDs I played at the demo and was surprised that the bass from the 340a was adequate (one has to take into account that this is a £350 system).
I reckon it was due to the fact that the demo room was small. On the other hand, the PM6003 may not be great shakes.
Can you confirm the listening area and the speakers are in an equilateral triangle with the length of each side being at least 8 ft. With my current system I first tried at 6 ft with the listening area 8 ft away when I moved my speakers apart 2ft there was a significant increase in bass. In addition, if you have rear bass ports, make sure they are placed at a good distance from the wall (say 1.5 ft).
Also try three angles for the speakers.
1. Where speakers' imaginary lines intersect immediately behind listener.
2. Where speakers' imaginary lines intersect exactly where the listener sits.
3. Where speakers' imaginary lines intersect immediately in front of the listener.
StormRider, don't mean to sound like a jerk, but that seems to be an awefull lot of curtains. Are you sure you haven't exaggerated a little?
Can you explain why three walls are virtually covered by curtain, and tell us what is behind the curtains? Again, I'm not trying to be a jerk. I'm asking because it matters.
Also, you've got some decent speakers, and a really good amp. Are you sure you haven't simply traded heavy droning one-note bass on your old system, for clarity, definition, and transparency on the new system?
Don't ask yourself if you can hear bass, ask yourself if you can hear bass guitar? That is a subtle but important distinction.
My speakers don't seem to have much bass, but if I turn the bass control up, it becomes overwhelming quickly. So the bass is there, but the droning distortion most of us associate with bass is gone.
The questions about carpets and curtains has to do with reflections in the room. If sound is being reflected, then reflected sound is colliding with direct sound and creating peaks and valleys in the sound. If you happen to be sitting in a valley, then there will be virtually no bass.
So, get up and move around the room. Move left and right, also move up and down, because the peaks and valleys can appear between the floor and ceiling.
Also, move forward and back, as well as near the side walls. Are there any places where you sense the bass peaks and valleys.
Next, are the speakers positioned as shown in the drawing, facing straight forward? If straight forward, try turning them inward slightly, more toward the listening position. That will alter the reflections in the room.
There is something call 'boundary re-enforcement'. Meaning as you move the speaker toward a boundary wall, the bass tends to pick up. Move it toward two boundary walls, side and back, and it picks up even more. Though that is not alway a good thing.
Keeping a reasonable space behind the speakers, move the farther to the side and nearer the side walls. Then cant or turn them inward slightly, again, more toward the listening position. See if that smooths out the bass.
I see no reason to think that the Mezzo 2 is anything less than a great speaker for the money. Any complaints I've heard about them have all been related to changes in the tweeter over the Aviano. Some prefer the sound of the Mezzo, though others prefer the sound of the Aviano. So, that's more a preference than a complaint.
But, I've never heard anyone criticize the bass in any of the Mordaunt Short speakers when woofer size and price are taken into consideration.
Your have a 6.5" woofer which is above average for a bookshelf speaker, and have a response down to 48hz, which again is good for a bookshelf speaker. Which is why we are all asking questions about the room, and the position of the speakers.
These many not blow the room off the place, but they should be well balance detailed speakers. And they are far above average in the Mordaunt Product line.
As always, just an opinion.
Simple answer, get a subwoofer with high level connections
Just normal 24 inch height speaker stand. Can the quality of the stand plays a part too?
Have a read through the above. Some interesting opinions.
interesting though, but is it worth to spend about 20-30% of the speaker price for a good stand, something like atacama stand?
There is not much more that I can say, other than what I have already said.
But I confess this is an intriguing problem. With the curtains all round, you seem to have gone far above what most people do to control room acoustic. The curtains and foam aren't quite bass traps, but they should make the room acoustically soft and warm. That should be great for the quality of the bass.
You seem to be doing everything right, so I'm some what baffled by why it is not working.
The only thing I can think of is, go back to basics.
First, make absolutely sure that your speakers are wired properly. Confirm beyond any shadow of a doubt that for both speaker the Amp(+) goes to the speaker(+). If you are bi-wiring, forget about that for now, and use standard single pair wire. The bi-wiring adds an unnecessary level of complication at this point.
This is important, too many people assume they did it right, and simply take a quick glance. I'm asking you to absolutely confirm the correctness of the speaker wiring. Because, if you've made a mistake there, that throws everything off.
You mentioned a Sub, was that an experiment, or do you have a sub available all the time? If you have a sub connected, you might want to consider the Phase control on the Sub. If the Sub in in front, the phase needs to be ZERO, and if the sub is in the rear behind you, the phase need to be 180.
Again, I confess that I'm confused, you seem to have done everything right. So, I can't understand why are you aren't getting noticeable results.
I already have a sub and try connect it before, but then the sound just not right to me, maybe different speaker driver which cant integrate well together? I am using mordaunt short avant 309 sub.
Another point is, the sub needs to be place behind the listening area at the corner, with this only i can hear the bass. If I were to place the sub beside the speaker, the bass is also weak.