Yes, I see your point. Really, it boils down to first selecting drivers that play well together based on whatever set of criteria you determine are your base requirements. For instance, I needed high efficiency and had a large venue to fill (large open house).
What I was trying to get at was that in larger venues you tend to want either larger drivers or more drivers or both to fill the room.
In a smaller room large cabinets may be a real problem as far as finding room for them, but they will play nicely, too, if positioned correctly.
Agree with all of that.
I only commented in case anyone read your post and assumed a large driver based system is not appropriate for a smaller room. I have 4 JBL2225 based surrounds for my 1850cu ft room coming.
thanks for the input guys!
I think 30-40Hz will be OK for me upon your recommendations.
I do have a large open plan house so big drivers are not excessive in my case, however, 15" is on the radar now rather than the 21"
I think 30-40Hz will be OK for me upon your recommendations.
I do have a large open plan house so big drivers are not excessive in my case, however, 15" is on the radar now rather than the 21"
Erin I'm sorry to hear that, I was hoping some-one would buy a pair of the Exodus 21s ( no longer I believe) and give us all feedback on how the monsters sounded
The reason I was interested in the 21" was because I have heard the EAW SB2001 subwoofer using two 21" in each cabinet. These subs are really fast and detailed and give great tone and clarity, and easily do 3 octaves. I just wondered if they would be too much at home. I guess in the end it depends upon the size of your room.
I ended up getting some speakers with two 15" in each cabinet. IMO not too big for my room, but I wish the cabinet was thicker. I also wish my room was not so reverberant at about 200Hz. Now Ive got the problem of excessive bass giving too much "boom" with certain recordings. I'm not into using equalisers at this point in my life. (not knocking them) so, I have to either put up with it or treat the room. Treating the room is virtually impossible, so I'm putting up with it.
Still, the big strong deep bass is pretty cool and for the most part I'm enjoying it.
I ended up getting some speakers with two 15" in each cabinet. IMO not too big for my room, but I wish the cabinet was thicker. I also wish my room was not so reverberant at about 200Hz. Now Ive got the problem of excessive bass giving too much "boom" with certain recordings. I'm not into using equalisers at this point in my life. (not knocking them) so, I have to either put up with it or treat the room. Treating the room is virtually impossible, so I'm putting up with it.
Still, the big strong deep bass is pretty cool and for the most part I'm enjoying it.
Hi,
Simple solution. Go down to your local stone merchant, the ones that offer natural and manmade stone for floors, cladding buildings and walls etc.
Get then to make you set of "side-cheeks" for the speakers in stone, glue them on the outside sidewalls, sounds better, looks better.
The remaining surfaces you can treat from the inside.
My most recent DIY Speaker was made from cheap generic but good looking boxes, to deal with the resonances 50mm MDF on the front and 25mm MDF all around leaves I added 20mm thick stone fillets on all inside surfaces...
It is rather a different animal now.
I should think a plat absorber for around 200Hz should be not that hard to make... So try.
Ciao T
Simple solution. Go down to your local stone merchant, the ones that offer natural and manmade stone for floors, cladding buildings and walls etc.
Get then to make you set of "side-cheeks" for the speakers in stone, glue them on the outside sidewalls, sounds better, looks better.
The remaining surfaces you can treat from the inside.
My most recent DIY Speaker was made from cheap generic but good looking boxes, to deal with the resonances 50mm MDF on the front and 25mm MDF all around leaves I added 20mm thick stone fillets on all inside surfaces...
It is rather a different animal now.
I should think a plat absorber for around 200Hz should be not that hard to make... So try.
Ciao T
That's not a room, that's a cupboard! Are you sure you're not thinking square feet, Al?
luxury!!! I lived in a 1325 cubic ft unit for 9 years, (15 sqaure meters, estimate 2.5M ceiling) "well technically a bedsit" that included the kitchenette and bathroom!
And I had my two 75L 3 ways in there as well 😉
Tony.
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Actually, the reason for the "stopped" pipes is to achieve the 32' open pipe's frequencies with only a physical 16' long pipe that is stopped. They both product the same exact frequencies and fundamentals.
The main reason for the stopped pipes is to conserve space in small pipe organ chambers. It's much easier to fit 16' pipes in a venue than 32' pipes. It has absolutely nothing to do with "avoiding structural damage" to the church, music hall, theater, etc, etc.
Hi,
That is a broom cupboard... Even in London. 😛
It may pass as bedroom in Hong Kong though. 😉
Heck, in east germany the state security police had bigger cells to lock you up in...! 😱
Ciao T
That is a broom cupboard... Even in London. 😛
It may pass as bedroom in Hong Kong though. 😉
Heck, in east germany the state security police had bigger cells to lock you up in...! 😱
Ciao T
Agreed.
A total aside, but just to put some numbers to such things (because it overlaps with the day job):
In the UK new buildings are pressure-tested for airtightness; the test pressure is 50Pascals - because it makes the leakage maths easy - equivalent to 127dB SPL at DC applied across the whole envelope.
Absolute minimum imposed/ dynamic design loadings for facade elements, windows etc equate to min 160, upto c. 167dB SPL at DC, though obviously there is a dynamic component to windgusts also! (I'll spare you the gory details.) And floor loadings often considerably exceed these.
So not much risk of blowing up a building with a paper woofer 😀
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Bass traps in the corners may help, 200Hz isn't all that low, still two 15s in each box is nice.
Hi,
Well, I don't know.
A long time ago I used to, at times, maintain installed sound systems in east german studio's.
They usually used either freestanding monitors on stands or build in types.
On more of a few occasions of pulling out wooden cabinets out of their build-in niches we found not only dead mice and roaches, but also loads of loose bricks and essentially disintegrated walls...
So, maybe not blowing up buildings in one instant.
Over 20 Years, or even 200 Years?
Not my problems. When the walls fall apart, get the builders to fix it...
Ciao T
PS, the woofers that eroded the walls where paper cone, 8" or 12" with comparably high resonance frequencies too
Well, I don't know.
A long time ago I used to, at times, maintain installed sound systems in east german studio's.
They usually used either freestanding monitors on stands or build in types.
On more of a few occasions of pulling out wooden cabinets out of their build-in niches we found not only dead mice and roaches, but also loads of loose bricks and essentially disintegrated walls...
So, maybe not blowing up buildings in one instant.
Over 20 Years, or even 200 Years?
Not my problems. When the walls fall apart, get the builders to fix it...
Ciao T
PS, the woofers that eroded the walls where paper cone, 8" or 12" with comparably high resonance frequencies too
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I have a pair of Precision Devices PD2150's that I finally got the enclosures done for and just moved into my living room main system over the weekend. I don't have them integrated yet, just unplugged the JBL 18's and plugged the PD's in. No opinions or measurements yet but I can say they they are mean! They should be fun, if nothing else they will become shop subs.
PD2150 are nice woofers! 6" VC!
I am quite tempted myself by the PD2450. The cone is bigger but the ribs should prevent breakups somewhat. The impedance plots look good up to ~250Hz, same as the 2150.
What frequency range will you play them in?
I am quite tempted myself by the PD2450. The cone is bigger but the ribs should prevent breakups somewhat. The impedance plots look good up to ~250Hz, same as the 2150.
What frequency range will you play them in?
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