Ask BOMALABS, & get no BS answers (Bomalabs- C'mon down)

[arnoldc]

hi gk,

may i know your ordeals with square rooms? have you conquered them and how? i have a near perfect cube (4m L x 4m W x 3.5m H) room

[hein]

Dear Gerry,

Im confused. Whenever I am with my wife I seem to need Viagra to get going. But when Im with other chicks, I dont seem to need any? Please explain.

[dinolara]

???

[vintage_dog]

Dear Gerry,

Im confused. Whenever I am with my wife I seem to need Viagra to get going. But when Im with other chicks, I dont seem to need any? Please explain.

off-topic post

[noctilux]

hi gk,

may i know your ordeals with square rooms? have you conquered them and how? i have a near perfect cube (4m L x 4m W x 3.5m H) room

GK, if I may, I hope you dont mind.

Hi Arnold,
Expect strong frequency bumps at 86.19 Hz, due to boundary reinforments of your 4 meter wide dimensions.
Another bumb is expected at 98.51 Hz. If you plan on using tube traps/bass traps, concentrate on this frequency range to flatten your room response. However, some speakers, like the LS 3/5A, have the same frequency bumps in this region that you have in your room.
This bump actually gives a sense of more bass since our ears are more sensitive in this region than the lower bass region (20-50hz). An equalizer of sorts? Maybe, so just try to speaker placements in the 2 and 1 meter ranges in your room, since these are essentially multiples of the 86.19 bumb that you may have in your room.
Hope this helps
Noct

[arnoldc]

noct, is that the reason i loose low bass? mid bass seems to be ok at a certain position (listener close to wall)

[ichabod]

acoustician noct. how about these dimensions for an LS 3/5a placement.

15 L x 9 feet W x 10 feet H? I always end up playing it by ear and get better results dabbling with tone controls, and incremental movements, but would appreciate the frequencies where I bound or most likely to get standing waves, and cancellation of other low frequencies as a result. Much obliged. If audio physic ain't married yet, wanna try it in this room with the LS. Thank you most.

[bomalabs]

Re the square rooms, I would stay away from them as much as I would I would Hein, who. while others are trying incredibly hard to make sense of this crazy hobby, seeks to mock this corner of Wired State. Cool it Heinrich. Lets be more thoughtful of others. Back to square rooms. Ideal rooms are always rectangular. Another problem for us is the fact that locally we cant all have rooms with sizes thast can accomodate the bass alone, which requires about 16 or so feet for a bass note to fully reach it's peak.
I am off to help JR finalize plans for the Wired State accomdation on the 23rd of August. There will be guests from Transparent Audio and Genesis who will speak on their various products and JR gave us an allocation for 50 members from Wired State. Please let me know mote or less if you can make it, so JR can adjust space accordingly. I hope we can be polite and courteous to these guests as we are representing our country in this occasion. As I always say Mabuhay and Pilipino . Pero hindi lahat.

[arnoldc]

thanks gerry, for the heads up on the square room.

[KD]

Re: Square Room

What if we oriented the speakers/listening chair at a 45-degree angle (so that the corners are at the extreme left and right of listener)?

[hein]

Hey GK,

Just adding a li'l fun to this crazy hobby. See ya this coming monday! Havent seen you in a long time. Im sure its going to be a blast!

[iceman90a]

ice:
still cant get the sound to come out from outside the side of the speakers, maybe its because they are too close to the side walls?
gk: maybe you are too close too the side walls. how about giving me your ddistances from speaker to rear wall, to listening chair, to side walls, and finally, it is my firm belief that you beloved tv set if causing quite a bit of interference to your sounf systems overall sound. you will will have to decide to push it back to get it out of the way because having it in between the speakers will really cause major distortion. please find a remedy for this cause i can only help you as much as you are willing to help yourself.
gk

update on my experiments...

i figured i like the sound from my ht spkrs - i placed my bookshelf spkrs smack on top of them i like the way it sounds so i temporarily ditched my stands... i now have the middle of the spkrs 21" away from the sides and the rear of the spkrs 17" away from the back wall... the sound seems to have more body this way

i also rearranged the rack, it helped in the imaging and depth, this will have to do while i work on finding another place for the tv

any comments welcome

[Superman]

bro, congrats on your re-arranged set-up...total overhaul vs. the arrangement when i was there at your place...i don't see the 300B

[s2kov]

Ano yung floorstander na pinatungan?

[Hyperion]

iceman90a,

Your speakers are too close to one another. Try spacing out your speaker further apart, while adding some some absorbent material in the first reflection points along the sidewall to compensate for the speakers' proximity to them. Adding some absorbent/diffusive material behind your speakers is also a good idea.

GK is correct, that TV and rack doesnt help you get good sounds either. It would be a good idea to cover the TV with a thick blanket when you are listening.

[iceman90a]

thanks Hyperion,

was a little worried about adding damping material as it might sap out the highs (which i am fond of)

will work on this some more

s2kov - sent you pm

[Jon Agner]

iceman90,

Seems you've aligned your speakers behind the rack. Try moving 'em in front. Also, you can try covering the sides of your rack with a diffusive material, It may help minimize interaction between your speakers and the rack. I don't think the additional damping material will sap out the highs. In fact, I might even provide better focus on the highs, which is what you want.

Just my 2 cents worth.

Cheers

[Jon Agner]

hi gk,

may i know your ordeals with square rooms? have you conquered them and how? i have a near perfect cube (4m L x 4m W x 3.5m H) room

GK, if I may, I hope you dont mind.

Hi Arnold,
Expect strong frequency bumps at 86.19 Hz, due to boundary reinforments of your 4 meter wide dimensions.
Another bumb is expected at 98.51 Hz. If you plan on using tube traps/bass traps, concentrate on this frequency range to flatten your room response. However, some speakers, like the LS 3/5A, have the same frequency bumps in this region that you have in your room.
This bump actually gives a sense of more bass since our ears are more sensitive in this region than the lower bass region (20-50hz). An equalizer of sorts? Maybe, so just try to speaker placements in the 2 and 1 meter ranges in your room, since these are essentially multiples of the 86.19 bumb that you may have in your room.
Hope this helps
Noct

Noct, Bomalabs,

Would placing cabinets on one side (or even both sides?) of the room help in adjusting the geometry of the listening area?

[Hyperion]

iceman90a,

Jon Agner is correct. Addition of proper damping material will make the highs sound cleaner, clearer and smoother. Only overdamping the room will make the sound dull. Looking at your room ... you need not worry ... it is still a long long way from getting overdamped hehehe.

[noctilux]

noct, is that the reason i loose low bass? mid bass seems to be ok at a certain position (listener close to wall)

I dont think so. You may be losing low bass if your room is on a suspended wooden floor (wood t&g flooring on wood joists). This type of floor sometimes tend to act like bass traps.
Question: how low is low bass? is it below 40Hz? I'm sure you've tried subs in your rig. Wa happend? I'd like to know
For me, sometimes limited low end but very tuneful midbass (70-120Hz) sounds pretty good. try to avoid speaker positions and listening positions in the 2m, 1m, and 0.5m distances. try to use 2.66, 1.33 or .8m, 1.6m, 2.4m, 3.2m as "good feng shui" numbers for your room. Of course you can't avoid the middle position for good imaging between speakers but try not to use the other bad feng shui numbers for distances to boundaries.
I hope this helps.
Maybe we can move this topic elsewhere, nakakahiya kay GK.
regards
noct