Subwoofer crawl
audioblaster
Posts: 38
Hey guys. Just wondering how many people out there actually do the subwoofer crawl and place the sub where you sit and crawl around the room? Does this really make a big difference?
Comments
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The issue is the very long wavelengths of low frequencies,which are so long that they are measured in feet (*compared to high frequencies' wavelengths which can be measured in millimeters*) So as a result the bass frequencies wind up interacting with the three physical dimensions of the room and can boost or cut the bass in different parts of the room at different frequencies. This is what is called standing waves and they can have a HUGE effect on the bass. Hence the whole reason for the subwoofer crawl. However newer home theater receivers and processors have digital eq circuits that can obviate the need for all of that. Also having more than one sub placed in different parts of the room can help.
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Cool thanks for the info. Do know if my receiver takes care of that. Denon avr-3808ci
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Is that like a bar crawl ? lolHT SYSTEM-
Sony 850c 4k
Pioneer elite vhx 21
Sony 4k BRP
SVS SB-2000
Polk Sig. 20's
Polk FX500 surrounds
Cables-
Acoustic zen Satori speaker cables
Acoustic zen Matrix 2 IC's
Wireworld eclipse 7 ic's
Audio metallurgy ga-o digital cable
Kitchen
Sonos zp90
Grant Fidelity tube dac
B&k 1420
lsi 9's -
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That's a very nice AVR @audioblaster - I would say that it does have the room corrections but the better the level of Audyssey the better the level of corrections (Gold > Bronze or XT32 > XT).Audio: Polk S15 * Polk S35 * Polk S10 * SVS SB-1000 Pro
HT: Samsung QN90B * Marantz NR1510 * Panasonic DMP-BDT220 * Roku Ultra LT * APC H10 -
I did the crawl today. The spots where it sounded best was right were the speakers are located. I found it difficult to locate the best spot. When I crawled, like I said it sounded best right at the fronts. Not sure if it was because the fronts put out lots of low end on their own.
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@Willow
How many subs do you have?
If only one have you thought about trying more than one? Not just for more bass as most think,but to better help alleviate the standing wave issue for which you did the subwoofer crawl. By having more than one they can work in tandem to reduce the effects of the standing waves that all rooms have far better than just one. -
I had troubles getting my 2 160lb subs on my couch, I was crawling to the medicine cabinet after that.2 channel:
Bryston 4B3, Bryston BDA3, Cary SLP05, Shanling CDT1000SE with parts conneXion level 2 mods, Nottingham analogue ace space 294, soundsmith Carmen MKii, Zu DL103 MKii, Ortofon MC 20 MKii, Dynavector XX2 MKii, Rogue Audio Ares, Core power technologies balanced power conditioner, Akiko Corelli power conditioner with Akiko Audio HQ power cable, Nordost heimdall 2, Frey 2, interconnects, speaker and power cables, Focal Electra 1028 BE 2, Auralic Aries Femto, Black diamond racing cones, ingress audio level 1 roller blocks, JL Audio E110 with Auralic subdude, Primacoustics room treatments.
Theater:
Focal Aria 926,905,CC900, SVS PB ultra x2. Pioneer Elite SC85, Oppo BDP93, Panamax M5400PM, Minix neox6, Nordost Blue heaven LS power cables. -
I haven't done "the crawl" but I have walked around the room and I know where the points are that are lacking bass. Rather than add another sub or 2 I try to avoid those spots when listening to music.
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I had troubles getting my 2 160lb subs on my couch, I was crawling to the medicine cabinet after that.
I thought your back was as strong as a horse
My back just started to hurt at the thought of putting those PB13's onto the couch. lsim705,lsim706c,lsif/x(4)+mc80(atmos)
rti6,csi5,fxi5 -
honestaquarian wrote: »@Willow
How many subs do you have?
If only one have you thought about trying more than one? Not just for more bass as most think,but to better help alleviate the standing wave issue for which you did the subwoofer crawl. By having more than one they can work in tandem to reduce the effects of the standing waves that all rooms have far better than just one.
If it was up to me I'd have two. After this last major spending, there is no way she'd let me get another one in there.
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Aaaahhh
The infamous WAF (*Wife Acceptance Factor*) at work again
Well maybe if ya put`em on yer couch like Mikey there................. -
Its tough because it's a 12x 21 room with an open kitchen and eat-in kitchen at the end. If this was in the basement she wouldn't care to have 2 subs. They are not very "pretty" and they are quite large. might have to look into Rel one day.
