boxy sounding cabinet

frosty55 · 08-12-2008, 10:48 PM

Any advice for getting a good sound from a 2x12 guitar cab.
Having built it myself, loaded it with a celestion Vintage 30 and a celestion G12-H, the sound i get is quite" boxy".
Cab is driven by a Marshall JCM200 TSL100 valve amp and i use a Gibson Les Paul. Do the speakers need "playing in"?
Certainly dont get as much top end to the sound that i used to from my 4x12 bwith celestion V30s in.

corworld · 08-13-2008, 03:27 AM

More details please. Open or closed back? Parallel or series wired? A picture would help.

frosty55 · 08-13-2008, 06:39 AM

drivers are 8 ohm, wired in paralell. Cab is sealed back.

corworld · 08-13-2008, 06:50 AM

This is outside the scope of this forum but the internal dimensions of a sealed cab are critical to the end sound. If your design was a new one, this may be part of the problem. Adding a port or making it a semi-open back could help but that may not be the sound you're after.

Also, check that the speakers are in phase. + and - wires going to the same terminals. That would serious mess up the sound.

Wakculloch · 08-13-2008, 09:10 AM

Experimenting with different absorbent linings may help. Boxy sound can be symptomatic of reflections off the cabinet back wall coming through the cone.

mac1amps · 08-13-2008, 10:23 PM

Also be aware of the fact that closed back cabs, which are known for more "punch" (low end), are also known to reduce "brilliance" vs. open back.

08-12-2008, 10:48 PM	#1
frosty55 Member Join Date: Jun 2008 Location: u.k. Posts: 31	boxy sounding cabinet Any advice for getting a good sound from a 2x12 guitar cab. Having built it myself, loaded it with a celestion Vintage 30 and a celestion G12-H, the sound i get is quite" boxy". Cab is driven by a Marshall JCM200 TSL100 valve amp and i use a Gibson Les Paul. Do the speakers need "playing in"? Certainly dont get as much top end to the sound that i used to from my 4x12 bwith celestion V30s in.

08-13-2008, 06:39 AM	#3
frosty55 Member Join Date: Jun 2008 Location: u.k. Posts: 31	guitar cab boxy sound drivers are 8 ohm, wired in paralell. Cab is sealed back.

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08-13-2008, 03:27 AM	#2
corworld Junior Member Join Date: Sep 2007 Location: New Mexico Posts: 19	More details please. Open or closed back? Parallel or series wired? A picture would help.

08-13-2008, 06:50 AM	#4
corworld Junior Member Join Date: Sep 2007 Location: New Mexico Posts: 19	This is outside the scope of this forum but the internal dimensions of a sealed cab are critical to the end sound. If your design was a new one, this may be part of the problem. Adding a port or making it a semi-open back could help but that may not be the sound you're after. Also, check that the speakers are in phase. + and - wires going to the same terminals. That would serious mess up the sound.

08-13-2008, 09:10 AM	#5
Wakculloch Senior Member Join Date: Jan 2008 Location: Galashiels, Scotland Posts: 149	Experimenting with different absorbent linings may help. Boxy sound can be symptomatic of reflections off the cabinet back wall coming through the cone.

08-13-2008, 10:23 PM	#6
mac1amps Senior Member Join Date: Sep 2006 Location: Chicago Posts: 137	Also be aware of the fact that closed back cabs, which are known for more "punch" (low end), are also known to reduce "brilliance" vs. open back.

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