- Kloug
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Custom Cool utilisateur
Tiens, je viens justement de tomber là-dessus, il y a un post à propos des G12M en open back :
http://www.tdpri.com/forum/amp(...).html
To complicate this more, some speakers don't sound right in open back cabs, like the Celestion G12M Greenback, which has too small a magnet structure, the bass gets flubby and the breakup gets trashy (not in a good way) in open back cabs, but in a closed back 2x12 or 4x12 these speakers sound great. Conversely, some speakers don't sound great in closed back cabs. The Celestion Alnico Blue sounds much better in an open back cab - it has plenty of bass response either way, but it has more complexity and opennes and chime in the open back cab, it sounds "simpler" and "constricted" in a closed back cab.
http://www.tdpri.com/forum/amp(...).html
Citation:
Assuming two identical speakers in two identical cabinets, one open back and one closed back, the open back cabinet will have a chimier, more open and complex sound, will spread the sound around the room a lot more, will have looser bass response (but lots of speakers are designed for this, so that doesn't mean you won't have any bass if you have the right speakers). The closed back cabinet will be tighter, punchier, "simpler" and less complex sounding, less "airy" sounding, and much more directional (less sound at the back and sides). If you want to sound like Angus Young, or the Ramones, for instance, that's a closed back cabinet sound. If you want to sound like Tom Petty, that's an open back cabinet sound for the most part.To complicate this more, some speakers don't sound right in open back cabs, like the Celestion G12M Greenback, which has too small a magnet structure, the bass gets flubby and the breakup gets trashy (not in a good way) in open back cabs, but in a closed back 2x12 or 4x12 these speakers sound great. Conversely, some speakers don't sound great in closed back cabs. The Celestion Alnico Blue sounds much better in an open back cab - it has plenty of bass response either way, but it has more complexity and opennes and chime in the open back cab, it sounds "simpler" and "constricted" in a closed back cab.
