There is a thread on the home theater sub that I wish more people would copy. Guy posted a while back saying he had upgraded to an Onkyo TX-RZ30 and a pair of B&W 603s and was underwhelmed by the low end and slightly overwhelmed by the top end. The replies mostly told him not to buy more speakers. Move what you have, treat the room, add a second subwoofer. He actually did it, and then came back and said so.
What he ended up with was the speakers swapped into where the lamps were to widen the stage, and his one cheap Klipsch sub replaced by two SVS SB-1000 Pros rather than one larger box. That second part is the lesson worth pulling out. When a single sub sounds thin at the seat, the instinct is that it lacks output, so people go shopping for more driver. Usually it lacks output at that specific seat, because room modes have parked a null right where the sofa is, and no amount of extra cone area fixes a cancellation. Two smaller subs in different positions do fix it, because they excite the room differently and one fills what the other drops.
The bright top end complaint is the other half. The 603 has a reputation for a forward treble, and pushed hard against a wall with reflective surfaces either side it will happily confirm it. Pulling them out and killing the first reflection points does more than any receiver setting.
So how many people here bought a second sub before they ever measured the first one? I did, and it worked by accident.
What he ended up with was the speakers swapped into where the lamps were to widen the stage, and his one cheap Klipsch sub replaced by two SVS SB-1000 Pros rather than one larger box. That second part is the lesson worth pulling out. When a single sub sounds thin at the seat, the instinct is that it lacks output, so people go shopping for more driver. Usually it lacks output at that specific seat, because room modes have parked a null right where the sofa is, and no amount of extra cone area fixes a cancellation. Two smaller subs in different positions do fix it, because they excite the room differently and one fills what the other drops.
The bright top end complaint is the other half. The 603 has a reputation for a forward treble, and pushed hard against a wall with reflective surfaces either side it will happily confirm it. Pulling them out and killing the first reflection points does more than any receiver setting.
So how many people here bought a second sub before they ever measured the first one? I did, and it worked by accident.
