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Unimpressive sound from Tannoy B475 subwoofer?

I impulse bought two tannoy b475 18" pro subwoofers over the weekend for what seemed like a good price.

Unfortunately, I can't seem to manage to get decent sound out of them. Did I just make a mistake and buy subs that don't perform well, or is there possibly a problem with my setup?

They want 400w-800w. I've tried a crown 800 (bridged) and a jbl synthesis 400 (bridged) and neither made them sound all that hot. The sub signal is coming from a pioneer elite, which isn't the best setup, but seems to drive my mb quart vera sub fairly nicely. The tannoy sounds much worse.

One possible issue: the crown needs a + and - for input, but the sub output is RCA, so I cut the end off a RCA cable and got the +/- from that. Perhaps bad idea?
dddrrreee

Showing 2 responses by herman

herman
2,280 posts
 
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They may be pro audio but no reason they couldn't work in a home system.

I really don't understand how you have them connected so can't comment on that, but you can't really judge them by themselves. Just listening to below 80Hz is going to sound muffled and suck. How does it sound when playing the system full range?

My system if tri-amped and listening to just one band sucks but all together it sounds wonderful.

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herman
2,280 posts
 
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What isn't "decent" about them?

Integrating subs is never easy and now you need to integrate two. They need to be crossed over at the proper frequency with the proper slope at the proper level and properly placed. This takes a lot of time experimenting so no wonder you haven't achieved decent sound yet.

The number one mistake people make is turning them up too loud. If they are drawing attention to themselves they are too loud.

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