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quindecima
08-06-2006, 07:03 PM
I have two speaker connections with fuse holders in them. If I wanted to fuse my speakers what size fuse should I use? I would be fuseing a 416-8b and a 802-8g. Driving with tube mono amp 70w out. :crying:
Rolf
08-07-2006, 11:27 PM
You don't need fuses. Use your ears and a large enough amp. Besides, fuses mess up the sound. Happy listening.
HipoFutura
08-08-2006, 04:32 AM
As an example an 8 ohm speaker with a 100 watt max power rating would require a 1.75 amp fuse. 2 amp will be ok. Be sure to use quick acting fuses. Do not use slo-blo.
Baron030
08-08-2006, 04:08 PM
You don't need fuses. Use your ears and a large enough amp. Besides, fuses mess up the sound. Happy listening.
__________________
Rolf

Hi Quindecima
I have to agree with Rolf.
Trust your ears.
Back in the mid 70’s, I once blew up a D-130, with a just 14-watt per channel tube amp. Sure, I had fuses on the drivers. But, they did not do anything. The real cause for that drivers failure was my own stupidity, by allowing the amplifier to clip a lot. So, there is a real danger in having too little power.
As long as you don’t push the amplifier into clipping, your drivers should be able to handle 70 watts without any problems.

Baron030
Don Mascali
08-08-2006, 04:51 PM
If you use a FlameLinear amp or some of the other older amps you had better have something there.:D
Some of them don't die gracefully.
HipoFutura
08-08-2006, 05:02 PM
Hey, easy with the "flamethrower" comments. I have a bunch of Phase Linear gear and love them all! :thmbsup: Unfortunately, you are correct!
Don Mascali
08-08-2006, 05:59 PM
I HAD a 700 II myself... Great amp, 'till I let the "Magic Smoke" out.:D
Rolf
08-08-2006, 11:23 PM
I HAD a 700 II myself... Great amp, 'till I let the "Magic Smoke" out.:D

Lucky for me I was aware of the problem, so I never bought one. A friend of mind had a 400 on a pair of 4350's (bass section, and a DB Systems for the rest). It Sounded great at that time.
duaneage
09-06-2006, 09:20 PM
Old Colony Sound Lab sells a speaker protection kit that adds a relay circuit to any amp. At 30 dollars it's a steal. The signal goes straight through relays and if DC is sensed it opens real quick. Modern amps have this feature, same circuit.