Hoffman Amplifiers Tube Amplifier Forum

Other Stuff => Cabinets-Speakers => Topic started by: catnine on January 10, 2013, 08:55:27 pm

Title: I have a P-P amp I have described in the build forum .
Post by: catnine on January 10, 2013, 08:55:27 pm
It's basically a brown princeton with larger Allen Amps trannys for a deluxe . On the forum it was decided my amp put out about 18 to 20 watts .

 I had a weber ceramic 30 watt silver bell in it but the bottom end was too heavy so I sold the silb\ver bell and got a weber Sig 12 S alnico rated at 25 watts but weber does not state if that's RMS or not . I know one should have about twice the speaker watt rating as the amp has so that relates to 40 watts . So far I have not really cranked the amp much past half way and it has a strong bottom end .

 The silver bell had a larger voice coil and seemed heavier built but it ws still rated at 30 watts .

 I do hope this sig 12S holds up ok . As far as I could tell the BF deluxes used an Oxford rated at 23 watts .

 Any thoughts , can't afford another speaker these days .
Title: Re: I have a P-P amp I have described in the build forum .
Post by: smackoj on January 12, 2013, 03:23:31 am
I wouldn't worry about power rating on the Weber spkr.....if you are happy with the sound/tone then play the darn thing and enjoy it....the Weber is probably under rated meaning you can push 15 watts at it for a long time and not suffer any bad consequences. Also, it's good to know that clean musical sound thru a speaker does not generally 'blow' the thing up because of volume. Sudden pops like plugging in a guitar with the volume way up is much more likely to damage a voice coil.

ps: When you say you are playing thru a 'Brown Princeton' amp at about 20 watts, I am guessing you are not trying to out-volume Pete Townsend of the Who?! (by some accounts, the loudest rock group ever to shake the plaster off of the auditorium walls)

 :icon_biggrin:
Title: Re: I have a P-P amp I have described in the build forum .
Post by: Ed_Chambley on January 18, 2013, 12:16:51 pm
Weber will recone their speakers for $25 + Shipping.  I don't think you are in any danger of blowing it if you get rid of the mud when cranked up.  The quickest way to blow a speaker is with distortion coming from the amp.

Horns is a Sound system (PA) will blow easier from low watts than high wattage.