Bass amp
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Category: Plans
Forum Name: Other plans
Forum Description: Discussion / Questions about all the other plans
URL: https://forum.speakerplans.com/forum_posts.asp?TID=4997
Printed Date: 27 March 2026 at 8:46am
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Topic: Bass amp
Posted By: Iriedaily
Subject: Bass amp
Date Posted: 11 May 2006 at 1:22pm
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Greetings! Planning on building a custom valve bass amp. They person who's building wants to go for GU80-600W or GK71-250. Bass amp has to be about 2000W. I am a total newbie but need an expert opinion. Every post I will show to the person that is doing the amps and he'll respond. Irie bless! ------------- Greetings in the name of the Most High. Emperor Haile I Selasse I, Jah Rastafari, His Imperial Majesty HIM. |
Replies:
Posted By: TRE4U2NV
Date Posted: 11 May 2006 at 2:04pm
WHAT KIND OF VALVES WILL HE BE USING KT88 / EL36 OR RUSSIAN NONAMERS WHAT HIS PRICE FOR SOMETHING HALF THAT POWER AND WHAT SIZE WILL IT END UP AS I WOULD GEUSS THAT IT WILL BE BLOODY HEAVY  BUT TOTALLY WORTH IT FOR US OLD SKOOL DUB FOOLS ------------- IM SO SECRETIVE BUT I CANT TELL YOU WHY |
Posted By: Tom Umney
Date Posted: 11 May 2006 at 2:35pm
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Read this post: http://www.bloodandfire.co.uk/db/viewtopic.php?p=121529&highlight=#121529 - http://www.bloodandfire.co.uk/db/viewtopic.php?p=121529& highlight=#121529 It was saying if you use JAN tubes [ Joint Army Navy] made for military use, you get high quality great sounding valves way much cheaper without paying high prices like the name brand ones like Mullard.
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Posted By: Iriedaily
Date Posted: 12 May 2006 at 4:08am
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Toxic Unfortunatelly the KT88 is 600V but only 40W http://www.mclink.it/com/audiomatica/tubes/kt88.htm  ------------- Greetings in the name of the Most High. Emperor Haile I Selasse I, Jah Rastafari, His Imperial Majesty HIM. |
Posted By: Mark James
Date Posted: 12 May 2006 at 4:47am
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KT88? of course its only 40w its what fender used to use in alot of their twin/black face amps [guitar amps] in the late 60s +70s [iirc] ------------- insert silly sentence here |
Iriedaily wrote:Posted By: Iriedaily
Date Posted: 12 May 2006 at 4:25pm
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Still no answer if the GU80-600W or GK71-250 are good for bass amps people.
------------- Greetings in the name of the Most High. Emperor Haile I Selasse I, Jah Rastafari, His Imperial Majesty HIM. |
Posted By: Tom Umney
Date Posted: 12 May 2006 at 11:57pm
I wrote this above.......... But did you completely ignore my post, cos it seems like it.
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A very usefull read that link for making high powered pa valve amps.Posted By: Tom Umney
Date Posted: 13 May 2006 at 12:02am
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Yes but you use multiples of them. Even 300w total made up of of them KT88 valves would give amazingly powerfull bass even. Jah Observer uses 600w valves for the bass, 15 of the KT88. http://www.jahobserver.com/movie/amp.swf - http://www.jahobserver.com/movie/amp.swf
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Posted By: godathunder
Date Posted: 16 May 2006 at 10:04am
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dont think thats 15 of em, theyre usually used in pairs for push pull. probably 6pairs, 2 ECC83 or similar preamp valves and a rectifier. cant really make it out too well - but it looks as if the preamp valves are uncanned - must pick up a fair bit of noise. ------------- LOUDER THAN LOUD |