Bravo Audio - funny looking little tube amps
Mar 29, 2011 at 5:27 PM Post #1,546 of 2,720


Quote:
Anyone want to buy my V2?
Comes with a bunch of tubes!


I might be interested in buying some tubes, especially any lower priced ones.
 
What tubes do you have?
 
 
Apr 3, 2011 at 6:00 PM Post #1,547 of 2,720
If that could help anyone experiencing weird noise or static coming from their amp, mine needs to be cooled after maybe 20mins for listening.  Keeping it cool (near a computer fan) solve the problem.
 
Apr 4, 2011 at 3:10 PM Post #1,549 of 2,720
anyone used these with iems? i want to get them for their novelty factor, so im just curious if they pair well with iems. 
 
Apr 4, 2011 at 8:35 PM Post #1,550 of 2,720
Quote:
...and maybe a recommendation for a tube to be used for it?



Not sure which version you are using [of the amp]. I'm using a Siemens ECC88 A-frame (6 volt tube) [6N11/6DJ8/6922/ECC88, replacement].  This tube is very clear, transparent, detailed and not at all muddy like the 6N11 tubes bundled with the amp.  Not sure where it was made.  The getter is nothing like the other Siemens ECC88s (it is the only ECC88 with an A-Frame I've seen that's not a E88CC).  I'm sure the other getter sounds just as good.
 
Apr 4, 2011 at 9:38 PM Post #1,552 of 2,720
Quote:
well, i just got a 12au7 tube,  It is a 6n11 replacement, its literally the same tube under a different name so im told.


You must of got an amp with a 6V/12V switch (12AU7 is a 12volt tube and not a direct replacement for a 6N11 [6V tube]).
 
On American Tube names the first number is the heater voltage.  (6N11 is a chinese name for a tube, I don't know their system but I know it has a 6v heater).
 
Apr 4, 2011 at 10:26 PM Post #1,553 of 2,720
I dont know what version it is, but the research i did resulted in multiple people saying the 6n11 and the 12au7 can be swapped without a problem.  If not, its okay because I only paid like 3 bucks with free shipping for it haha.  Anyway, here is a pic.  It is a dc24 volt, just picked up an adpater for it on ebay.  So, if you think the tubes are not sufficient for it, please let me know what else might be a better option
 

 
Apr 5, 2011 at 4:18 AM Post #1,554 of 2,720
Thats a 6V version with bias adjusting. Don't use 12V with it.
 
Quote:
I dont know what version it is, but the research i did resulted in multiple people saying the 6n11 and the 12au7 can be swapped without a problem.  If not, its okay because I only paid like 3 bucks with free shipping for it haha.  Anyway, here is a pic.  It is a dc24 volt, just picked up an adpater for it on ebay.  So, if you think the tubes are not sufficient for it, please let me know what else might be a better option
 



 
 
Apr 5, 2011 at 4:19 AM Post #1,555 of 2,720
Won't work with iem, too much gain, too much interference. This is best with 100+ ohm headphones.
 
Quote:
anyone used these with iems? i want to get them for their novelty factor, so im just curious if they pair well with iems. 



 
 
Apr 5, 2011 at 4:24 AM Post #1,556 of 2,720
Tube won't matter that much with this amp unmodified. You should first make it better by at least changing the output FETs for better treble, the old FETs rolled the frequency at 10KHz.
 
Quote:
Can someone tell me where I can get just the power cord for the Bravo audio amp, and maybe a recommendation for a tube to be used for it?



 
 
Apr 5, 2011 at 6:28 AM Post #1,557 of 2,720
I am not at all interested in modding it.  All I care about is that it works and sounds decent, being picky is something I'd rather not be when it comes to cheap amps :)
Unless the mod you speak of is very easy, odds are good I wont change anything.
 
 
Apr 5, 2011 at 9:00 AM Post #1,558 of 2,720
Let the original tube stays, won't give that much difference buying/using expensive tube with unmodified bravo amp.
 
Quote:
I am not at all interested in modding it.  All I care about is that it works and sounds decent, being picky is something I'd rather not be when it comes to cheap amps :)
Unless the mod you speak of is very easy, odds are good I wont change anything.
 


 
 
 
Apr 5, 2011 at 9:52 AM Post #1,560 of 2,720

12au7 is not the same as 6n11.
http://en.wikipedia.org/wiki/12AU7
http://en.wikipedia.org/wiki/6DJ8
 
The 12 works with 12V and the 6n11 works with 6V. Your amp is a 6V version, so don't get the 12au7.
Quote:
My bravo amp was a gift that didnt come with a tube or the power cord, so it was either I pay $30+shipping for a 6n11, or $3.50 for the 12au7 which is the same thing heh



 
 

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