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Bravo Audio - funny looking little tube amps - Page 170

post #2536 of 2688
It probably could drive them out of the RCA on the back. If they are small low powered desktop speakers.
post #2537 of 2688
Nope.
post #2538 of 2688
Quote:
Originally Posted by DefQon View Post

Nope.

Dude, love your style ;) Please do share the 12bh7 data. I love em in my sunrise.

post #2539 of 2688

just got the new Solid State Bravo amp in the post, small with clear acrylic casing like their tube amps, Op-amp rollable, will post pics and impressions soon (busy man atm, with DDS DAC-01 and HA-01, also T-Peos H-300)

post #2540 of 2688

i just bought the bravo ocean and want to hear some of your guys opinion about rolling tube

 

1.will bravo ocean work good with electro harmonix tube 12au7 gold pin? (price $20)

how will it sound? more warm or less warm compare to shuguang, more detail?

 

2. Northern Electric 12AU7 is this better than the electro harmonix tube 12au7 gold pin? (price$40)


Edited by hugoboss - 4/8/14 at 11:45am
post #2541 of 2688
Quote:
Originally Posted by hugoboss View Post
 

i just bought the bravo ocean and want to hear some of your guys opinion about rolling tube

 

1.will bravo ocean work good with electro harmonix tube 12au7 gold pin? (price $20)

how will it sound? more warm or less warm compare to shuguang, more detail?

 

2. Northern Electric 12AU7 is this better than the electro harmonix tube 12au7 gold pin? (price$40)

 

Please read back a few pages and read my impressions on tubes. Basically, I think the stuff being made now is junk. But that's just my opinion.

post #2542 of 2688

I buy the Northern Electric 12AU7 today. after listening several songs

iam sure i will not regret this tube. it's sound so better than the shuguang.

more detail, cleaner, wider.

post #2543 of 2688

Just received one of these in the mail, I was wondering what in your opinion would be the best tube to roll for listening to rock (eg. Led Zep)?

Would upgrading the input jacks make any difference to quality also?

 

Thanks.

post #2544 of 2688
Quote:
Originally Posted by Dinnr View Post

Just received one of these in the mail, I was wondering what in your opinion would be the best tube to roll for listening to rock (eg. Led Zep)?
Would upgrading the input jacks make any difference to quality also?

Thanks.
Which version did you get?
post #2545 of 2688
Quote:
Originally Posted by Didhefocus View Post

Which version did you get?
It was the audio v2 with the chinese 12au7 tubes (i think that is what they are called).
post #2546 of 2688

To me, those Chinese tubes sound just OK but have terrible microphonics. Tap the tube lightly with a pencil without any signal and hear the ringing. 

I have the V3 which takes a 6922 and came with a decent Russian Electro-Harmonix but my Little Bear P-1 probably came with the same tube as your V2. I got some 50's and 60's vintage 12AU7s from this guy on ebay  http://www.ebay.com/usr/spin4cards . He only lists matched pairs but he sold me mixed singles for only $4.95 each shipped! I was very satisfied with his choices, all US made. My favorite is a Raytheon with long black plates. Led Zeppelin sounds great with it! Just send him a message and tell him what you're looking for.

Replacing the connectors won't affect the sound but gold plating may give you better protection from corrosion in the long run.

post #2547 of 2688
Quote:
Originally Posted by Dinnr View Post
 

Just received one of these in the mail, I was wondering what in your opinion would be the best tube to roll for listening to rock (eg. Led Zep)?

Would upgrading the input jacks make any difference to quality also?

 

Thanks.

In my opinion, the single most effective mod you can do on these amps is to replace the IRF630 MOSFETs with IRL510. Crosstalk distortion (this amp's worst flaw) is all but eliminated and the high end is extended beyond 30khz.


Edited by Didhefocus - 5/11/14 at 8:48pm
post #2548 of 2688

I agree, 2nd worthwhile mod is to replace the two DC blocking caps with something decent like Elna Silmic II.

post #2549 of 2688
Alright, I live in the UK so I guess I shall have to search around for some tubes, it looks like I shall be replacing the mofsets and caps mentioned above.

Thanks!
post #2550 of 2688
Get an old Mullard valve from eBay. I picked one up for less than £20 and it transformed the sound.
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