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Bravo Audio - funny looking little tube amps - Page 120

post #1786 of 2592

Hey, so I was interested in the Bravo V3 becuase it seems as though the tube amps give great sound for headphones. Would this amp work well with the SR-80i's? I know that its been a while since anyone has posted on this thread but, do you guys have any updates as to how your amp is holding up? (Preferably those who own the Ocean or V3)

 

So you guys suggest that I change the tube after I buy it? Is it easy to change the tube? Is it a soldering job or just plug in? What tubes are recommended?

post #1787 of 2592

No soldering is required, changing tube's is as easy folding a piece of paper. 

 

1. Turn off the amplifier let it cool down a few minutes (the tube still be hot a while).

 

2. Gently pull the tube out from the socket of the amp.

 

3. Slot in a matching equivalent tube (different make/manufacturer etc), confirm compatibility before turning amp on.

 

4. Once all good and the tube is fully intact, you're good to go, turn on amp and enjoy the music.

 

5. If you hear some hum or slightly distortion with the low's, certain NOS tubes can behave like this, let the tube reform itself (burn-in equivalent) for 24 hours for best results. If artefacts still persist, replace tube or try in another amp.

post #1788 of 2592
Nice, that sounds good. Thanks. How long have you had your amp? Do you happen to have the V3, cause I wanna know how good the equalizer works? I have the Pyle PTA2 small stereo amp to power my SR-80i's but like it becuase of the equalizing feature which works really well. I just want know how effective the V3 is in comparison.
Edited by Bassmntmuzik - 2/2/13 at 8:52pm
post #1789 of 2592

I'm thinking about getting a V1 or V2 for a Sennheiser HD600 - which one would you prefer and why?

 

Thanx a lot

f.
 

post #1790 of 2592
^ of this amp design, I would prefer an Indeed G3, because it has many upgraded components (resistors, low-noise power supply, capacitors, MOSFETS) two inputs & outputs, a switch to enable 6DJ8 or 12AU7 equivalent tube families, a bass/treble boost function that adjusts itself based on overall volume setting, a power-on safety delay to prevent the "pop!" that can damage your headphones and hearing, and more. The bravo made some improvements from their original release, and they're a bit cheaper, but unless you have modding skills I suggest you buy the Indeed version. If you read back through this thread, starting at the beginning or middle when these amps were most popular, you'll see that many people came to this conclusion. Particularly look for Judge Buff's posts, he ended up buying a few of each kind of amp.
post #1791 of 2592

Was wondering if these little tube amps could be used to color the sound from computer speakers?

 

I have the Audioengine A2 and was wondering if that's possible?

Would there even be any point?

post #1792 of 2592
Quote:
Originally Posted by Bassmntmuzik View Post

Nice, that sounds good. Thanks. How long have you had your amp? Do you happen to have the V3, cause I wanna know how good the equalizer works? I have the Pyle PTA2 small stereo amp to power my SR-80i's but like it becuase of the equalizing feature which works really well. I just want know how effective the V3 is in comparison.

I had the V1 Bravo prior to joining Head-fi (been a lurker since 2004) and as soon as I registered not long later I got a Bravo v2 for free, so it's been 2 year's of me owning the Bravo v2. I haven't tried the V3 because I don't think it's worth the extra dosh but it shouldn't be to bad if you want the addition of a simple built in equaliser. Dedicated equalisers and software eq are still by far more powerful with more control though. Just more finicky as you need to know what sound hertz range you need to adjust if you want a simple treble, tone and bass adjustment. Theoritically speaking, the V3 is a V2 with eq.

 

Quote:
Originally Posted by flatulenzio View Post

I'm thinking about getting a V1 or V2 for a Sennheiser HD600 - which one would you prefer and why?

 

Thanx a lot

f.
 

 

Skip out both and get yourself a Bottlehead Crack or Sunrise DIY amp (or built for a bit more money). None of the Indeed's, Bravo's will do the headphones justice not just impdedence wise. 

 
Quote:
Originally Posted by blazingazn View Post

Was wondering if these little tube amps could be used to color the sound from computer speakers?

 

I have the Audioengine A2 and was wondering if that's possible?

Would there even be any point?

 

These are not designed to power speakers directly unless you use the Bravo or Indeed as a dedicated pre-amp, their isn't much coloration added just more warmth.


Edited by DefQon - 2/5/13 at 4:18pm
post #1793 of 2592

   Hi all. Had a bravo V2 now for over 3 months. Nice little amp but after reading this entire thread I've invested in a good soldering gun and sucker ;) Hope to start all the great mods suggested in the next few weeks. Thanks head fi!

post #1794 of 2592
Quote:
Originally Posted by stupidmop View Post

   Hi all. Had a bravo V2 now for over 3 months. Nice little amp but after reading this entire thread I've invested in a good soldering gun and sucker ;) Hope to start all the great mods suggested in the next few weeks. Thanks head fi!

 

In order for sound difference (biggest diff from top to bottom):

 

Tube rolling

IRL510 PBF or N mosfets

Crosstalk mod

Change caps to bigger values and using better brands Nichi's or Elna's will do replacing those NCC's.

Change LM317 to 317A military spec fets

 

Optional but very beneficial and massive change to background noise but expensive:

 

o22 (Sigma22) regulated power supply or equivalent.

post #1795 of 2592
Quote:
Originally Posted by DefQon View Post

These are not designed to power speakers directly unless you use the Bravo or Indeed as a dedicated pre-amp, their isn't much coloration added just more warmth.

 

AudioEngine A2 are self powered so I guess these would assume the role of a pre-amp?

 

I just got it today!

Overall first impressions, I'm impressed. My Shure SRH840 sound much better! Bass punch is cleaner, highs have more detail, separation and soundstage is better.

Did not hear a big difference with my Grado SR225s.

 

I'll burn these in until the weekend and see what's up.

DefQon, hope you'll be cool with me PM'ing you in regards to eBay Tube auctions, just want your expert opinion!

post #1796 of 2592
Quote:
Originally Posted by blazingazn View Post

 

AudioEngine A2 are self powered so I guess these would assume the role of a pre-amp?

 

I just got it today!

Overall first impressions, I'm impressed. My Shure SRH840 sound much better! Bass punch is cleaner, highs have more detail, separation and soundstage is better.

Did not hear a big difference with my Grado SR225s.

 

I'll burn these in until the weekend and see what's up.

DefQon, hope you'll be cool with me PM'ing you in regards to eBay Tube auctions, just want your expert opinion!

^ No problems, be happy to be of help.

 

Yes they will be working as a pre-amp. I've always felt that anything Grado or Alessandro up to the GS1000's work better with solid state amps over tube based, the synergy is great with some ss amp's and some Grado/Alessandro's.

post #1797 of 2592
Quote:
Originally Posted by DefQon View Post

 

In order for sound difference (biggest diff from top to bottom):

 

Tube rolling

IRL510 PBF or N mosfets

Crosstalk mod

Change caps to bigger values and using better brands Nichi's or Elna's will do replacing those NCC's.

Change LM317 to 317A military spec fets

 

Optional but very beneficial and massive change to background noise but expensive:

 

o22 (Sigma22) regulated power supply or equivalent.

 Wow, thanks Defqon! Been rolling tubes since day I got it. Favorite is ken rad 5814, but I have a bunch I haven't tried yet biggrin.gif I'm taking a spare no expense approach with this hopefully. Really appreciate that list

post #1798 of 2592
Quote:
Originally Posted by stupidmop View Post

 Wow, thanks Defqon! Been rolling tubes since day I got it. Favorite is ken rad 5814, but I have a bunch I haven't tried yet biggrin.gif I'm taking a spare no expense approach with this hopefully. Really appreciate that list

No problems, usually people can't justify spending so much on tubes and effort on modding these little amp's (or other cheap one's of the equivalent), but for me these are pretty fun sounding, sure it doesn't beat $500-1000 hp tube amp's, but the fun factor with experimenting with cheaper is extremely rewarding especially after each slight sound improvement, not to mention if it breaks only $50-100 gone and you can use the tubes else where. You make a mistake on a $500-1000 amp, their goes a large wad of money.

post #1799 of 2592
Very nice of you, DefQon, to adopt this thread. Keep up the good work *thumbs up!*
post #1800 of 2592
Quote:
Originally Posted by Evshrug View Post

Very nice of you, DefQon, to adopt this thread. Keep up the good work *thumbs up!*

Cheers, shame I didn't help along earlier in this thread. 

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