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Roll Call: Who's building, built, or thinking of building a beta22? - Page 204

post #3046 of 3168
Quote:
Originally Posted by DefQon View Post

Yeah the thing is, along with the other boards I have lying around I will probably never get around to building it. My balanced b22 is on the bench just waiting to do case work but cbf, completed half of my KGSSHV off board version, got 3 tube amp's to finish restoring and rebuilding, 3 amps to re-cap and service...

you have so little work to do...eek.gif

post #3047 of 3168
Quote:
Originally Posted by DefQon View Post

I'll second the Nelson amps line, got some boards for 3 model of the F series coming my way soon. 

the FW designs are simple but require some chassis work/heat sinking cosiderations. i've had a F5 driving FR Fostex and even smaller ATC monitors for years now and have no desire to build another speaker amp anytime soon - just speakers. sounds great driving my K701 too.
post #3048 of 3168
Quote:
Originally Posted by Greed View Post

This design is top-notch even though it is dated. It still competes very formidably within the <$1K price range. 

 

I'm surprised nobody picked you up on this. Care to elaborate?

post #3049 of 3168

Yeah Greed, what you trying to say - You trying to start a fight?  wink_face.gif

post #3050 of 3168
Quote:
Originally Posted by joeyjojo View Post

 

I'm surprised nobody picked you up on this. Care to elaborate?

 

Honestly, a fully decked B22 is still one of the smoothest sounding SS amps I've heard <$1K. It competes very well with some of the other production amps out there like the Mjolnir, Soloist, Violectric, etc. You start to hear some of its flaws and dated designs when you hike above that price range. For example, the first time I heard the B22, I thought this was it. Great sound, good power, and you can design it the way you want = Perfect, right? Well, that is true until you stretch your budget a bit further and delve into the 1500-3000 price range. Now you have some stiff competition, with many designers that know exactly what Hi-End enthusiasts want, and plenty of what they don't want. Now that I've heard some of the higher end SS, Tube, and hybrid amps - the B22 sounds good instead of great. Still a very capable design and product, but the B22 isn't the ceiling by any means. 

 

When you factor in how much it costs to design a 4-Board, 2 PSU, full loaded (meaning premium caps, res, rca's, pot, etc.) you are talking about $1200+. I know my B22 has cost me atleast that much, and I haven't invest everything I can into it. After buying the GS-X MK II, I don't know if I will. It seems like a fruitless battle to do so. 

 

I'm not saying by any means the B22 is bad - no way - it is a good amp and if I had to do it over again, I'd probably just build a 2-Channel, 2 PSU design and be done with it. I can't tell you if the 4-Board makes a difference in sound to me because I hardly remember what a 3 channel sounds like... In hindsight, it would be more cost effective and a better value for sure, but that's just the way it goes. I may sell my B22 or keep it, but it does bring you a bit of self-gratification that I (you) built it from the ground up. If you don't have the skills, well then you are still getting a really good amp. 

 

Quote:
Originally Posted by preproman View Post

Yeah Greed, what you trying to say - You trying to start a fight?  wink_face.gif

 

I know, I speak fighting words don't I? 


Edited by Greed - 8/12/13 at 12:38pm
post #3051 of 3168
Quote:
Originally Posted by Greed View Post

 

Honestly, a fully decked B22 is still one of the smoothest sounding SS amps I've heard <$1K. It competes very well with some of the other production amps out there like the Mjolnir, Soloist, Violectric, etc. You start to hear some of its flaws and dated designs when you hike above that price range. For example, the first time I heard the B22, I thought this was it. Great sound, good power, and you can design it the way you want = Perfect, right? Well, that is true until you stretch your budget a bit further and delve into the 1500-3000 price range. Now you have some stiff competition, with many designers that know exactly what Hi-End enthusiasts want, and plenty of what they don't want. Now that I've heard some of the higher end SS, Tube, and hybrid amps - the B22 sounds good instead of great. Still a very capable design and product, but the B22 isn't the ceiling by any means. 

 

When you factor in how much it costs to design a 4-Board, 2 PSU, full loaded (meaning premium caps, res, rca's, pot, etc.) you are talking about $1200+. I know my B22 has cost me atleast that much, and I haven't invest everything I can into it. After buying the GS-X MK II, I don't know if I will. It seems like a fruitless battle to do so. 

 

I'm not saying by any means the B22 is bad - no way - it is a good amp and if I had to do it over again, I'd probably just build a 2-Channel, 2 PSU design and be done with it. I can't tell you if the 4-Board makes a difference in sound to me because I hardly remember what a 3 channel sounds like... In hindsight, it would be more cost effective and a better value for sure, but that's just the way it goes. I may sell my B22 or keep it, but it does bring you a bit of self-gratification that I (you) built it from the ground up. If you don't have the skills, well then you are still getting a really good amp. 

 

 

 

these considerations are obviously personal. i never heard the gsx-mkII but i like the sound of the beta

about the old design, exist vintage amplifiers that today sound very good

post #3052 of 3168
Quote:
Originally Posted by alota View Post
these considerations are obviously personal. i never heard the gsx-mkII but i like the sound of the beta

about the old design, exist vintage amplifiers that today sound very good

Agree.  IMO that topic is not related to this thread's forum/title/subject matter, DIY amps and specifically building β22s.  Maybe experiences/suggestions WRT β22 build specifics (e.g. 2-,3-,4-channel, dual-mono, etc) are though.

 

Now comes something that likewise belongs in a different thread (e.g. "Which high-end DIY amp should I build?").  Though β22 design may be a few years old haven't seen a DIY dynamic headphone reference amp design come along that supplants its performance, drive capability, availability, approachability & support.  If there had I would have considered building it instead of sticking with β22 as my "end game" (w/HE-500s btw).

post #3053 of 3168
Quote:
Originally Posted by cfcubed View Post

Agree.  IMO that topic is not related to this thread's forum/title/subject matter, DIY amps and specifically building β22s.  Maybe experiences/suggestions WRT β22 build specifics (e.g. 2-,3-,4-channel, dual-mono, etc) are though.

 

Now comes something that likewise belongs in a different thread (e.g. "Which high-end DIY amp should I build?").  Though β22 design may be a few years old haven't seen a DIY dynamic headphone reference amp design come along that supplants its performance, drive capability, availability, approachability & support.  If there had I would have considered building it instead of sticking with β22 as my "end game" (w/HE-500s btw).

Here you go:

 

 

post #3054 of 3168
Quote:
Originally Posted by preproman View Post

Here you go:

 

 

bad boydeadhorse.gif

post #3055 of 3168
Quote:
Originally Posted by fishski13 View Post


the FW designs are simple but require some chassis work/heat sinking cosiderations. i've had a F5 driving FR Fostex and even smaller ATC monitors for years now and have no desire to build another speaker amp anytime soon - just speakers. sounds great driving my K701 too.

That's true. I've got a good power amp chassis that I was going to use for my KGSSHV build but probably not anymore as I wanted everything in a single chassis but not the case as the trafo's and ps board will have to be in a second enclosure. 

 

I was thinking of housing one of the Pass amp's in it but there will be a lot of empty space.

 

Funny thing you brought up the F5, have exactly one set of boards for a F5 build. 

post #3056 of 3168
Quote:
Originally Posted by alota View Post

these considerations are obviously personal. i never heard the gsx-mkII but i like the sound of the beta

about the old design, exist vintage amplifiers that today sound very good

 

Where was I unclear it was my opinion? I used "I" in almost every sentence. Sharing my opinion, nothing else. You obviously like your B22, that's great, I do too. But I don't need to remind people that its your opinion whenever they don't agree with yours. I was answering a question asked, that is all. 

 

Regarding old design - Vintage does sound nice, but so does modern. Don't want to further "derail" this thread since that is what my answer has lead to I guess. 

 

Quote:
Originally Posted by cfcubed View Post

Agree.  IMO that topic is not related to this thread's forum/title/subject matter, DIY amps and specifically building β22s.  Maybe experiences/suggestions WRT β22 build specifics (e.g. 2-,3-,4-channel, dual-mono, etc) are though.

 

Now comes something that likewise belongs in a different thread (e.g. "Which high-end DIY amp should I build?").  Though β22 design may be a few years old haven't seen a DIY dynamic headphone reference amp design come along that supplants its performance, drive capability, availability, approachability & support.  If there had I would have considered building it instead of sticking with β22 as my "end game" (w/HE-500s btw).

 

 

Was answering a question, I think that is relevant enough, don't you?


Edited by Greed - 8/13/13 at 1:16pm
post #3057 of 3168
Quote:
Originally Posted by Greed View Post

 

Where was I unclear it was my opinion? I used "I" in almost every sentence. Sharing my opinion, nothing else. You obviously like your B22, that's great, I do too. But I don't need to remind people that its your opinion whenever they don't agree with yours. I was answer a question asked, that is all. 

 

Regarding old design - Vintage does sound nice, but so does modern. Don't want to further "derail" this thread since that is what my answer has lead to I guess. 

 

easy man. like your, this was just my opinion not a polemic.

in the end is always a matter of taste and combinations. my apologies if i seemed argumentative

post #3058 of 3168
Is GS-X MKII that much better than MKI or beta22? I tried the MKI for a while and still prefer my beta22, I have not heard/tried MKII.
post #3059 of 3168

Well, here goes, I have managed to gather together enough parts to start my first B22 build.

 

Actually, while I was at AMB's site I also ordered a y1 & y2 kit because I figured a B22 should be fed by something a little better that my Iphone5.

 

I will start with a 3 channel configuration, however i am second guessing that, I may end up doing a 4 channel even though i do not have a source to take full advantage of it, some day I might.

 

I know the  B22 was designed to be build with non " boutique" caps, however I happen to have a collection of Elna silmic II caps on hand that i could use, the larger power rail caps i have are 1000uf 50v rather than the

 

recommended 470uf, outside of PS issues, are there any reasons i shouldn't use these?

 

Waiting on a mouser order right now, but I am hoping to start populating the boards today if work schedule allows :darthsmile:.

post #3060 of 3168

I got a good start on the build up. I should probably take some pics, but i cant get too excited about that as there are already tons of images of circuit boards in various states of completion.

 

I have soldered most of the diodes, as well as all of the constant current devices and transistors.

 

all of the resistors, pots and caps should be here tomorrow so hopefully i can start the initial set up and testing soon.

 

I also received my last order from AMB, that included the S22 PS board and  both the y1&y2 boards and giblets. So next pressing issue is to order all the requisite parts for the DAC. 

 

Now that I have the boards and am asembeling them i find i am more excited about how i am going to house them. I have a few plans floating around in my feeble brain and i hope i can make one look as cool as i picture it.

 

I want to make the enclosure as small as possible without hampering the amp due to heat concerns.

 

another thing i have been pondering is what kind of attenuator i will use. I was originally just going to use the 50k blue velvet pot, but after looking at the "light speed" photo-resistant scheme i am thinking about doing my own unique take on a contact-less solution.  

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