DIY Class AB SS Amplifiers Top List

[Alchamist]

Hello,

Could you share most popular DIY class AB solid state amplifiers list for diyers? Sometimes we look for it that have been applied and liked by you and qualities accepted by majority.

Could you add more to the list ?

1. The diyAB "Honey Badger"
2. Leach Amp
3. Slewmaster - CFA vs. VFA "Rumble"
4. AMB Lab β24 fully-differential power amplifier
5. Rod Elliot P3A
6. AKSA 55
7. Circlophone© by Elvee
8. MikeB's Symasym
9. David Tilbrook's AEM6000
10. Fetzilla
11. ...
12. ...

My Best

 

[strawa]

1.The diyAB "Honey Badger"
2.Leach Amp
3.Slewmaster - CFA vs. VFA "Rumble"
4.AMB Lab β24 fully-differential power amplifier
5.Rod Elliot P3A
6.AKSA 55
7.Circlophone© by Elvee
8.MikeB's Symasym
9.David Tilbrook's AEM6000
10.Fetzilla
11.Apex FH9 Xrk mode
FH9 - excelent sound, diy friendly!

 

[atupi]

Roender's Fc100


Sent from my iPad using Tapatalk

 

[mbrennwa]

Cubie3 by juma?

 

[djk]

Leach v4.5

 

[evanc]

http://www.diyaudio.com/forums/soli...ple-quasi-complimentary-mosfet-amplifier.html

http://www.diyaudio.com/forums/solid-state/277087-revisiting-some-old-ideas-1970s-ips-ops.html


Second vote for the slewmaster with the spooky input stage.
The quasi is very DIY friendly and sounds great.
I have Vzaichenko's vertical cfa-non switching output stage in my system at he moment and it sounds great. His tubsumo is also a great amp

 

[de Ocampo]

Hello,

Could you share most popular DIY class AB solid state amplifiers list for diyers? Sometimes we look for it that have been applied and liked by you and qualities accepted by majority.

Could you add more to the list ?

1. The diyAB "Honey Badger"
2. Leach Amp [v4.5, Superamp]
3. Slewmaster - CFA vs. VFA "Rumble"
4. AMB Lab [FONT=arial,helvetica]β24 fully-differential power amplifier[/FONT]
5. Rod Elliot P3A
6. AKSA 55
7. Circlophone© by Elvee
8. MikeB's Symasym
9. David Tilbrook's AEM6000
10. Fetzilla
11. Apex FH9 Xrk mode
12. Roenders FC100
13. Cubie3
14. DX Blame
15. VSSA
16. VHex
17. Symef

,

 

[Alchamist]

1. The diyAB "Honey Badger"
2. Leach Amp [v4.5, Superamp]
3. Slewmaster - CFA vs. VFA "Rumble"
4. AMB Lab β24 fully-differential power amplifier
5. Rod Elliot P3A
6. AKSA 55
7. Circlophone© by Elvee
8. MikeB's Symasym
9. David Tilbrook's AEM6000
10. Fetzilla
11. Apex FH9 Xrk mode
12. Roenders FC100
13. Cubie3
14. DX Blame
15. VSSA
16. VHex
17. Symef
18. Quasi's Nmos200
19. Very Simple Quasi Complimentary MOSFET Amp
20. Vzaichenko's Vertical CFA-Non Switching Output Stage
21. Vzaichenko's Tubesumo Amp
22. Vzaichenko's Other Projects !
23. Aspex SR50 and SR200 ( I didn't listen these systems but maybe anybody can share their experience )

 

[astx]

• The diyAB "Honey Badger"
• Leach Amp [v4.5, Superamp]
• Slewmaster - CFA vs. VFA "Rumble"
• AMB Lab β24 fully-differential power amplifier
• Rod Elliot P3A
• AKSA 55
• Circlophone© by Elvee
• MikeB's Symasym
• David Tilbrook's AEM6000
• Fetzilla
• Apex FH9 Xrk mode
• Roenders FC100
• Cubie3
• DX Blame
• VSSA
• VHex
• Symef
• Quasi's Nmos200
• Very Simple Quasi Complimentary MOSFET Amp
• Vzaichenko's Vertical CFA-Non Switching Output Stage
• Vzaichenko's Tubesumo Amp
• Vzaichenko's Other Projects !
• Apex SR50 and SR200 ( I didn't listen these systems but maybe anybody can share their experience )
• Astx - SA2014 BJT (200W@8R, 400W@4R) 8 pairs TTC5200 and TTA1943
• Astx - SA2015 V-MOSFET (70W@8R, 140W@4R) 3 pairs IRFP240 and IRFP9240
• Astx - SA2015 V-MOSFET (100W@8R, 200W@4R) 1 pair IXTH80N20L and IXTH48P20P
• Astx - SA2016 L-MOSFET (70W@8R, 140W@4R) 3 pairs ECX10N20 and ECX10P20
• Astx - SA2016 L-MOSFET (100W@8R, 200W@4R) 3 pairs ECW20N20 and ECW20P20

 

[asuslover]

Rod's p3a should be First...
NAP-140 eBay maybe another amp
Ovation sx and nx

 

[Alchamist]

Rod's p3a should be First...
NAP-140 eBay maybe another amp
Ovation sx and nx

Thank you for all your contributions.I think the list will expand further and very useful for diyers.

1. The diyAB "Honey Badger"
2. Leach Amp [v4.5, Superamp]
3. Slewmaster - CFA vs. VFA "Rumble"
4. AMB Lab β24 fully-differential power amplifier
5. Rod Elliot P3A
6. AKSA 55
7. Circlophone© by Elvee
8. MikeB's Symasym
9. David Tilbrook's AEM6000
10. Fetzilla
11. Apex FH9 Xrk mode
12. Roenders FC100
13. Cubie3
14. DX Blame
15. VSSA
16. VHex
17. Symef
18. Quasi's Nmos200
19. Very Simple Quasi Complimentary MOSFET Amp
20. Vzaichenko's Vertical CFA-Non Switching Output Stage
21. Vzaichenko's Tubesumo Amp
22. Vzaichenko's Other Projects !
23. Apex SR50 and SR200 ( I didn't listen these systems but maybe anybody can share their experience )
24. Astx - SA2014 BJT (200W@8R, 400W@4R) 8 pairs TTC5200 and TTA1943
25. Astx - SA2015 V-MOSFET (70W@8R, 140W@4R) 3 pairs IRFP240 and IRFP9240
26. Astx - SA2015 V-MOSFET (100W@8R, 200W@4R) 1 pair IXTH80N20L and IXTH48P20P
27. Astx - SA2016 L-MOSFET (70W@8R, 140W@4R) 3 pairs ECX10N20 and ECX10P20
28. Astx - SA2016 L-MOSFET (100W@8R, 200W@4R) 3 pairs ECW20N20 and ECW20P20
29. NAP-140
30. Ovation SX and NX

,

​

 

[Alchamist]

But Ovation SX and NX seems Class A , right ?

 

[asuslover]

SX is class A

 

[Gouthama]

Circlophone VS P3A

Hello,

Has anyone built both circlophone and P3A and done some sort of AB testing ?

I am a great fan of Elvee's Circlophone and for me it provided the ultimate music experience with whatever the component I could fill in.

Recently built P3A, but it did not perform as good as Circlophone . I suspect there was some issue with my P3A set up but I did not do much investigation into it. in terms of part count p3A is simpler.

Wanted to check has anyone used both of these amps for long duration and could give their opinion

Thank you!

 

[Bigun]

Not me - but I can advise that preferences are quite subjective. There are people who have built the P3A who love it more than anything else they have tried. Maybe if you are concerned your P3A is not working at it's best you should post into the P3A thread (there's a couple of them around). For me, I built on the P3A concept and devised a new amplifier that I think would be very hard to beat - but it is not that friendly for beginners, it's a more complicated construction because it uses more parts and you need the pcb (you can order cheap from Chinese providers).

TGM8 - an amplifier based on Rod Elliot P3a


You are also comparing Class AB (the P3A) with Class A (sliding bias) - for sure an interesting comparison !

 

[Gouthama]

Not me - but I can advise that preferences are quite subjective. There are people who have built the P3A who love it more than anything else they have tried. Maybe if you are concerned your P3A is not working at it's best you should post into the P3A thread (there's a couple of them around). For me, I built on the P3A concept and devised a new amplifier that I think would be very hard to beat - but it is not that friendly for beginners, it's a more complicated construction because it uses more parts and you need the pcb (you can order cheap from Chinese providers).

TGM8 - an amplifier based on Rod Elliot P3a


You are also comparing Class AB (the P3A) with Class A (sliding bias) - for sure an interesting comparison !

Thank you for your note Bigun. Fully agree that its very subjective matter. Let me dig deep into my p3A set up and also explore TGM8.

Regards
Goutham

 

[asuslover]

I’m interested to build an Class AB amp with 2-3 pairs of power transistors, short circuit/overload protection , maybe speaker protection.
Any suggestions?
Thanks

 

[yoaudio]

I think the list will expand further and very useful for diyers.

1. The diyAB "Honey Badger"
2. Leach Amp [v4.5, Superamp]
3. Slewmaster - CFA vs. VFA "Rumble"
4. AMB Lab β24 fully-differential power amplifier
5. Rod Elliot P3A
6. AKSA 55
7. Circlophone© by Elvee
8. MikeB's Symasym
9. David Tilbrook's AEM6000
10. Fetzilla
11. Apex FH9 Xrk mode
12. Roenders FC100
13. Cubie3
14. DX Blame
15. VSSA
16. VHex
17. Symef
18. Quasi's Nmos200
19. Very Simple Quasi Complimentary MOSFET Amp
20. Vzaichenko's Vertical CFA-Non Switching Output Stage
21. Vzaichenko's Tubesumo Amp
22. Vzaichenko's Other Projects !
23. Apex SR50 and SR200 ( I didn't listen these systems but maybe anybody can share their experience )
24. Astx - SA2014 BJT (200W@8R, 400W@4R) 8 pairs TTC5200 and TTA1943
25. Astx - SA2015 V-MOSFET (70W@8R, 140W@4R) 3 pairs IRFP240 and IRFP9240
26. Astx - SA2015 V-MOSFET (100W@8R, 200W@4R) 1 pair IXTH80N20L and IXTH48P20P
27. Astx - SA2016 L-MOSFET (70W@8R, 140W@4R) 3 pairs ECX10N20 and ECX10P20
28. Astx - SA2016 L-MOSFET (100W@8R, 200W@4R) 3 pairs ECW20N20 and ECW20P20
29. NAP-140
30. Ovation SX and NX
31. PeeCeeBee V4H

 

[Bigun]

most DIYer's have analysis paralysis, this list is going to be a problem for them !

You still missed off my TGM8. It's better than all of them ;-)

 

[yoaudio]

I think the list will expand further and very useful for diyers.

1. The diyAB "Honey Badger"
2. Leach Amp [v4.5, Superamp]
3. Slewmaster - CFA vs. VFA "Rumble"
4. AMB Lab β24 fully-differential power amplifier
5. Rod Elliot P3A
6. AKSA 55
7. Circlophone© by Elvee
8. MikeB's Symasym
9. David Tilbrook's AEM6000
10. Fetzilla
11. Apex FH9 Xrk mode
12. Roenders FC100
13. Cubie3
14. DX Blame
15. VSSA
16. VHex
17. Symef
18. Quasi's Nmos200
19. Very Simple Quasi Complimentary MOSFET Amp
20. Vzaichenko's Vertical CFA-Non Switching Output Stage
21. Vzaichenko's Tubesumo Amp
22. Vzaichenko's Other Projects !
23. Apex SR50 and SR200 ( I didn't listen these systems but maybe anybody can share their experience )
24. Astx - SA2014 BJT (200W@8R, 400W@4R) 8 pairs TTC5200 and TTA1943
25. Astx - SA2015 V-MOSFET (70W@8R, 140W@4R) 3 pairs IRFP240 and IRFP9240
26. Astx - SA2015 V-MOSFET (100W@8R, 200W@4R) 1 pair IXTH80N20L and IXTH48P20P
27. Astx - SA2016 L-MOSFET (70W@8R, 140W@4R) 3 pairs ECX10N20 and ECX10P20
28. Astx - SA2016 L-MOSFET (100W@8R, 200W@4R) 3 pairs ECW20N20 and ECW20P20
29. NAP-140
30. Ovation SX and NX
31. TGM8 - an amplifier based on Rod Elliot P3a
32. PeeCeeBee V4H