My new amplifier:)

whee · 11th May 2004, 11:03 PM

What do you guys think of my new amplifier?

Some specs:

2x80W 8 Ohm, (Smartkit )
Velleman speaker protection
800VA Toroid
4x10000uF

I use a VERY cheap Eltax AVR-280 Reciever as preamp. (modded)

The next step is to add 3 more channels. This will then be my heart in my (almost) selfmade home theatre system.

Greg Erskine · 12th May 2004, 01:29 AM

Great job. How does it sound?

Is that your handkerchief bolted to the top of the toriod?

whee · 12th May 2004, 01:43 AM

It sounds great! I love 2n3055

I couldn't find the original top to the toroid, so a just had to use a bit of 4mm alu...... Not quite as nice, but it works

tpenguin · 12th May 2004, 03:38 AM

Interesting heatsinking. How well does it handle the dissipation at full load (~80W sine wave output)? It's a very nice-looking amp. How does it sound?

sith · 12th May 2004, 06:25 PM

Nice little beast. 80W sine? Out of 3055?When can we expect to see its schematics?

destroyer X · 12th May 2004, 07:50 PM

Very happy to see something alike the board scratched in squares, i have been using since 1970!.... in Normay!... right now there is my "fingerprint"!... no matter if do it after read my "New and old way to assemble electronics" or not.... i am dancing with hapiness to see them in your pretty amp.

Music is "I feel good!"

Carlos

destroyer X · 13th May 2004, 12:57 PM

Please, if you can, send it to me, or place it.

Carlos

whee · 14th May 2004, 09:10 PM

This is a kit from smartkit denmark, and it isn't 80w.(typingerror)

This is the specs: 60W/8Ohm or 80W/4Ohm (+-40v) (i use +-48v)

But anyway, i have made an ampilfier i'm satisfied with. Watts isn't the only thing to consider anyway.

I compered it with my brother's denon 1604, and we both simply loved the sound i this one. Good "old fasion" sound

K-amps · 14th May 2004, 09:47 PM

Quote:

Originally posted by whee
It sounds great! I love 2n3055

I built a couple of amps using the 3055. Everything about those kits was against conventional wisdom, like it had very low feedback, quasi-complementary OP stage and then the 3055 themselves...

But I tell you that 50w amp sounded sweet in the midbass and lower mids.

destroyer X · 15th May 2004, 03:10 PM

"We" want to see schematics "Whee", if you can not, "we" will fell bad....but "we" will forgive your (hahaha)

Carlos

11th May 2004, 11:03 PM	#1
whee diyAudio Member Join Date: Jan 2004 Location: Oslo	My new amplifier:) What do you guys think of my new amplifier? Some specs: 2x80W 8 Ohm, (Smartkit ) Velleman speaker protection 800VA Toroid 4x10000uF I use a VERY cheap Eltax AVR-280 Reciever as preamp. (modded) The next step is to add 3 more channels. This will then be my heart in my (almost) selfmade home theatre system.

12th May 2004, 01:29 AM	#2
Greg Erskine diyAudio Member Join Date: Jan 2002 Location: Sydney/Australia	Great job. How does it sound? Is that your handkerchief bolted to the top of the toriod? __________________ Greg Erskine

12th May 2004, 07:50 PM	#6
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife - Brasil Northeast	I saw the boards i done Very happy to see something alike the board scratched in squares, i have been using since 1970!.... in Normay!... right now there is my "fingerprint"!... no matter if do it after read my "New and old way to assemble electronics" or not.... i am dancing with hapiness to see them in your pretty amp. Music is "I feel good!" Carlos __________________ Try to build an amplifier folks ... it is pure adrenaline!

13th May 2004, 12:57 PM	#7
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife - Brasil Northeast	Can i see schematics? Please, if you can, send it to me, or place it. Carlos __________________ Try to build an amplifier folks ... it is pure adrenaline!

15th May 2004, 03:10 PM	#10
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife - Brasil Northeast	Hello dear friend Whee "We" want to see schematics "Whee", if you can not, "we" will fell bad....but "we" will forgive your (hahaha) Carlos __________________ Try to build an amplifier folks ... it is pure adrenaline!


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12th May 2004, 01:43 AM	#3
whee diyAudio Member Join Date: Jan 2004 Location: Oslo	It sounds great! I love 2n3055 I couldn't find the original top to the toroid, so a just had to use a bit of 4mm alu...... Not quite as nice, but it works

12th May 2004, 03:38 AM	#4
tpenguin diyAudio Member Join Date: Dec 2003 Location: Atlanta, GA, US	Interesting heatsinking. How well does it handle the dissipation at full load (~80W sine wave output)? It's a very nice-looking amp. How does it sound?

12th May 2004, 06:25 PM	#5
sith diyAudio Member Join Date: Nov 2003 Location: Split	Nice little beast. 80W sine? Out of 3055?When can we expect to see its schematics?

14th May 2004, 09:10 PM	#8
whee diyAudio Member Join Date: Jan 2004 Location: Oslo	This is a kit from smartkit denmark, and it isn't 80w.(typingerror) This is the specs: 60W/8Ohm or 80W/4Ohm (+-40v) (i use +-48v) But anyway, i have made an ampilfier i'm satisfied with. Watts isn't the only thing to consider anyway. I compered it with my brother's denon 1604, and we both simply loved the sound i this one. Good "old fasion" sound

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