A Directory of Apex Audio Amplifiers

xrk971 · 2016-08-13 7:37 pm

ashok said:
Start a new thread with the name
Directory of Apex Audio Amplifiers-Part 2

That maybe the best solution. It might take at least another year before Apex Audio makes 50 more design

Hadighorbani · 2016-08-13 8:54 pm

xrk971 said:
That maybe the best solution. It might take at least another year before Apex Audio makes 50 more design

Hi
how are you?
every thing is ok with power amp for you?

i can find 2n3055 TO3 original transistor.
can you help me for crate an good sound amp with this transistors please ?
do you have tube amp too ?
are you test tube amps ?
what about them ?
thank you

xrk971 · 2016-08-13 9:02 pm

Hadighorbani said:
Hi
how are you?
every thing is ok with power amp for you?
i can find 2n3055 TO3 original transistor.
can you help me for crate an good sound amp with this transistors please ?
do you have tube amp too ?
are you test tube amps ?
what about them ?
thank you

You should ask Apex Audio in his thread. I don't know this transistor but looks like good high current PNP so two could be used in a quasi complementary setup. Do a search for quasi complementary amp.

I don't have any tube amps.

Hadighorbani · 2016-08-13 10:25 pm

xrk971 said:
You should ask Apex Audio in his thread. I don't know this transistor but looks like good high current PNP so two could be used in a quasi complementary setup. Do a search for quasi complementary amp.

I don't have any tube amps.

no
i do not search

apexaudio · 2016-08-14 12:43 am

Hadighorbani said:
Hi
how are you?
every thing is ok with power amp for you?
i can find 2n3055 TO3 original transistor.
can you help me for crate an good sound amp with this transistors please ?
do you have tube amp too ?
are you test tube amps ?
what about them ?
thank you

http://www.diyaudio.com/forums/solid-state/243345-current-dumping-amplifier.html
http://www.diyaudio.com/forums/solid-state/236256-retro-amp-50w-single-supply.html
http://www.diyaudio.com/forums/solid-state/167394-quasi-amplifier-beginners.html

xrk971 · 2016-08-14 1:46 am

I missed the AX6 in this thread directory.

ashok · 2016-08-14 4:12 am

xrk971 said:
That maybe the best solution. It might take at least another year before Apex Audio makes 50 more design

You could even just use:
Directory of Apex Audio Amplifiers-continued

Hadighorbani · 2016-08-20 2:46 pm

apexaudio said:
http://www.diyaudio.com/forums/solid-state/243345-current-dumping-amplifier.html
http://www.diyaudio.com/forums/solid-state/236256-retro-amp-50w-single-supply.html
http://www.diyaudio.com/forums/solid-state/167394-quasi-amplifier-beginners.html

thank you so much
i have old and stock 2n3055
i will use 4 par for 80 watt
is it Enough؟
how much voltage?

Hadighorbani · 2016-08-21 6:23 am

Hi xrk
what about protection for FH9 ?

xrk971 · 2016-08-21 7:46 am

Hadighorbani said:
Hi xrk
what about protection for FH9 ?

Maybe try this?

457759d1420567023-100w-ultimate-fidelity-amplifier-apex-simple-protect.jpg

Hadighorbani · 2016-08-22 5:41 am

xrk971 said:
Maybe try this?

thank you dear but i like it be better than this.
have DC and over curent and short circuit protection. i see before ne555 protection. is it good for this amp?
watt about HX-11 protection bard?
i try to create it too

burnmaster · 2016-10-20 7:21 pm

Hy

My name is Sergey from Bulgaria.

This is my APEX.....great amp.

https://www.youtube.com/watch?v=avdVkQa9sZo

apexaudio · 2016-10-20 8:00 pm

burnmaster said:
Hy

My name is Sergey from Bulgaria.

This is my APEX.....great amp.

https://www.youtube.com/watch?v=avdVkQa9sZo

APEX A40 play dIRE sTRAITS, I like it

Regards

prasi · 2016-10-20 8:06 pm

burnmaster said:
Hy

My name is Sergey from Bulgaria.

This is my APEX.....great amp.

https://www.youtube.com/watch?v=avdVkQa9sZo

nice

, in diy world Apex rules!
reg
Prasi

xrk971 · 2016-10-20 8:18 pm

Burnmaster,
Very nice! Sounds fantastic - what speakers are those? I have been considering repurposing my old Yamaha receiver cabinet for a DIY amp. Did you run into any issue converting the Fischer cabinet? That cannot be the stock toroidal trafo. You have some serious amount of caps in there

apexaudio · 2016-10-20 10:09 pm

Sergey what is this 16 caps in your PSU and what are your speakers?
Regards

xrk971 · 2016-10-21 1:22 am

I think they are Marantz 3-ways if same as these in his shop.

http://www.youtube.com/watch?v=RMVTsY0ZYxI&sns=em

burnmaster · 2016-10-21 8:07 am

xrk971 · 2016-10-21 9:27 am

Are those the stock midrange fabric dome mids and tweeters? Nice work on custom crossover. The cabinet was repurposed and fitted with better drivers. Nice sounding though.

Bobsburger · 2016-11-14 6:34 pm

What are the pros and cons of the SF3.1 vs SB3.1 pre-amps?

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