100W Ultimate Fidelity Amplifier

[sanbadgujar]

Hello Apex sir

Can i make Ax-14 with 4 pair

 

[Dibya]

2SC4793 & 2SA1943 are now obsolete, what can be replacement.

 

[kandimba]

Hello Apex sir

Can i make Ax-14 with 4 pair

 

[sanbadgujar]

Thanks kandimba

PCB indicate not tested,
Is it means more than two pairs on output of AX-14 is not relabel, or othar apex amp ckt. Is Good for high power.

 

[sanbadgujar]

I love AX-14...

Hello wiljj78

Can you have this AX - 14 ver. For fore pair of output. I want to try.

 

[karachay]

Thanks kandimba

PCB indicate not tested,
Is it means more than two pairs on output of AX-14 is not relabel, or othar apex amp ckt. Is Good for high power.

at page 393 there is tested 2 pairs pcb and schematics from alex mm go page 393 and read please.

 

[kandimba]

But this is A33 Amp, not AX14. If you see not tested it does not means, not work. But you should be prepared for surprises. Sometimes they happen...

Regards

 

[yoosefheidari]

2SC4793 & 2SA1943 are now obsolete, what can be replacement.

mje15030/mje15031
mje15032/mje15033

 

[r_jik45]

at page 393 there is tested 2 pairs pcb and schematics from alex mm go page 393 and read please.

Thanks for the info.
Why are there two OUT connectors?

 

[sanbadgujar]

But this is A33 Amp, not AX14. If you see not tested it does not means, not work. But you should be prepared for surprises. Sometimes they happen...

Regards

Thanks kandimna

I already build Ax14 with one pair.
I want high power amp about 200 to 300 watt on 8 ohm load.with good response for low frequencies.
Is it ok to use Ax14 with Extra pair, or use hv23 or b500 for extra tight bass. Please suggest.

 

[kandimba]

You need an amplifier at least with +75VDC 0 -75VDC in order to get the power that you want, HV350 fet powers, B500 or BA1200, they are good for this.

Regards

 

[sanbadgujar]

You need an amplifier at least with +75VDC 0 -75VDC in order to get the power that you want, HV350 fet powers, B500 or BA1200, they are good for this.

Regards

Hello kandimba
Thanks
From your suggested amp which is good for low frequencies. Hv23 or B500

 

[kandimba]

Well, both are very good amplifiers, but B500 are better because you dont have to match the power transistors

Regards

 

[sanbadgujar]

Well, both are very good amplifiers, but B500 are better because you dont have to match the power transistors

Regards

Ok b500 has ic in input section is it good to have ic in amp or transistors is better.
I have 50-0-50 Ac 700VA transformar how many output pair I can use on b500. To achieve 200 to 300 watt on 8 ohm

 

[kandimba]

About IC or transistors depend of your filosofy, B500 is a good amplifire. 50-0-50 VAC it means +69 0 -69VDC. If you use 4 pairs on positive, and 4pairs on negative. You gona get a relyable amplifire.

 

[yoosefheidari]

anyone has a hi-quality low-distortion op-amp buffer as pre-amp for sr100?
i cant't find that original buffer's part so i think an op-amp buffer is better

 

[viki_v2]

Pot Selector, control and relay pcb.

Hello Sir
can you post pcb image of this selector.

Regards

 

[r_jik45]

Pot Selector, control and relay pcb.

What about a simple selector/rotactor to select the active relay/source by switching the 12V line?

 

[KenLam1224]

Sir，I would like to apply this circuit replace that older amplifier circuit，but supply voltage as +-60V，whats the value change of those resistance setup？
thanks and Best regards
🙏🏻🙏🏻🙏🏻🙏🏻

 

[viki_v2]

Pot Selector, control and relay pcb.

What about a simple selector/rotactor to select the active relay/source by switching the 12V line?

that could work