150w amp from Edmund Wong
hello,
Is there someone familiar with the 150w amp from E.Wong? It uses op-amp (LM301) at the input & 2SA1216/SC2922. The main amp pcb is available at Quiapo. I have assembled 3 units and I want to increase the supply voltage to about +/-90~100Vdc also to increase the power output but I don't have any idea yet about biasing to hi power. I had only tried replacing o/p trannies using MJ15022/23.
Had anybody done modifications on this already?
Hoping for your assistance. Thanks!
Tronblitz
hello,
Is there someone familiar with the 150w amp from E.Wong? It uses op-amp (LM301) at the input & 2SA1216/SC2922. The main amp pcb is available at Quiapo. I have assembled 3 units and I want to increase the supply voltage to about +/-90~100Vdc also to increase the power output but I don't have any idea yet about biasing to hi power. I had only tried replacing o/p trannies using MJ15022/23.
Had anybody done modifications on this already?
Hoping for your assistance. Thanks!
Tronblitz
here are some links,
http://www.qscaudio.com/support/technical_support/schems1.htm
http://www.crownaudio.com/gen_htm/legacy/legacamp.htm
http://www.crestaudio.com/schematics/
http://www.yorkville.com/default.asp?p1=6&p2=121&p_id=116
http://www.audio-circuit.dk/
http://www.jblproservice.com/navigation/pdf_nav_tech.html
http://bryston.com/BrystonSite05/BrystonDocs.html
http://www.pssaudio.com/indexuk.php?rubrique=ver0
http://www.qscaudio.com/support/technical_support/schems1.htm
http://www.crownaudio.com/gen_htm/legacy/legacamp.htm
http://www.crestaudio.com/schematics/
http://www.yorkville.com/default.asp?p1=6&p2=121&p_id=116
http://www.audio-circuit.dk/
http://www.jblproservice.com/navigation/pdf_nav_tech.html
http://bryston.com/BrystonSite05/BrystonDocs.html
http://www.pssaudio.com/indexuk.php?rubrique=ver0
@skyjammer,
sir skyjammer as in the other local forum philmusic? I'll give you a call today.
OT. just plugg'in www.philmusic .com
www.electronicslab.com.ph.
Regards,
audiomachines
sir skyjammer as in the other local forum philmusic? I'll give you a call today.
OT. just plugg'in www.philmusic .com
www.electronicslab.com.ph.
Regards,
audiomachines
tronblitz
The 150W amp from electronic digest(edmond Wong) is ok at +-65vdc but if you increase the power supply to +-90 to 100 you have to recompute the dropping resistor for the zener, and also use driver transistors with higher capacity.But even if you do that the amp will still be very fragile because it has no built VI limiters.It might be better to do the Super leach amp,with proper modifications you can use it up to +-140vdc but the because it is Class AB the drawback is HEAT.Or you can make a Class H amp(QSC RMX 2450 clone) less heat.
The 150W amp from electronic digest(edmond Wong) is ok at +-65vdc but if you increase the power supply to +-90 to 100 you have to recompute the dropping resistor for the zener, and also use driver transistors with higher capacity.But even if you do that the amp will still be very fragile because it has no built VI limiters.It might be better to do the Super leach amp,with proper modifications you can use it up to +-140vdc but the because it is Class AB the drawback is HEAT.Or you can make a Class H amp(QSC RMX 2450 clone) less heat.
engel dela pena said:pa600
good day to all
worth po ba for bass
ang pa 600?
may pcb design po ba available?
Musta boss... gusto po niyo ba ng circuit ng Magus? i have here circuit from Magus Model PO-800 500watts @8ohms.. Maganda ito gamitin sa bass pero ang problema nito.. pag hinde branded ang speaker gamitim siguradong patay ang speaker mo.. hehehe.. amp voltage rating 100v-0-100v Vdc.. +/- .... txt mo lang ako sa no. ito 09177183891.. the circuit is for sale.. i have one here assembly with out power tranis.. and the oher one is fully working.. i have no time to finish assembly my clone magus..
Re: KTM-12 driver for MT-122 enclosure (modified)
Sa inyo pala yung mt122 na modified.. KTM-12 is also im using my jbl 722 clone.. ang ganda ng performance even at hard clipping ng k6 amp... walang problema.. im using it for two years from now... and the KTM-12 is still intact..
dec0der said:@ audiomachines
hi, do you think konzert ktm-12 driver will sound good mounted on this kind of enclosure (mid-high)?
http://www.speakerplans.com/index.php?id=mt102
thanks in advance.
Sa inyo pala yung mt122 na modified.. KTM-12 is also im using my jbl 722 clone.. ang ganda ng performance even at hard clipping ng k6 amp... walang problema.. im using it for two years from now... and the KTM-12 is still intact..
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