NEW Audio amplifier kits, modules and many others. - Page 53

dubai2000 · 5th November 2009, 02:03 PM

Can no one comment on my question?

Cristi · 5th November 2009, 02:22 PM

the transformer power rating and voltage can have influence on the sound. how ? first, the voltage should be within 2x32 to 2x42V AC. second, the power rating of the transformer, and the rectifier plus capacitors have an influence due to the PSRR (power supply rejection ratio) which is lower at switching amps than at class AB amps.
so, for best performance use the biggest transformer power available and large filtering capacitors. one suitable linear power supply board is the one with 6 pcs 18,000uF caps. (careful!!! has 270 Joules !!!!) this board can supply more than one TA3020 amplifier, somebody use one for 3 amps.

dubai2000 · 5th November 2009, 02:30 PM

Thx - info helps!

pippo1999 · 7th November 2009, 08:48 AM

Hi Christi, i done payment by Paypal with id 3PT66345N8256844V, but your site says 'no order'. Have you received order?. Thanks

Cristi · 7th November 2009, 09:11 AM

i got a payment from ca*****li@dpm.it at 7:40 GMT +8. i assume that is from you. please contact me on pm and we discusse details.

elecres · 7th November 2009, 11:46 AM

hello cristi, I am interested in building 3020 amp .can you tell what i need to build a nice unit including ,power supply,transformer specs. ect. also can it be bridged. thanks peter

hawui1 · 03:15 PM

Hi Cristi,

I issued a payment but also for me the site connexelectronic.com is not listing it

, could you please confirm the order? I left you a PM..

Thanks in advance

,

Ciao !

Cristi · 9th November 2009, 04:30 AM

i got you payment and i process the order. i will reply to pm now.

hawui1 · 9th November 2009, 03:32 PM

Perfect, thanks a lot Cristi

Jack musician · 10th November 2009, 11:20 PM

Hi,Cristi , I received A1000SMPS today and It seemed to be in very good
condition but before to try I have a few questions.
If I input 120Vac with remote connector open, do the supply is in standby mode?
Could I use aux supply to power the remote terminal?
Is it necessary to power up power supply first and apply remote supply
only after power up, or could I connect aux supply (example) permanently
to remote input and put a switch in line with 120vAc input for powering the supply?
What is the voltage and current available from the auxiliary supply;I would
like to connect a 24Vdc fan.
thanks

5th November 2009, 02:22 PM	#522
Cristi diyAudio Member Join Date: Dec 2008 Location: Shenzhen	the transformer power rating and voltage can have influence on the sound. how ? first, the voltage should be within 2x32 to 2x42V AC. second, the power rating of the transformer, and the rectifier plus capacitors have an influence due to the PSRR (power supply rejection ratio) which is lower at switching amps than at class AB amps. so, for best performance use the biggest transformer power available and large filtering capacitors. one suitable linear power supply board is the one with 6 pcs 18,000uF caps. (careful!!! has 270 Joules !!!!) this board can supply more than one TA3020 amplifier, somebody use one for 3 amps. __________________ www.connexelectronic.com complete assembled amplifier and SMPS

7th November 2009, 09:11 AM	#525
Cristi diyAudio Member Join Date: Dec 2008 Location: Shenzhen	i got a payment from ca*****li@dpm.it at 7:40 GMT +8. i assume that is from you. please contact me on pm and we discusse details. __________________ www.connexelectronic.com complete assembled amplifier and SMPS

7th November 2009, 11:46 AM	#526
elecres diyAudio Member Join Date: Aug 2008	ta3020 v3 ? hello cristi, I am interested in building 3020 amp .can you tell what i need to build a nice unit including ,power supply,transformer specs. ect. also can it be bridged. thanks peter

8th November 2009, 02:54 PM	#527
hawui1 diyAudio Member Join Date: Nov 2009 Location: Italy	Orders? Hi Cristi, I issued a payment but also for me the site connexelectronic.com is not listing it , could you please confirm the order? I left you a PM.. Thanks in advance , Ciao ! Last edited by hawui1; 8th November 2009 at 03:15 PM.

9th November 2009, 04:30 AM	#528
Cristi diyAudio Member Join Date: Dec 2008 Location: Shenzhen	i got you payment and i process the order. i will reply to pm now. __________________ www.connexelectronic.com complete assembled amplifier and SMPS


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5th November 2009, 02:03 PM	#521
dubai2000 diyAudio Member Join Date: Apr 2008	Can no one comment on my question?

5th November 2009, 02:30 PM	#523
dubai2000 diyAudio Member Join Date: Apr 2008	Thx - info helps!

7th November 2009, 08:48 AM	#524
pippo1999 diyAudio Member Join Date: Oct 2009	Hi Christi, i done payment by Paypal with id 3PT66345N8256844V, but your site says 'no order'. Have you received order?. Thanks

9th November 2009, 03:32 PM	#529
hawui1 diyAudio Member Join Date: Nov 2009 Location: Italy	Perfect, thanks a lot Cristi

10th November 2009, 11:20 PM	#530
Jack musician diyAudio Member Join Date: Dec 2007	Hi,Cristi , I received A1000SMPS today and It seemed to be in very good condition but before to try I have a few questions. If I input 120Vac with remote connector open, do the supply is in standby mode? Could I use aux supply to power the remote terminal? Is it necessary to power up power supply first and apply remote supply only after power up, or could I connect aux supply (example) permanently to remote input and put a switch in line with 120vAc input for powering the supply? What is the voltage and current available from the auxiliary supply;I would like to connect a 24Vdc fan. thanks

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