Hi,
I'm considering about trading one of the bass amp I don't use with a David Eden World Tour 500 Highway with a blown power amp and/or power supply.
Looking at the schematic I would say that the preamp needs:
I was thinking to accept the deal and invest part of the difference I'll get in euros to buy:
this power amp ( Top Iraud2000 Class D Amplifier Board 2000W Irs2092s IRFB4227 7G23A-22UH | eBay ) with the possibility to upgrade in future installing more supply capacitors.
Dimensions: 184 x 117 x h70 mm
and this power supply ( 2000W ad alta efficienza LLC Soft Interruttore AMPLIFICATORE AUDIO POWER SUPPLY BOARD | eBay ) because it can supply all needed voltages (heater supply is a bit low with that 100 mA, I can probably ask for a customization or just install a small toroidal just for that)
Dimensions: 207 x 100 x h45 mm
This way I will have a very light "WT-1200" bass amplifier with just 149 euros more. I'll never use that power, but I've a 4x10 speaker that can handle that power continuously and the price is very good.
Do you have some suggestions?
Thanks in advance
I'm considering about trading one of the bass amp I don't use with a David Eden World Tour 500 Highway with a blown power amp and/or power supply.
Looking at the schematic I would say that the preamp needs:
- dual 15Vdc power supply for the opamps (bypassing the quad of 5W dropping resistors, so reducing the heat inside the amp)
- +12Vdc for the heaters of the 12ax7
- dual 70Vdc for the 12ax7
I was thinking to accept the deal and invest part of the difference I'll get in euros to buy:
this power amp ( Top Iraud2000 Class D Amplifier Board 2000W Irs2092s IRFB4227 7G23A-22UH | eBay ) with the possibility to upgrade in future installing more supply capacitors.
Dimensions: 184 x 117 x h70 mm
and this power supply ( 2000W ad alta efficienza LLC Soft Interruttore AMPLIFICATORE AUDIO POWER SUPPLY BOARD | eBay ) because it can supply all needed voltages (heater supply is a bit low with that 100 mA, I can probably ask for a customization or just install a small toroidal just for that)
Dimensions: 207 x 100 x h45 mm
This way I will have a very light "WT-1200" bass amplifier with just 149 euros more. I'll never use that power, but I've a 4x10 speaker that can handle that power continuously and the price is very good.
Do you have some suggestions?
Thanks in advance
I've asked in the "Class D" section of the forum, and the modules seem ok, apart from the need to heat sink the driver because it is directly connected to power Mosfets.
I will give them a try, maybe I decline that amp and rebuild another tube-preamp classC-poweramp bass amp.
I will give them a try, maybe I decline that amp and rebuild another tube-preamp classC-poweramp bass amp.