I have bought a Pass A3 kit from China that requires a soft start switch installed but am not technically knowledgeable enough to know how to wire it up.
I have attached photo and commentary from where I bought it from, it talks of it requiring a double switch and has two switches marked on the board.
And I am also unsure of WHERE in circuit this gets installed, before the transformer in other words direct 240v straight from wall?
Sorry for my ignorance any help greatly appreciated. I have successfully built some wonderful speakers that sounds absolutely amazing but the amp stuff if beyond my current knowledge.
ntroduction:
It adopts advanced double-sided thick gold-plated 2.0mm PCB, copper foil thickness 75U, high current wiring, 30A high current contact relay and other components assembly, no need to connect transformer, and can be directly soldered to the IEC socket with fuse, no need for punching installation. Small size, can make reasonable use of the chassis space. Of course, it is also possible to connect additional leads.
Product Features:
Prevents the power amplifier from being affected by large currents on the components at the moment of power-on. The delay time is about 1 second. After the power switch is turned on, the switch no longer passes a large current. When the switch is turned on, the switch only loads the small current of the relay coil. When the power amplifier or other equipment uses a large current, it is completely burdened by the 30A relay. The durability of the switch and the limitation of the switch can be passed through a larger current.
Note 1: The “Double Power Switch” must be used, and the single switch cannot be used. The power switch current is up to 3A.
Input voltage: AC 100---250V
Size: 74mm*61mm
I have attached photo and commentary from where I bought it from, it talks of it requiring a double switch and has two switches marked on the board.
And I am also unsure of WHERE in circuit this gets installed, before the transformer in other words direct 240v straight from wall?
Sorry for my ignorance any help greatly appreciated. I have successfully built some wonderful speakers that sounds absolutely amazing but the amp stuff if beyond my current knowledge.
ntroduction:
It adopts advanced double-sided thick gold-plated 2.0mm PCB, copper foil thickness 75U, high current wiring, 30A high current contact relay and other components assembly, no need to connect transformer, and can be directly soldered to the IEC socket with fuse, no need for punching installation. Small size, can make reasonable use of the chassis space. Of course, it is also possible to connect additional leads.
Product Features:
Prevents the power amplifier from being affected by large currents on the components at the moment of power-on. The delay time is about 1 second. After the power switch is turned on, the switch no longer passes a large current. When the switch is turned on, the switch only loads the small current of the relay coil. When the power amplifier or other equipment uses a large current, it is completely burdened by the 30A relay. The durability of the switch and the limitation of the switch can be passed through a larger current.
Note 1: The “Double Power Switch” must be used, and the single switch cannot be used. The power switch current is up to 3A.
Input voltage: AC 100---250V
Size: 74mm*61mm
Attachments
Good evening dear forum colleagues. Can you tell me if I can use IRFP260N or IRFP460N in a Pass a3? Thank you!!
if you need to ask, then most likely you'll not be able to solve possible problems ...... 260 are having 4 times xconductance of 240, same as 4 times interelectrode capacitances
460 is having double xconductance of 240, while capacitances are 3.5 times
originally used IRFP240 are cheap enough, so better to use them
but, if you already have plentiful of 460, use those ...... price being slightly darker sound, but less possibility of instability than in case of using 260
460 is having double xconductance of 240, while capacitances are 3.5 times
originally used IRFP240 are cheap enough, so better to use them
but, if you already have plentiful of 460, use those ...... price being slightly darker sound, but less possibility of instability than in case of using 260