solderdude
Grand Contributor
18V into 64 ohm = 5W.
Only 0.32A is required.
To reach those levels with the SP400 and A90 you would need to drive the Susvara balanced though, the LA90 can do this using the TRS jack.
Both the Topping and SP400 offer more versatility and do not require a speaker to headphone connector and are cheaper.
Only 0.32A is required.
To reach those levels with the SP400 and A90 you would need to drive the Susvara balanced though, the LA90 can do this using the TRS jack.
Both the Topping and SP400 offer more versatility and do not require a speaker to headphone connector and are cheaper.