SMSL SA-S3 - Help required

Status
Not open for further replies.
SMSL SA-S3 help required

ok so I built a party blaster from some 12mm ply, a couple of moped lithium batteries, a couple of high efficiency Tannoy dual conc. drivers and a cheapo Lepai 2020 amp

20141231_151440_zps56cadf99.jpg


It works great, batteries last over 12hrs, its small and is really loud too, but the Lepai amp is letting it down as its rather harsh on the ears....so I bought a SMSL SA-S3 to replace it but the gain on the SA-S3 is only about half that of the Lepai 2020 and its just not loud enough

so I opened up the SMSL amp so I could change out either the input or feedback resistors and I've come unstuck!...originally I thought the fb resistors were R8 and R9 but I changed them out and there was no effect on the gain of the amp. ...

can anyone on this forum help me double the gain of this SA-S3 amp so I can use it with my samsung mobile? ...I also want to avoid using a preamp as its more cost and hassle. ...I know the SA-S3 will come up with the goods if I can reset its gain....see pic of the circuit board attached


20141231_151348_zpsa26f93ab.jpg
 
Status
Not open for further replies.