Data sheet here -
TDA1554Q
These are new and purchased for another project. If you need a cheap, reasonable power chip for moderate fidelity applications, these are a good choice. They can run off a single-ended supply range of 6-18VDC and have minimal heat sink requirements. They are typically used in an automotive headunit. There are at least 20 in the tube.
$24 shipped / USA 48
Email or PM.

TDA1554Q
These are new and purchased for another project. If you need a cheap, reasonable power chip for moderate fidelity applications, these are a good choice. They can run off a single-ended supply range of 6-18VDC and have minimal heat sink requirements. They are typically used in an automotive headunit. There are at least 20 in the tube.
$24 shipped / USA 48
Email or PM.