There is a good deal of friendly competition within the offices, which we feel helps to make both brands better.
A: The country of origin is usually specified on the back panel of your SWR product but, in general, the Professional Series products are built in Corona, California; the Working Pro and Acoustic Series products are built in Ensenada, Baja California, Mexico; and the LA Series is manufactured in Indonesia.
For example: S/L C 12357 S/L would indicate the model Super Lead 100 watt C indicates the year 1971 12357 is the serial number. Starting in 1993 until 1997 Marshall switched over to a new serial number system.Built by hand in England, every amplifier is soak-tested before it leaves the factory to serve a new generation of musicians.On this site you'll find product information, technical specifications, and troubleshooting information. General questions Amplifiers Speakers Features Connection Service A: FMIC purchased SWR to increase their offerings to the bass community and to offer dealers more choices when stocking their stores. If you don't see your question addressed below, click here to email your question to SWR.