To list here is a fully functioning Pioneer SX 1010 SUB tone controls for the bass and treble. These are the OUTER controls (sub tone controls). The two INNER ones are the standard bass and treble controls. Note the standard inner treble control rod is broke. If you need the other sub controls....well there you go... Switches and pots work and operate smooth. Comes with the correct top housing as well and the screwes. Sent off with care via us mail. Lot of metal here. This may work with other Pioneer receivers of this era. Should work for the Pioneer sx-939 as well. Old and sold as is please. Great shape and value..

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