Fender SR-6520PD
The SR-6520PD is a six-channel powered mixer from Fender's SR series. Its manual is dated March 1998.
The heart of it is the power amp. Fender's manual rates it at 520 watts at 2 ohms.
There's also DELTACOMP, Fender's adaptive compression system. The manual describes it as a "normalized" patch that can be effectively bypassed by avoiding extreme tone control settings. The manual also notes the power amplifier can be run independently of the rest of the mixer.
Beyond the service documentation, the historical record on the SR-6520PD is thin. It shows up in period listings and manual archives, usually paired with the SR-8520PD. There are few reviews, production figures or contemporary press pieces to draw on. A Reverb listing for one bundled with three Fender Sound Column 3-10 speakers cited an original price of $1,318.09, but it isn't clear whether that figure covers the mixer alone or the bundle. It was a high-output integrated mixer/amp aimed at live sound reinforcement.
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