My EXH Small Stone Phaser Reissue (Rev G) 6dB louder engaged than it is in bypass

I have found some old schematics online and I am wondering if this newest re-issue uses a 30kΩ from the input buffer and a 27kΩ resistor from the allpass filters summed and connected to a a 470kΩ to ground at the output?

If this is true I should be able to simply tack on another resistor across the 470kΩ to reduce the output level.

If there is an output buffer (opamp etc) then I could change the gain there as well.

Any insights would be helpful here.

Thanks.