You've got 1 12" DXR so its a no brainer. Get another one and use the stereo link function. three cahnnel mixer too.
Stop reading reviews and use your ears. You know the DXR sounds good so go for it. Can't beat the quality build either.
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Bill in SC --- Roland BK9 (2) Roland BK7M, Roland PK5 Pedals, Roland FP90, Roland CM30 (2), JBL Eon Ones (2) JBL 610 Monitor, Behringer Sub, EV mics, Apple iPad (2) Behringer DJ mixer