9887 Pros
-No extra gimmicks
-3 way active capable
-Tons of addons if you want them
-6 channel, 4V preouts
-5 band parametric EQ with 1/3 octave steps (20Hz to 20kHz) or 7 band graphic EQ (63Hz-17.5kHz)
-6db slopes from flat to 24db/oct
-Ability to turn off the internal amp when running active or using external amps
-Well built, not flimsy feeling or cheap looking
-Great sounding HU (when compared to other flagships of the era, ie: Eclipse CD7000, 7100, PRS880, PRS800, etc.)
-Time alignment is more accurate due to actual measuring and math.
9887 Cons
-Doesnt have useless features
-Limited EQ bands compared to the 80PRS
-Price point is still pretty high even for used models.
-Hard to find in good condition.
-Lack of built in bluetooth (comes in module form if it tickles your fancy)
80PRS Pros
-5v preouts
-3 way active
-16 band graphic EQ
-Bluetooth built in
-USB built in
-Aux input built in
-Automated time alignment for the lazy
80PRS Cons
-Cheap and flimsy feeling
-Pico fuse can and will die without warning even during proper installation.
-Lack of parametric EQ
-Automated time alignment is less accurate than doing the math yourself.
-Alot of useless features for someone just looking for bluetooth or iPod or active capabilities.
-Price compared to older active capable HU's.