For use of modulation effects like chorus or flanger with the amps od, the effects loop comes in handy. May require some pedal board re patching or reconfiguring, but worth it to sound right. Most bass amps use parallel loops with a blend control, where the rumbles have serial loops, which guitar players prefer (many have amps with parallel loops converted to serial, a common boogie mod). Serial loops are simpler, just control your depth on the pedal as you would if it was in front.
Parallel loops with blend controls are handy 2nd input channels for plugging in keyboards, electric drums or even a vocal mixer on those really quiet gigs where the amp's unused headroom can be put to use as a small Pa. I shared my wm10 combo with a coworkers electric drums at a few office parties, but that is an extremely low volume example, and not one that would come up often, but if you double on keys, a small mixer going into the effects return beats having to carry a separate keyboard amp or trust a house engineers mix of multiple keyboards in your geddy lee tribute rig. This coming from a former house engineer
Parallel loops with blend controls are handy 2nd input channels for plugging in keyboards, electric drums or even a vocal mixer on those really quiet gigs where the amp's unused headroom can be put to use as a small Pa. I shared my wm10 combo with a coworkers electric drums at a few office parties, but that is an extremely low volume example, and not one that would come up often, but if you double on keys, a small mixer going into the effects return beats having to carry a separate keyboard amp or trust a house engineers mix of multiple keyboards in your geddy lee tribute rig. This coming from a former house engineer
You are member #299 
