Yamaha HS8W 8" Bi-amped Nearlfied Studio Monitor in White 12" Active Subwoofers Since the SR-18 can be

Since the SR-18 can be powered by AC or batteries

This unit does NOT ship UPS

the UHF design has a much less chance of interference

The CD slot cover prevents dust from entering the transport

Yamaha HS8W 8" Bi-amped Nearlfied Studio Monitor in White 12" Active Subwoofers Since the SR-18 can beThe Yamaha HS8W is a 2 way bass reflex bi amplified nearfield studio monitor with an 8" cone woofer and a 1" dome tweeter in a White finish. Yamaha HS8W Features: 38 Hz 30 kHz Frequency Response 75W LF plus 45W HF bi amp system for high performance 120W power amplification Room Control and High Trim response controls XLR and TRS phone jack inputs accept balanced or unbalanced signals Yamaha HS8W Specifications: Speaker Type: 2 way bi amp powered