How do you decide between these SERIOUS studio monitors?

We have the Yorkville YSM8 for only $269!

We have the JBL 308MKII for only $249!

Yorkville YSM8 features:

Reproduces source material with near pinpoint accuracy and detail
Contoured MDF baffle engineered to minimize front face reflections
Front facing port design eliminates bass coupling with back walls and corners in imperfect listening environments
Improved phase response provides a wider 'sweet spot' in the listening position
Strategic bracing and ample internal dampening eliminates unwanted low frequency rumble
Biamplified Power Module (75 watts woofer / 20 watts tweeter)
Custom designed soft dome tweeter
High quality low frequency 8-inch woofer
Rock-solid 3/4-inch MDF cabinet construction
XLR and ¼-inch TRS balanced inputs
4-position high and low frequency trim controls to optimize response for recording space

JBL 308MKII features:

LF Driver Size 203 mm (8")
HF Driver Size 25 mm (1")
HF Driver Type Soft dome
Crossover 1800Hz 4th order acoustic Linkwitz-Riley
Power Configuration Bi-amplified
HF Driver Power Amp 56 W Class D
LF Driver Power Amp 56 W Class D
Frequency Response 45Hz – 20kHz (±3dB)
Frequency Range 37Hz – 24kHz (-10dB)
Low Frequency Extension 37Hz (-10dB)
Maximum Continuous SPL 102dB
Maximum Peak SPL 112dB
Maximum Peak Input Level +6dBV / +20.3dBu (-10dBV / +4dBu)
System Distortion Criteria <10% THD at maximum output with full compressor / limiter engagement
Electrical Distortion Criteria 0.2% THD @ 1kHz / 2.83VRMS output; <1% THD @ 1kHz, full rated output
Signal to Noise Ratio 75dBA (A-Weighted), 70dBr (unweighted), relative to 2.83VRMS output
Coverage Pattern 120° x 90° (horizontal x vertical)
HF Trim Control -2dB, 0dB, +2dB
Boundary EQ LF Shelf @ 50Hz
AC Input Voltage 100 – 240VAC (±10%), 50 / 60Hz