When plugged in to power, there is a high-pitched electrical whine and when the power button is pressed, the light does not come on.  No sound when hooked up to audio source.  If you’re good with electronics and can fix it, this is an excellent studio monitor.  I think it just needs a capacitor replaced (pretty sure there's a video on YouTube about how to fix it).  Sorry, only have one, sold the other two. 

Specs:

Bi-amplified design / Tweeter - 30W, Woofer - 65W

Woofer: 6 1/4” lightweight, magnetically-shielded, ultra-stiff polypropylene cone with rubber surround and high power handling voice coil

Tweeter: 1” silk dome with magnetic shielding

Frequency Response: 49 Hz - 20 kHz

Crossover Frequency: 2.8 kHz

Signal-to-noise ratio: >100 dB below full output, unweighted

Inputs: XLR and 1/4” TRS supporting both balanced and unbalanced cabling

Input impedance: 20k ohms balanced or 10k ohms unbalanced

Max Sound Pressure Level (SPL): 90 dB @ 1 meter

Controls: Low, Mid, High Freq EQ control, 1 x low freq density switch, gain knob

Dimensions: 15 x 8.5 x 10.25”

Weight: 21 lbs