Can this also be used with 220V outlets?

From Avantone’s website: “AC Input: This input is only to be use with the proprietary AVANTONE Power Supply. Tighten the cable/connector securely for reliable operation. Note: There is a switch on the power supply for selecting the proper AC/MAINS operating voltage for your location.” So it sounds like it should be fine with 220V

Can i connect it directly to my macbook pro? in the case, what cable do i need? thank you.

Its connections are Balanced XLR & TRS Input. This cube is specifically designed for Audio Mixing purposes to give a very flat mid to high frequency response. It is not an audiophile's dream, it is more like an old mono TV speaker or cheap boom box which is something a mixing engineer would care about as he strives to make his product sound good in all environments, hi-fi and lo-fi... It is also "active" which means it has its own amplifier on board and requires AC power (supplied power/cord comes with). You cannot use your computer Headphone jack to drive this puppy... A: it is mono & B: the wiring is different from headphones and balanced trs/xlr... I'm not sure what your purpose is, but if you just want to listen to music this may be your worst choice...

Do these come in a pair of 2 Monitors?

No this is for a single monitor. I bought it to reference for mono compatibility.

How to make a mono connection to a 1/4 headphone output?

You should be able to set your DAW, your interface, or all output to MONO, then use a TRS to TRS or TRS to XLR cable to the cube. You will want to unplug or otherwise silence your regular monitors. I haven't even tried to use a head phone jack but a TRS to TRS might suffice.

ASIN	B01N2Y3MFZ
Audio Driver Size	5.25 Inches
Audio Driver Type	Dynamic Driver
Best Sellers Rank	#83,760 in Musical Instruments ( See Top 100 in Musical Instruments ) #169 in Studio Audio Monitors
Color	Black
Compatible Devices	Desktop, Laptop, Television, Projector
Control Method	Remote, Touch
Customer Package Type	Standard Packaging
Customer Reviews	3.9 3.9 out of 5 stars (45)
Date First Available	August 19, 2012
Indoor/Outdoor Usage	Indoor
Is Discontinued By Manufacturer	No
Is Waterproof	FALSE
Item Weight	12.65 pounds
Item model number	AMB
Manufacturer	Avantone Pro
Material	Stainless Steel
Model Name	AMB
Number Of Circuits	1
Number of Power Levels	1
Power Source	Corded Electric
Product Dimensions	10"D x 12"W x 15"H
Shape	cube
Speaker Size	5.25 Inches
Speaker Type	Monitor
Style	Boom microphone stand with a telescoping boom arm
Subwoofer Connectivity Technology	Wired
Subwoofer Diameter	5.25 Inches
Surround Sound Channel Configuration	2.0
UPC	794504980615
Unit Count	1 Count
Warranty Type	Limited
Wireless Communication Technology	No Wireless Communication Technology
Woofer Diameter	5.25 Inches

AvantoneFull range study reference monitor

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