Owners of AV3 and AV4IP video panels looking to ground stack up to eight panels vertically will be pleased with the American DJ AV4SBB, a rigging/stacking bar that's used with the AV4RB1 to create a ground-stacked video wall.

Use with Ground-Stacked Video Walls    For Use with AV4RB1    Compatible with AV3 and AV4IP    Stack up to 8 Panels Vertically

Related Questions and Answers

Q: 1. Will this bar attach to any tripod with standard 1/4 20 threads?

A: The Oben TAB-2M Two-Mount Tripod Accessory Bar will mount to any standard tripod head mounting 3/8" screw.

Q: 2. Are the end parts (where the screws are) made of plastic or aluminum?

A: Thanks for reaching out. The bar and base mount are all aluminum.

Q: 3. How long is the power cord?

A: Three feet

Q: 4. Is this device strong enough to hold an EOS r with a 100 mm macro lens for digitizing negatives above a light box?

A: Yes, But a end-user must be mindful that the unit is only as strong as the tripod supporting it.

Q: 5. I just received this item. When I mount the bar to a set of tripod legs and turn the rubber wheel to tighten the screw, the wheel is very difficult to turn and sometimes I need both hands to turn it. Has anyone else experienced this?

A: It will depend on what you mean by difficult. The central thumb screw under the center of the Mounting arm is manufactured from rubber for better grip, but it can seem a bit awkward to to tighten. Two tips would be to 1) Ensure the screw on the bottom center of the Mounting Arm is properly seated on the screw on the top of your tripod's center column, and 2) Try holding the thumbscrew dial and instead, turn the entire bar clockwise to tighten the mounting bar to the center column on your tripod. While it should not be overly difficult if you are following the above instructions and the instructions listed in the instruction manual, and you still seem to be having issues with connecting the mounting bar to your tripod, I would recommend contacting Oben directly for assistance with the Mounting Bar either by calling them at (212) 594-2120 or by e-mailing them at info {at} obensupports {dot} com. If you purchased the item within the last 30 days, you may also contact our Customer Service Department to inquire about returning the item for an exchange or a refund.

Q: 6. Is the bar fixed in the middle position or can it be fully extended laterally?

A: The Oben TAB-2M is not laterally fixed; you are able to vary the position of the accessory bar relative to its mounting bracket/point in the middle and can alter the length/positioning of each side.

Q: 7. Can I use one of these vertically on the side (If I had two) so it would be like a vertically adjustable column?

A: Assuming you have a special reason for doing this, you can attach one vertically. The weight of anything you put on it would have to be balanced from the other side though for the horizontal piece to slide without binding as well as to keep it from falling.

Q: 8. What is the footprint diameter?

A: According to the manufacturer, the foot print diameter is approximately 40 inches on the American DJ Pro Follow Spot Stand.

Q: 9. How does this model compare with the Manfrotto 131DD?

A: They are functionally the same and have the same type of excellent reviews.

Q: 10. Is this a surge protector as well or do you need separate surge protection?

A: This unit is only a distributor. Here is a similar option which will sequence the power sockets and offer surge protection: B&H # FUM8S.