The black K&M 211 One-Piece Boom Arm with 3/8" Threadis a traditional one-piece boom arm with a fixed length of 31.5 inches. It features a sliding adjustment through a non-scratching swivel joint and a T-bar locking screw to securely hold its position. It can be used on a standard tripod microphone stand (available separately) with a 5/8" thread.

Classic One-Piece Design    31.5" Fixed Length    T-Bar Locking Screw    3/8" Male Threaded Connector    5/8" Threaded Hole for Mic Stand    Steel Construction with Plastic Handgrip

• One-piece boom arm with locking washer
• 3/8" male threaded connector
• 5/8" threaded hole for attachment to a mic stand (available separately)
• Steel construction with a plastic handgrip

Related Questions and Answers

Q: 1. What is the inside diameter of the hole through the counterweight or equivalently the outside diameter of the boom arm this is designed to slide over ?

A: The K&M 21105 Counter Weight is designed for use on one-piece K&M boom arms with a 3/8" male thread or a tube diameter 0.6" (15mm). The Counter Weight itself is made of steel, has a height of 2.36" (60mm), a diameter of 1.97" (50mm), and weighs 28.2 oz. (0.8 kg).

Q: 2. What are the weight limitations that this will hold? If I'm using the C-stand riser what unit will this safely hold?

A: The manufacture does not list the support weight of the Kupo Pivoting Boom Arm Clamp. It is made to use a C stand column and most of those have a support weight of up to 22 lbs.

Q: 3. Is it possible to mount/suspend this arm from above?

A: The MBA38 is not intended to suspend from above. It does come with two types of mounts -- a clamp style mount and permanent flange mount. The stem for the arm inserts into the mount from the top. You could attach the clamp mount to a shelf and then position the arm so the mic comes downward, but the arm can not be mounted upside down.

Q: 4. I already have the Kupo C-stand with Turtle Base, the steel baby boom arm and the grip head. However, I like the idea of the Kupo Pivoting Boom Arm Clamp. I am having trouble, from the singular image, how it will actually works with the boom arm. It might seem like a silly question, but how does the pole fit into it? Or, is this accessory for another type of boom arm? Thanks for your time!!

A: The riser from a C stand is inserted in the tube that you see in the top of the image of this product. Then you twist the handle on top to tighten it in place. So, this product basically allows you to use a C stand riser as a super-sturdy boom arm.

Q: 5. I understand that the boom itself has 2 connectors (3/8" & 5/8"). However, what is the thread for mounting the clamp assembly itself? is the "short tube" that is pictured "faded out" at the bottom included? How does this mount onto anything?

A: The manufacturer listing for the K&M 21431 Mini Boom Arm only mentions "wing nut" clamping. The vertical pole pictured in this product image is not included with the boom arm. Given that this arm is meant for mounting onto mic stands, which standardly have a 5/8" thread, it can be presumed that the wing nut hardware included likely adapts to 5/8" threads in some manner.

Q: 6. is this compatible with the K&M 237B Table Clamp (Black) ? BH #KM237B • MFR #23700-500-55

A: Yes. These two items are compatible. Be aware of the microphone and shock-mount weight.

Q: 7. Could this mic arm works with the MXL BCD-1?

A: This studio boom arm would be compatible with the MXR BCD-1 Broadcast Dynamic Microphone.

Q: 8. How long is each arm?

A: About 19 inches.

Q: 9. Does this arm have adjustable retention? I'm planning to use it with a mic that only weighs about 1/4lb

A: The Samson MBA38 does not have adjustable retention.

Q: 10. Can I use two K&M 21105 counterweights on the same boom arm? Is there a hole at both ends to allow for this?

A: yes. I am using 2 on one arm. and there is another trick. if your arms are just a bit thick,you can pop out the plastic liner. I like these, it's hard to find good counterweights these days.