This is a worth while product for the homeowner who cuts on the weekend or a few times a year. I have a bench mounted sharpener that is now collecting cobwebs. This sharpener is well made and about 1/2 the price of the identical branded one.

About 5 minutes to sharpen a blade. This saves time over bench sharpeners. It knocks down the rakers as you file, another time saver. It does a better job sharpening than my bench mount.

Mackie hm-4 headphone amp can be used to share one stereo source with up to four headphones. Some people say it's mono, but i'm willing to bet they are using a ts cord or 1/4 guitar cord to bring in signal not a trs cord or balanced stereo cord.

The mackie is way better (no noise and the knob is more precise and feels better) than the donner. Adjustment is pretty straightforward, but the knobs do wobble. Improves the volume massively, but it is not an equalizer.

Chirchofriffs uses a zoom r recorder and a zoom h4n-pro recorder for audio pre-production and post-production of live interviews and discussions. It's also great if you're producing multi-person podcasts. On top looping because of the speakers and wha...  Read More

This mini headphone amp is gooooood. This distribution amp is well suited to my particular application where distortion must be avoided.

This headphone amplifier is portable and sturdy, as advertised. It weighs less than a pound, so it is easy to carry around. Plenty of headroom.

Mackie's desktop headphone amp has a bad channel in the headphone 1 mix. Adds a ridiculous amount of static, and the input port stopped working properly. The knobs are fragile and very cheaply made.