Audio-Technica AT8681 Unimix 2-to-1 Microphone Combiner with Balance Control, Black

From the description, it was hard to tell what was inside the box. I was concerned that it would just be a handful of resistors in a summing bridge configuration. I am happy to report that the inputs are actively mixed and that the result is fairly low noise. As long as the microphone levels are reasonably high then this box will do the trick. Build quality is good with real through-hole components that should hold up to rough service.Our application was to sum two piano microphones into one house input and that works well. I like the variable trim level control. This little gem is a great gadget to put in your "get-out box". The Audio-Technica web site shows this product as discontinued so you had better act fast if you want one.I am including a photo of the circuit board in case you are as curious as I am.

These aren't made anymore, glad I found this one. Sums up condensor mics very well.

I liked the way I could combine my top and bottom snare mics together in one signal path to send to a single channel to be equally affected by compression and eq and save on channel space. The +/- 6dB sweep between inputs seems a bit negligible and it would have been awesome if it had a polarity/phase switch built in; instead, I have to rely on putting an inline polarity/phase reversal adapter on the bottom mic to bring it into phase. Regardless, it’s a great piece for the money and I would recommend it to people who want to save money and channel space when combining top and bottom mics on their drum kits.

I needed a small mixer for two microphones, At8681 does it well even with two different types of microphones. One just need a DC block as one microphone could be damaged by the Phantom power used by the other microphone. Also the mixer requires phantom power to function. I use it in a Ham radio station and RF does not bother it. Works well sonically and sounds great.

These work great and do what they are meant to do. turn one mic into 2. with that said, When plugged in i lost at least half my volume to all the mics. could not hear the vocals over music anymore so these are pretty much useless to me i have a couple of paper weights now.

Does exactly what it was designed to do and does it well. We needed two microphones for the Leslie speaker, but only had one available input on our mixer. This combiner solved our problems. Easy to connect and small enough to not be an eye sore and easy to hide.

The Audio Technica name comes through in this device. It is very reliable and does exactly what it is supposed to do.

Connected well and doesn't add any noise. The blend knob doesn't quite cut it though. All the way left or right is only a slight cut of the other channel. It would be perfect if it completely cut or had more range.

This wasn't what I was hoping for. You seem to need extra gain on the mixing device you're using and then you get unwanted notice. The fade from one mic to the other doesn't seem to work well either.

マイク回路の入出力数の関係でファンタム電源必要の同じ型式の２本のエアーマイクを１つにまとめなければならなくなった為いろいろ探していたが、他のメーカーの機種はマイク音声は１つに混合できるがファンタム電源供給は片側のみ電源が通り、もう片方は電源を通さないものばかりだった。この製品はマイク音声は混合でき、ミキサーからのファンタム電源供給も両方の端子に供給可能なタイプでしかもパッシブで可能なのでとても良かった。なおメーカー様も海外向けの製品だったが親切な質問回答対応をしてくれて良かった。現状国内では原則電源の供給は片側のみらしいので自己責任でどうしてもの場合はこの製品のように逆輸入のものを購入することになります。