Mackie Big Knob 2x2 Passive Studio Monitor Controller for Two Audio Sources and Monitor Pairs, No Power Needed

Other than the name (which causes titters from every visitor to my modest video post-production studio) this is a fantastic device and enormously useful. It does precisely what I want it to do, namely to allow me to mute or dim audio to the main monitors when recording vocals or acoustic instruments. Additionally I'm using it to route audio from a laptop so I can use the studio monitors to watch YouTube, listen to Spotify etc in high quality, without needing a second pair of speakers. I only do one thing or the other at any given time so a simple A/B input is perfect. The mono sum feature is invaluable, as is the mute button. I can't discern any alteration to tone or levels (not saying there is none - but my old ears haven't noticed it). Overall a very happy user.

I was looking for a high quality passive volume control to a pair of powered speakers with 2 input sources. The unit appears very well made, the volume control works flawlessly and feels positive to use, and I don’t suffer from any extraneous noise or interference. It wasn’t the cheapest option, but my initial impressions are that it is well worth the higher price.

Great monitor controller. Smooth potentiometer that feels well made and sturdy. I don't notice any impact to the signal path and certainly no introduction of noise as stated by some in other reviews. Really handy to have a mono button to hand allowing me to check on the stereo field. If you need one, get it!

I have both my studio monitors and my Cambridge Amp with Kef speakers connected to the big knob. This enables me to switch between the two, allowing me to record and master my mix and then switch to the Kefs for checking normal play back. A great feature is having volume control,. This allows me to set the volume on my monitors and just leave them and use the big knob for volume control. Another great feature is being able to mute the speakers, this prevents feedback through the speakers from the microphone. This is a very handy, great piece of kit that every home studio or small recording studio should own. If you don't, my advice would be, to get one. You will not be disappointed.

Needed to add an AUX to my powered monitor system, smooth controls and useful functions. The large knob gives very accurate level adjustment. The weight of the steel case keeps it in place on my desk even with a full set of cables connected. Comes with a free license for the Mackie version of Tracktion DAW in the box. Only criticism would be the printing for the knob legend was slightly off center, but its just an aesthetic issue.

Great piece of kit. Solid build and seriously reassuring quality to the sockets and buttons. Makes a huge difference to the hundreds of small adjustments that are made while mixing.... a kinetic connection to what you're hearing.

I bought this item as I wanted to integrate DJ equipment [CDJs & Mixer] into the music production suite in my studio without having to purchase an additional pair of monitors. It works perfectly. The passive circuitry of the Big Knob is clean and hasn't [to my ears] added any unwanted colouration/noise to my signal path - I use UAD Apollo as my audio interface - when switching between audio sources [DJ & Studio] I would highly recommend.

Balanced cables are needed. My unit hummed when I connected it. I re-soldered all my leads so they were balanced problem solved. I’ve only had it 1 day so far no issues. I think that my monitors sounds a tad different. I need to run some tests. I will report back.

Excelente material mejora mucho mi flujo de trabajo

I really like the design of this, but found without the proper grounding of a power supply you can introduce noise into the signal. I also noticed as you bring the attenuator knob down to the lower quarter, the left/right speaker channels become unbalanced. So if you are monitoring in this range and mixing your song, you may get a rude shock when it comes to listening on another stereo device.

Fine, but the buttons get loose by the time. You need press it many times to work properly. Good just for sometime and then you need to upgrade for something better

プッシュプルの真空管アンプを導入したところ、ボリューム最小でも出力が大き過ぎたので、ボリュームコントローラーを探してたどり着きました。 機能的には申し分ないし、コンソールに配置されたボタン、ボリュームノブの質感も値段を感じさせない高級感があります。 急いで購入したので、Mono、Mute、Dimスイッチがあることに驚きました。 あと、サイズが意外と大きいです。 多分、これくらいだろうと勝手な想像をしていたのですが、ふた周りくらい大きかったです（笑） 商品説明に掲載されていないので、盲点でした。 で、肝心のサイズは高さ79×横幅137×奥行き142mm、重量1kgです。 これから購入する方は予めチェックしておきましょうね。

Son design intuitif et sa construction solide en font un excellent choix pour gérer plusieurs sources audio avec précision. Je recommande !