Maybe you already do this, but necessity intervened to try this. I have a unit in an industrial park for my business and offered up some space for my new power trio to rehearse. A business neighbor knocked on the door at 7:30pm to complain of the noise. He said we were disturbing his creative process since he is a "visual artist"...and pays rent there, too. It's my suspicion he also lives there...which was confirmed by my immediate next door neighbor with a machine shop... turns out he's complained about everybody making noise... in an industrial park. I've never had this issue before in an industrial park after business hours. I also caught the leasing agent in a lie denying we had a discussion about this. Living there is supposed to be prohibited, too. That's a completely separate issue. He complained to the property manager and I got the call. She told me no live music is allowed...which put us in a bind to rent rehearsal space. I needed a solution and consulted my band mates that if the drummer had electronic drums we can rehearse live in headphones through the mixing board. Bass player goes direct and I can use the Groove Tubes SEII I bought 10 years ago to run my amp rig direct. Bam! Drummer responds he has access to electronic drums. I was needing an excuse for new headphones so I run over to Sam Ash and pick up a Samson headphone distribution amp, a pair of Sennheiser $99 headphones and a few extensions. The guys bring their headphones, we set up and played live...in near silence. No one outside knew we were rehearsing live music...and the day...and future rehearsals was saved. It actually makes for a more accurate rehearsal since everything is revealed in the headphones. Anybody do this? It happens at NAMM all the time. It makes apartment/condo rehearsal a complete possibility. Technology is pretty cool. My wife wanted to come watch, but thought she couldn't hear us....other than raking strings, singing acapella and beating on drum practice pads and rubber cymbals. It's an excuse to buy another set of headphones for her....that we can take on planes with us, etc.