Learn
People, people, people! You guys don't learn...Nimrod can do whatever he thinks is correct to please the wife, and it will not work. Might work temporarily, but not permanently. See, you didn't take a speaker decission by yourself, you took a furniture decission by yourself, and you have crossed into the wife's territory without her knowing...Man, you are in deep s__t.
Don't give her any gifts heavy enough to do body harm when she throws it at you. This is what is going to happen, she will get mad, but probably will keep her cool, and forget about it; or so you think. She will store this incident, along with others already on file in her, "I will make his life misserable someday", brain storage area. And, when she finds the right time, might be a few hours or decades from now, she will go to her file and find that thing that will make you sway and go her way.
In my case, my wife seems pretty understanding and basically allows me to do things my way most of the time; she allows me to go fishing, sailing, or road racing every now and then. She also allowed me to close part of our patio terrace to do a dedicated HT/AV room, with the condition that I built a new patio terrace with a small pool/jacuzzi, and an outdoor kitchen in the rest of the lot; no problem, I lked the idea anyways.
But, then came that fatidical day...I had sold my car to my sister, and was in the process of buying a car. Found this gorgeous always garaged 2004 BMW M3, SMG, Red with Red leather, Harman/Kardon factory system, only 26K miles, own by a lady who only used it on weekends or to go out at night. Price was a steal at $30K, as she only wanted to pay-off the financing balance to buy a 2008 Porsche Cayman (will wait a few years to buy the Cayman from her), as the local Porsche dealer does not take trade-ins.
I bought a car I have always loved for what is considered a bargain price...Basically the same price I paid for my wife's 2005 Jeep Limited GC when purchased new in 2005.
Well, I am proud to inform you that my 5 yr old son always arrive in style everywhere he goes with his mom, and I have plenty of cargo space in my vehicle to carry stuff like your sub...Do the math, and guess who wanted the M3 and kept it. At least I get to drive the M3 when she goes shopping.
Beware of the "I will make his life misserable someday" file I mentioned...Keep the sub and enjoy it, because she will never forget.