This has been a great week of gear for me. A few things that I ordered last year are finally done and came in the same week!! Something that I've been excited about was this Electrosonic head. A while back, I spoke to Josh at Electrosonic about building a 60-100 watt head that was based on my old Ampeg B-15n. We exchanged a few emails and explored a ton of options. Here's what we came up with as far as specs: -4x6L6 Cathode bias output -6SL7 Preamp tubes -6SL7 Phase inverter -5U4 tube rectifier -3 band tone control with 'Fat' switch -Oversized output transformer -Slave out with volume control -Pine cabinet There are a few key differences from the B15N, but it was more an 'inspired by' amp than a clone. I knew going into it that I wasn't going to get an exact tonal copy with more power. We kept the tube types similiar. The head is all hand wired. I have been playing this head all day, but just put my son to bed, so I thought I'd share. Here are some pics: I didn't A/B the Eclipse with my B-15N, but from what I hear in my head, the Electrosonic is a bit brighter when set flat. This can be fixed by a simple touch of the treble knob though. The eq is very usable on any extreme and didn't break up when I pushed the bass knob all the way up. All three bands are voiced nicely and compliment the tone without being too overpowering. The mid control is a feature that was missing from my B15. I am a 'mids are king' kind of guy, so I wanted a little more control. Even if I set it flat, at least I would have it if I needed it. And I still think the 3 band is still taking a less-is-more approach that I love in an amp. I really like the way the mids are voiced in this head. It delivers a smooth fat growl without punching too hard. It feels like it 'breathes' nicely while still delivering fat, warm tube goodness. As if the tone blooms more than punches. The 'Fat' switch is the only other added tone shaping feature. It is a subtle kick, but pretty sweet none the less. I probably could have lived without it, but I like how simple it is to engage a bit extra. So, does it sound like my B-15? Well, first I have to say that it's a completely different head. There is an added power tube set, there are a bit more tonal options, I was playing it though a 2x12 cab, the tube rectifier is different..... To be honest, I really don't care if it nails that tone or not since I am really impressed with this head. I had planned on doing an A/B test, but now I don't think I'm even going to do that anytime soon. The bottom line is that the head delivers everything that I was hoping. Without a direct comparision, and going off of what I remember, this head sits somewhere between a B15N and the Sadowsky SA200. Where exactly it falls is yet to be determined, but I'm still just getting to know this head I am off this weekend, but I hope to have some rehearsal reports soon.