A few years in the making, with the room treatments and speaker positioning providing the final edge to bring that sweet “in the room” imaging and sound-stage that analog+tubes can deliver. The room being so small has meant that small tweaks make big differences.
The acoustic panels on both side walls, the quadratic diffuser on the rear wall, the record storage/display and subwoofer are all DIY.
The frequency response plots show the "before" and "after" the speaker positioning and room treatment additions. Many a Saturday with my best friend, the "Room Equalization Wizard", a testing mic and lots of patience. I'm not sure I'll ever get rid of that 35hz bump caused by a room mode.
@weiserb - I used the GIK room modeler. It isn't great, but it is free! https://www.gikacoustics.com/room-acoustics-visualizer/
@bdp24 - Thanks. Yes, the instrument collecting is fun, and it has taken me most of my adulthood. Maybe a 'proper' jazz guitar to still add. One day!
@cdorval1 - Yes, I did make the LP rack. It was one of my "covid projects". (https://jenwoodhouse.com/vinyl-record-storage/). It was fun and required purchasing a few new tools (part of the fun) and learned some stuff along the way. BTW, made the rookie mistake of building it too small. It filled up far too fast. :-)
@mjcmt - the CJs are "old system". The new tube gear much warmer than the CJs, which I prefer. The CJs are great, but have a sharpness on the higher end that I've grown to dislike as I've gotten older and my taste (and probably hearing) has changed. Great call out about "seasonal" systems with the tubes. That Dynaco heats the room in no time in the winter, and makes the room a bit overly "spicy" in the summer!
@oldears - thx for the callout about moving the speakers further into the room. I've experimented a LOT with the Electa Amators and they need to be a bit further away from the listening position to make the soundstage integrate well. I do give up a bit of the pinpoint imaging, but the trade off is worth it for the "in the room" feeling of acoustic instruments that I'm after.
Nice instrument collection too. Between the Les Paul, Strat, Tele, Epiphone ES335 (the Gibson version has gotten too expensive, hasn't it?), Martin, and Fender Deluxe (no reverb? ;-), you got it all covered!
Well thought out system and room. I'll bet its a please to listen to vinyl and streaming. Are your CJ separates the previous amplification or do you switch around in summer and winter? Your system/environment is a pleasure to view. Thanks for sharing.
I like it. A suggestion: Move the speakers 2' more into the room ( to get to one third the length) and move the seating position 2' toward the speakers ( to get to an "equal T" ideal distance for imaging). Will only cost you a few minutes and you will be really pleased, I think.