The sound of my new electrical service: Day 1


And I mean a completely new service. New pole!, new pole transformer!, new underground line to the house (was above ground), new meter, and new breaker box with all new breakers. House wireing remains the same. Talk about an upgrade! Or, will it be a sonic downgrade? I wouldn't be surprised. House was built in 1964, so that stuff was 50 years old.
I don't do much desk work, so typing all these subjective impressions will be quite a bit of work for me. I hope we all can find it interesting at the least. I doubt too many others will have to go through this with their systems, so maybe it's pointless, but might still be interesting. Beforehand, my system was sounding so good that I was afraid to change anything. You know what I mean don't you? If not, I'm sure you will get there eventually.
System: completely restored, vintage tube. Been through the modern stuff, this is the real thing. I will stick to digital VIA CD for the first few days to keep things simple for us.
Day 1: Eric Clapton "Unplugged", Buddy Guy and Jr. Wells "Alone and Acoustic", Ani Defranco "Living in Clip"
Right away I noticed the urge to turn the volume down. I'm usually inclined to turn it up because this system can sound so deliciously juicy with real life timbre and tone. Not sure if it now plays louder at the same volume setting, or if it is just more irritating. On Unplugged the instruments have lost that deliciously right timbre and tone. Total lack of analog like sweetness and the system could even be mistaken for solid state. It has aquired a solid state like impression of power though. Foot stomp/tapping is more audible with a bass like presence. Sibilants, S's are pronounced like they linger too long. Capton's voice is both murky and harsh at the same time. Overall, a great loss of transparency that makes this obviously a recording and not the musicians in my room.
On Buddy Guy, a lack of clarity on the voices. Also irritation when things get peaky. Jr's harmonica is dark and lacking the usual bouncy excitement. Guitar tone seems lacking in higher frequencies. Again though, I hear more intense feet to the floor sounds. Need to play something with bass to see what happens there.
On to Defranco's live disc. If you have any interest at all in this artist, just buy this one. You might not love all of it, but the good stuff is just great. On this disc, the energy is all there, but on the irritating side when things get loud. Voice comes off better than the other two discs, but not at all what I am used to. Bass? Well, it seems tighter, but not better or stronger. Her guitar rings out as usual with plenty of power, but, again the timbre is off making everything less interesting. When the music quiets down, a perception of transparency sets in that approaches what I am used to here.
Thats it for now, stay tuned for day 2, etc. to come.
hifiharv

Showing 7 responses by hifiharv

I should add something that occured on all these discs. It's as if the instruments and voices are stepping on each other. The focus is not as sharp. It's hard to pick out and concentrate on exactly what a musician is doing or playing because the others subjectively drown them out. This is difficult to describe and I'm not sure I understand it. I hope you understand the point I'm trying to make. There is a "confusion" enveloping the sound. The opposite of "musical" for sure.
Thanks for all your interest so far. The job did include a new ground rod by the way.
jea48, not sure, I will look at the box tonight when I get home.
I don't know what the voltage was beforehand, but I will check though and make sure it is at normal specs. Normal specs today are different from 1958 when the amps were built. Could be 120 or more now, was 110 or so then. It's a common problem with vintage electronics as the higher line voltage can run the tubes very hard. Also, these EL84's were run hard in the first place by design. Not a big deal when you could just go to the drug store and get a new one for $2.00. Resistor changes can address this when needed. The results so far actually don't surprise me. I didn't expect things to be great right away. No different from a new cable or component needing break-in I suspect. There is alot to break in... transformer, incomming line, breakers, etc. So, thankfully, I'm not exactly beside myself with audio depression...... yet. If things don't come around I will do whatever it takes to re-tune the system and hopefully bring the magic back.
Sorry, but no time last night to listen. I should have some more results tomorrow.
You all make good points. Yes, the system was tuned by ear over a long period of time. Cables, tubes, isolation, etc. All chosen for synergy and musical pleasure. Any change, be it higher or lower voltage, fresh transformer and wire, etc. will show up in stark relief. We can't expect the elecricity fed into our house to be benign any more than we can say "all cables sound the same". As audiophiles I think we are all intricately aware of how our system sounds. Others may not even notice, but any slight change will be immediately apparent. Even moving a cable can upset the balance for a few days.
Good point from Al that if power voltage has changed, then rebiasing may be in order. The Amps are the Fisher 30A's and are not adjustable. Tubes are all healthy, a mix of great old European and USA brands chosen by ear. Again, I'm not sure what voltage was before the changes and didn't take the time last night to check. I did get the time for another listen though. I will start a new thread for Day 2 to keep this discussion current. I am resisting the temptation to change anything at all until much time has passed. At least weeks, maybe even a month.
Sorry Jim, did not get to the box last night. I'll do that tonight along with testing the voltage. Something tells me I don't want AFCI's. We'll see. Not sure what our County's requirements are but passed two inspections on the day of the work.
FWIW, the line from the pole appears to be large wires protected by a plastic shield that is bolted to the pole. It goes into a large access box under ground beneath the pole. It's like a water meter box. From there it is underground in large plastic conduit to the meter. I don't know what guage or how many leads there are. I also don't know if there are connections in that box, or does it just give them a convenient access to fish the line back and forth. I'm sure they were not gentle with those wires. Not like us and our cables. The job was a one day joint effort between the power company and our electrician. I'm not sure if the Power co. wired to the meter, or just to the underground box. Wasn't there at the time, had to work.
I hate this... forgot to take the meter home from work yesterday. You'd think that would be at the top of my list (and it was). Alot going on right now. Couldn't test the voltage.

Jim, did check out the box though. The breakers appear to be conventional. No test switch. Box is square D HOMC42UC. Breakers are marked: HACR type. HOM type. There is a 200 amp. main breaker.
Looks like I am boreing everyone at this point. Checked the house voltage and it was 120 or so volts during PM listening time. Certainly within modern specs. In comparison, the voltage in my shop across town where I work on the electronics (for myself, I'm just a DIY'er) and voice/test them is 119 or so. That building was built in 1979. So, not a huge difference there. Not sure what voltage in the house was before the changes.