it does now. :)
really......should I just move back to a boom box? :) |
I have replaced fuses.....it had happened once more but now seems to be fine. for now. |
All great points, Lloydelee21! I actually did some additional reading on here late last night and did some of your suggestions early this AM.
So, when having just the amp and pre hooked up and turned on (CD/DVD still connected but now turned on) there is no feedback, even turning volume up on pre.
everything else is disconnected from pre, as well as power. I also disconnected tv power, etc from system.
I DO have a power strip in place as the outlets are all two prong in this house. SO, I have to have a "3 to 2" reducer on the end of the power strip.
still getting same thing! ugh! if volume just barely turned on, music is fine. but as you turn it up to even 9 o'clock, the woofer starts to "pop" and there is static coming from mid and tweeter......both speakers!
I am not certain how old tubes were with pre amp, but I just put them in, and they (I believe) were well labeled for placement (I never put tubes into a pre before).
additional thoughts? |
All great advice, thx! yes, renting......just moved out of house that we built 6 years ago, so been a bit spoiled on actually 21st century technology, vs. NINETEENTH!!!! :) I have a call into my electrician today to get addressed, either way. Will do further isolation testing tonight as well to see if I can figure this out. so frustrating, but I think you are both on the right track for me. Thank you so much! Jason |
Ok, update: Yes, I am using a 3 to 2 "cheater" plug/reducer right now. My electrician friend is coming over tomorrow night to look into my electrical scenario. Not pleasant to say the least.
I did open up the pre amp. It looks like tubes 4,5 and 6 are all in correct spot, as I can clearly read the white lettering on the signifying the model. Tubes 1-3 unfortunately are illegible. I did, however, place them in the spots as was indicated on the tube boxes that came with the PV 11 when I purchased it. I have the entire system (just amp, pre and cd/DVD) out in middle of room. No crossed wires, no other issues. I've tried other cables, I've plugged the DVD into a different source on the pre amp......same results.
I made mention Arlie's of it sounding "fine" at lower level......not the case......just at low volumes more difficult to hear the static/thumps. |
wow, you ALL are amazing! thank you for your advice thus far.
UPDATE: Still not solved, but here is what I have done.
i found a grounded outlet in the house near a brand new washer/dryer my landlord recently had installed. pretty sure it's grounded, it has 3 prong.
I ran an extension cord from my strip to that outlet, still just using the amp, pre and 1 source.....still an issue. I changed source components, I also changed interconnects.....still an issue.
If I turn volume all the way off with the CD player playing, the noise goes away......but when I turn volume up, the noise/static/"pops" present. the louder I turn it, the louder the noises get.
My electrician is coming tonight, but I think less and less that it's the power source....although another grounded outlet is needed in this place! :)
could it be the tubes? i have no idea how good/old/hours there are on them. I do know that the !2AU7's are in correct place.....but not certain if they are all good or not. |
Lloydelee21, correct. nothing. no hum, no nothing. |
Great idea, Almarg! I'm flying back home from biz tonight. I will try in am with dragon.
So, you believe it might be bad tubes?
Note for all: It's not just a "hum". It's a thumping coupled with a static-ie feedback. |
Ok, the plot thickens. When I just hooked up my nakamichi dragon directly to my SA 400 amp, it still does the same problem. Ugh!!! Tried different interconnects as well. It sounds like a bad (distant) radio station when I play a tape.....static, woofer noise, etc.
Could it be the amp?
I know it's NOT the speakers. I tried another set of speakers in this system earlier in the week and they did the same thing, but they work fine back in my mini system in the kitchen.
May e it's time I go back to a boom box! :) |
Dhl93449, it is constant. no matter what the source. I wonder if it isn't actually the amp, as it happens with CD, nak, 2nd CD/DVD, no matter what.
I have a call into Ed at CJ too.
thx! |
PROBLEM SOLVED!!!!!!!
Well, I finally spoke with Ed at CJ earlier this week and we took off the cover of the amp together (as the fuses are internal on the Sonagraph SA400). Sure enough, 2 of the 4 fuses were blown. once replaced, all is well.
I want to personally thank each and every one of you for your input, advice and direction in helping me solve my issue. Your direction allowed me to go to Ed with pinpoint accuracy on where "we" collectively thought the issue might be.
There is nothing more satisfying now than sitting in front of my system and listening, feeling the stresses of the day wash away. I truly love being a lover of music, the arts.....as a product of them growing up, and even a music major in college (before switching to business and finding my career in healthcare sales/leadership), music has always been core and foundational in my life. It is good to be us!
Thank you again, fellow Audiogoners!
Sincerely,
Jason Dvorak |
ok, one more question. I've blown a few fuses now ont he amp.....wondering if there is "dirty" power, and/or do I need a line conditioner/filter of some sort. anyone have any knowledge/experience in this area? |
