Lampizator Pacific
- Thread starter Mike
- Start date
Re: Lampizator Pacific arrives at Suncoast Audio
Glad you asked. I was with the cable guy and he removed a larger cylindrical tube that was inline with the incoming cable line which he told me was a
Some kind of filter. And that cable line comes into the house feeding a cable box and router that is less than 2 feet from the lampizator.
Glad you asked. I was with the cable guy and he removed a larger cylindrical tube that was inline with the incoming cable line which he told me was a
Some kind of filter. And that cable line comes into the house feeding a cable box and router that is less than 2 feet from the lampizator.
Re: Lampizator Pacific arrives at Suncoast Audio
Ok unplug the router as a start. Also I assume you tried a simple ground wire from dac to preamp ? Next try a different pair of rca cables too. I’m a noise freak as I feel any noise robs us of dynamics and low level details.
my router was 5 feet or so and yes it made my dac hum , buz and sounds i never heard lol.
I also found emi from other equipment can also make noise on tubes
I had a large power conditioning device 5 feet above a tube device. Drove me nuts. Once I moved the device out from under it. It stopped. Post results we all need help from others who have issues.
Ok unplug the router as a start. Also I assume you tried a simple ground wire from dac to preamp ? Next try a different pair of rca cables too. I’m a noise freak as I feel any noise robs us of dynamics and low level details.
my router was 5 feet or so and yes it made my dac hum , buz and sounds i never heard lol.
I also found emi from other equipment can also make noise on tubes
I had a large power conditioning device 5 feet above a tube device. Drove me nuts. Once I moved the device out from under it. It stopped. Post results we all need help from others who have issues.
Re: Lampizator Pacific arrives at Suncoast Audio
@Alrainbow
My savior. I’ve been asking about the ground post in my Pacific Dac to no avail. Could you precisely describe what AWG and type of wire to use and to what location on the preamp shoudl Inconnect to the grounding post on the pacific Dac. I will also try the rest of the fixes.
@Alrainbow
My savior. I’ve been asking about the ground post in my Pacific Dac to no avail. Could you precisely describe what AWG and type of wire to use and to what location on the preamp shoudl Inconnect to the grounding post on the pacific Dac. I will also try the rest of the fixes.
Re: Lampizator Pacific arrives at Suncoast Audio
Don’t worry about gauge for now.
Don’t daisy chain ground wires.
Run grounds to one point and from this point a ground wire to outlet power supplying the audio stuff. This is simple and yes more complex is better. But first make it silent or near it.
14 or 18 gauge is fine as a start.
Also put stereo on low volume but enough to hear hum.
Then start to ground to common point one at a time. Goal is silence on all used inputs.
Don’t worry about gauge for now.
Don’t daisy chain ground wires.
Run grounds to one point and from this point a ground wire to outlet power supplying the audio stuff. This is simple and yes more complex is better. But first make it silent or near it.
14 or 18 gauge is fine as a start.
Also put stereo on low volume but enough to hear hum.
Then start to ground to common point one at a time. Goal is silence on all used inputs.
Re: Lampizator Pacific arrives at Suncoast Audio
I posted a picture of the rear of your premap. The tiny black screw is your ground binding post
I’ll post all pics high lighted in one post today.
then attach a simple diagram and list to buy.
remember this is a simple way to help you resolve hum noises
i don’t sell products and do know many products sold are very very good.
One being made by Miguel of Tri point.
next post soon.
I posted a picture of the rear of your premap. The tiny black screw is your ground binding post
I’ll post all pics high lighted in one post today.
then attach a simple diagram and list to buy.
remember this is a simple way to help you resolve hum noises
i don’t sell products and do know many products sold are very very good.
One being made by Miguel of Tri point.
next post soon.
A couple of questions. Describe how the power is setup ? How many circuits and outlet layout please
the amp does not have a ground post and this is ok in general.
are you using bal interconnects from preamp to amps ? Even if converted at pre amp or amp and how long ?
the amp does not have a ground post and this is ok in general.
are you using bal interconnects from preamp to amps ? Even if converted at pre amp or amp and how long ?
Yes please repost picture, we can’t see it.
As for connection:
Amp, preamp, Dac, NAS, streamer plugged into a power conditioner and power conditioner plugged into a dedicated duplex.
RCA cables from preamp to: Amp and DAC.
NAS connected via ethernet to router switch
Streamer connected via Ethernet to router switch; streamer connected to DAC via USB
As for connection:
Amp, preamp, Dac, NAS, streamer plugged into a power conditioner and power conditioner plugged into a dedicated duplex.
RCA cables from preamp to: Amp and DAC.
NAS connected via ethernet to router switch
Streamer connected via Ethernet to router switch; streamer connected to DAC via USB
I spoke with Jeff at Conrad Johnson and was told to first try and isolate the amp and pream by plugging both to the same duplex so they share a common ground, with the long term goal of installing a quadplex and plugging all the major components. I was told that the distance of two separate outlets (ground) causes a loop effect. I’ll report back.
Jack
Active member
What two separate outlets? You told us everything was plugged into one line conditioner and then into one outlet. Try what Jeff suggested but don't think that's it. What I suggested this morning would have answered your questions about the cause of the hum in a few minutes if it was power related. if you have a bad IC somewhere in the chain then that's another and different method of search.
I have two separate lines one with its own breaker going to a single duplex that’s located next to each other. Jeff instructed me to use just one duplex for both the amp and preamp; I did this and I’m not getting any static hum from the speakers. He said the long term goal is to make the single duplex into a quad rather so that the 4 outlets will share a common ground.
Jack
Active member
So you ran two dedicated lines and put the outlets right next to each other not knowing they are apparently on a different phase. If you in fact had all the gear plugged into the same line conditioner then that wouldn't have been the problem but if you had everything but the amp in the line conditioner in one duplex and the amp straight into the other duplex then there was your problem. Different explanation than earlier but glad you figured it out. As to what Jeff suggested about the outlets that is better answered by Al or Rex by PM as they are electricians. It may be simple or not.
With my previous GAT1 and ART monos, I had to put everything on the SAME outlet. One plug into the wall with multiple outlets on it for everything. No hum! I thought that's what we were telling you. EVERYTHING on ONE outlet.
The quote below was from January 18th.
The quote below was from January 18th.
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