2. amps-preamps
  3. 184343-67361

System Static Issue

Have an interesting situation in my system that I have at my work location. The system is leftovers from other upgrades but since it is used primarily as background it fullfills that quite well.

Recently, when I start it up in the mornings, while the preamp is in mute mode and volume is at 0, with no input signal, I will get a static sound out of both speakers, intermittent, but there.

I am assuming it is the tubes in pre (ARC LS17 se)

Have checked all connections and moved each (without static) to make sure that was not the problem.

Set up is used either to stream from internet or through a PSA Jr from SSD with music library on, through JRiver.

Before I get new tubes wanted to see if there are other issues I should consider.

ARC LS17se

Bedini 100/100

PSA DSD DAC Jr

Shahinian Arc

Furman Power PL Plus

128x128stevea1298
nevada_matt
155 posts
 

Disconnect the network.  Then try just amp, then amp+pre-amp.  Then reconnect network.

stevea1298's avatar
stevea1298 OP
48 posts
 

jea, good thought, can start them up one at a time

nevada, will start up eachone at a time, network is connected to DAC, so I can kill that.

Forgot to mention I have a bluetooth receiver to stream from computer to pre.

As pre is muted until it warms up, I have a little difficulty thinking it is tubes, but submitted question to ARC support....just in case

 

Ordering Deoxit to clean contacts..

vinylfan62
119 posts
 

My Bedini 100/100 has started to make a thump on startup. It’s not a static sound so I’m not saying it’s the problem you are having or that it’s the amp. I am saying mine is getting old and I know it needs updating. I’ll be interested to see your findings. 

audphile1's avatar
audphile1
4,920 posts
 

Start up the ARC preamp first, wait until it get out of mute after its start up cycle completes, put it in mute manually, then power on your amp. Power on order - source, preamp then amp. Power off order - amp, preamp, source. 
As to your problem, most likely tune(s) in the ARC preamp need to be replaced. So it’s important to follow the power on and power off order. 
 

stevea1298's avatar
stevea1298 OP
48 posts
 

Ok, so for today I started the amp first and nothing but dead silence. Now ill turn that off and start preamp as audphile1 suggested, qallow it to warm up and take it out of mute and put back in manually and see what happens

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