jea48

Responses from jea48

Have you ever been blocked by an E seller here?
@stereo5 How about the Link to the ad.... 
Tube life
@ jrod68 OP Any suggestions on tubes other than stock? https://www.audioasylum.com/scripts/d.pl?audio/faq/joes-tubes.htmlhttp://www.audiotubes.com/12at7.htmhttp://www.audiotubes.com/12ax7.htm  
Tube life
Small signal tube life, (example 12AX7 and 12AT7), for new production tubes is about 4000 hours average. NOS signal tubes from the 1950s, 1960s are said to average up to 10,000 hours of life. The average tube life depends on how hard the designer... 
Loud Popping When Preamp Tubes are Touched
When you pull a tube from the socket is there a physical pulling resistance or does the tube pull out easily with little effort on your part?If there is good contact pressure, therein a strong physical pulling resistance it may be the tube pins an... 
Audio Research VT100 MK1 and LS15 HELP!!!
@almarg No Al, I was wrong. The bad thing is I knew better, LOL.... Like I said I must have had a brain fart moment. Here is a picture of the back of a VT100https://www.google.com/search?q=audio+research+XLR+single+ended+shorting+jumpers+for+vt100... 
Audio Research VT100 MK1 and LS15 HELP!!!
My bad! The jumpers install into the XLR balanced input jacks. I must have been having a brain fart. They would have to be removed before the balanced cables could be plugged in. All my posts about the jumpers being installed when using balanced c... 
Audio Research VT100 MK1 and LS15 HELP!!!
Would it damage the system if i dont have jumper connected while using rca? Damage, no.  Read the owners manual why the jumpers should be installed when using RCA single ended ICs.Didn't the seller give you the jumpers for the amp? Surely he ment... 
Audio Research VT100 MK1 and LS15 HELP!!!
kentrent OP35    posts08-29-2019    9:20pm@jea48 yes. The shorting jumpers were removed. I used RCA interconnect. This will effect the sound if jumper not removed? The jumpers MUST BE REMOVED if using balanced ICsThe jumpers Must BE INSTALLED if... 
Audio Research VT100 MK1 and LS15 HELP!!!
Just right now, i used another old 80s preamp from Sony and the sound is boomy boost of full bass and tone control was on neutral (imagine if i crank that bass up). So this confirmed the vt100 is working and my LS15 preamp is not giving that soun... 
Audio Research VT100 MK1 and LS15 HELP!!!
chip_29508 posts 08-29-2019 8:15pm To clarify my earlier post, test the preamp without a load. No input cables attached. No output cables attached. See if the sparking stops.If not, steal a 6922 from the VT100. It has 8. Swap it in for the spar... 
Audio Research VT100 MK1 and LS15 HELP!!!
chip_29508 posts 08-29-2019 8:02pm So... Just a polite correction. The jumpers do not go in the XLR socket. The receptor is separate and apart. See the manual. @chip,Thanks for the shorting pins info. The OP is using balanced ICs. But with that... 
Audio Research VT100 MK1 and LS15 HELP!!!
Same set up, I switched out the arc and use the mac1500 and has a lot of bass response especially low. Switched back to arc and it has about 60% decreased in bass. All speakers wires are all properly connected. Can someone here explain this? http... 
Audio Research VT100 MK1 and LS15 HELP!!!
kentrent OP31 posts 08-29-2019 8:42am @audioconnection the tube flashing and sparking is normal?In your case, imo, no kentrent OP31 posts 08-28-2019 10:14pm So as i was doing all these troubleshooting the LS15 keeps shutting off randomly every... 
Audio Research VT100 MK1 and LS15 HELP!!!
@ kentrentDo you have the manual for the preamp?https://audioresearch.com/ar-package/ls15_manual-pdf/ 
Audio Research VT100 MK1 and LS15 HELP!!!
kentrent OP12 posts     08-28-2019     3:46pm At the seller house setup, he only turn on 30% and i can hear music pretty loud. But when my setup i had to crank up to about 70% to hear loud. Are you 100% sure you have the speaker cables connected...