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Post subject: New HRD question
Posted: Fri May 23, 2008 8:51 am
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So I bought the HRD but have osme issues with it. First issue is when I play it loud around 4 somethign beggins to rattle in the amp. What could this be? Also the clean channel begins to distort around 4.5 volume. Is this the volume it should be distorting at or should I have mor head room.


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Posted: Fri May 23, 2008 10:30 am
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The rattle could be tube rattle. It does start to break up around 4.5-5. A tube change can get you a little more headroom. It wasn't designed to be a really clean amp. A Twin Reverb is another story. My Twin was nothing but clean. You would go deaf before natural tube distortion would kick in. I actually wanted an amp that would break up early, that's why I bought the HRDlx.


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Posted: Fri May 23, 2008 10:32 am
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You mean Deluxe or DeVille? 1x12, 4x10? MY DeVille 410 starts to break up on the clean around about 10 and that's going in the high input, with the volume knob helping with the dirt a little.

Are you using a humbucker or a single coil? Humbuckers tend to distort early, but around 4 that would still be kinda early though.

As far as that rattling goes, check and see if all your speaker screws are tight, better yet check all the screws your able to get to.


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Posted: Fri May 23, 2008 10:39 am
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I'm talking the Deluxe 1x12. The Deville should be cleaned longer. Don't over tighten the nuts on the speakers, you can really open up another can of worms. I would really check for tube rattle. Play a note and touch the tubes one at a time gently with a pencil eraser. It the rattle stops then it's tube rattle. If it's tube rattle, sometimes tube dampeners will help. It did with most ob my combo amps.


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Post subject: TUBE DAMPERS???
Posted: Tue May 27, 2008 3:20 pm
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My HRD White Lightning buzzes/rattles when cranked over 4 1/2. Where can I get tube dampers? Did you put them on your pre-amp or power tubes? What are the dampers made of ? Fender puts a piece of foam rubber around the pre-amp tubes on the HRDeluxe. Maybe that's not enough? Where can I get the dampers?

*** this is for the guy whose amp breaks up early.......if you have BLUE power tubes they are designed to break up early (Groove Tube 1-3 rating) if you have WHITE tubes (GT 4-7 rating) it will start to break up later. I work at a Guitar Center and if you buy #7 GE Groove Tubes or buy some higher end JJ,s you will get more clean volume before breakup. FYI


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Posted: Tue May 27, 2008 8:19 pm
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I bought mine from here http://herbiesaudiolab.home.att.net/reviews2.htm
They work fine. You can get O rings for this purpose on ebay too.
http://www.thegearpage.net/board/archiv ... 76390.html more info. Good Luck


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Post subject: Halo vs. O-RINGS
Posted: Mon Jun 02, 2008 11:05 am
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Did you buy the Halo's or the O-rings? Can you still crank the amp past 5 without buzz and rattle? Did you put them on both the power and pre-amp tubes?


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Posted: Tue Jun 03, 2008 9:09 am
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I only had a problem with the 6l6's. I bought the Halo's. Thee O rings should work just fine. Like I said I have no problems now. It was only a problem when the volume was lower. At band volume, you couldn't notice it. The O rings may work better and are cheaper. Do you still have the piece of foam on the preamp tubes? It 's supposed to come with the amp to dampen the microphonics.


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Post subject: TUBE DAMPERS
Posted: Tue Jun 03, 2008 8:44 pm
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Yes, I still have the foam on the pre-amp tubes. I also bought the Groove Tubes SAG Fender soft touch kit pre-amp tubes, which I like better than the stock ones. Seemed to tame the distortion and smooth it out. I will buy the Halo's for the 6L6's after reading all the reviews you recommended. What 6L6's are you using?


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Posted: Wed Jun 04, 2008 6:42 am
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I'm using JJ's for power and preamp. I got them from Eurotubes. They have a kit called Blues Option #1. I got a little earlier breakup and it really tamed the drive and more drive channels and made them usable. The stock tubes were awful and I knew that when I tried the amp out. I tried out a friends with JJ's installed so I knew it had some potential. The amp had Sovtek 5881 power tubes and GT preamp tubes. It was just too abrasive with my guitars. I have an original 72 maple neck Strat since it was new, a 63 Supro Martinique, an original 57 Dano U1 and an Ibanez Artcore AS73. It sounded best with the humbuckers on the Artcore. They were ok with the Supro until I switched on the Piezo pickup in the bridge and it went into uncontrollable feedback.
The JJ's fixed it for me. They may not for you. It depends on the music you play and tone you're looking for.
I use 2 Halo's per power tube. It took the tubes about 6 month's of gigging to develop a rattle.
Good Luck


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Posted: Wed Jun 04, 2008 7:55 am
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If you're looking for a more "retro" vibe from the HRD, try some TAD 6L6WGC power tubes and a couple of JAN GE5751s in the preamp.
They'll also tame the OD "channel", whilst providing some of that elusive warm but airy sparkle from the clean setting.
It's partly due to the sonics of the tubes themselves... but largely down to the way the reduced voltage gain of the 5751 alters the gain structure of the whole circuit. The biggest problem with the HRD and many other modern amps for some folks is that it has too much gain. Mainstream designers have become rather too obsessed with gain over the last couple of decades...and it almost always comes at the expense of real tone.

The well known Hot Rod series "tone stack mod" works partly for the same reason.It dumps more signal to ground and therebye reduces gain.
It also allows a better emulation of the classic Fender scooped response and makes the controls appear more responsive.


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