Just got my new $80 attenuator -- The Power Plug

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*** WARNING *** Long-winded review (sorry)...

So I've been searching for a decent attenuator for several weeks -- mostly on Ebay. I was mostly looking at the Dr. Z Airbrake, Weber Mass 150, THD Hotplate, Scholtz Power Soak, and Marshall Power Brake (in that order). But most were going for prices more than I wanted to pay for something that I couldn't try out first.

Then I stumbled on The Power Plug, which seems to be made (I think) and distributed by Recycled Sound out of Arkansas. They had a little video link in the auction and it seemed like it was worth a try for $80 shipped, so I bought one last Sunday. I received it today via UPS. He shipped it out right away and I'm happy that I got it today because I have a gig tomorrow night that I want to use it at.

So I did a quick run through with it tonight so I wasn't trying it for the first time in the harsh gig environment. First, I tried it out on my Marshall Class 5. The external speaker output of that combo is 16 ohms, and I bought a Power Plug rated for 8 ohms (they also sell 16, 4, and maybe 2 -- can't remember). But I've been told by a Marshall tech on a Marshall forum that it's okay to run the Class 5 into speakers of less than 16 ohms. So I ran the 8 ohm Power Plug between the 16 ohm Class 5 and my 8 ohm Bogner oversize 2X12 cab. No problems. I dimed the Volume on the Class 5 and checked the volume. Yup... VERY loud for 5 watts. So I flip one of the -6db switches on The Power Plug and it cut the volume in half (or maybe even 2/3). Played for a while with no prob. Then I flipped the other -6db switch and it really cut it down. Definitely cuts the volume! I played around with the switches and the volume drop/gain was always consistent. The tone didn't seem to change much either. But there's definitely a difference at least in terms of moving that massive air with the ampy at full volume, versus not moving as much air. It's gonna make a difference. But the smoth OD of the Class 5 driven hard was definitely there even at -12db. Which was probably 25% or less of the unattenuated volume.

So now that I'd deemed it to be somewhat safe, I moved the attenuator between my Bogner Shiva and the Bogner cab. I set the head's output at 8 ohms, the Power Plug is 8 ohms, and the cab is 8 ohms. I run the Shiva's gain channel volume at about 1:00. So in my house the most I can run the Master Vol at is probably about 10:00. And that's just where it really starts to sound awesome. So I went ahead and set the Master at 12:00, which is WAY too loud for me to get away with and not have the neighbors call the cops. I then flipped the first switch and it cut the volume in less than half. Sweet! Played for a while and verified that there were no tone loss issues. Then flipped the second switch and it really cut the volume. I experimented with running the Shiva's master all the way up to 2:00. That's as much as I wanted to push it because I don't wanna blow it up. But thigs sounded great.

I didn't play it for more than 15 minutes or so though. I usually try to not play at all the night before a gig -- so my fingers are fresh and I'm chomping at the bit to play. So I didn't want to put my usual 1-2 hours in tonight. But what playing I did, I was VERY satisfied with The Power Plug! I will really be putting it through its paces tomorrow night at the gig. I only intend to use one -6db switch for the night. That ought to be plenty as I have a drummer to keep up with. But tomorrow night will be the full test of this thing. So far, this was definitely $80 WELL SPENT! I will finally be able to really enjoy my 80 watt Shiva when playing at home now.

I will post a follow-up to this on Sunday (the day after my gig) to let you all know how it works-out at the gig. Below is a link to the Ebay auction where I bought this unit. And then a few pics that I snapped tonight of this unit both assembled, and somewhat disassembled. I couldn't disassemble it more without worrying about screwing something up. Both sides are the same. Just a couple of little "doohickies" in there to "suck up" power and some capacitor or diode or something between the two sides. Sorry for my lame description, I'm not much of an EE type.

http://cgi.ebay.com/POWER-PLUG-6-12-Attenuator-Brand-NEW-/150445867273?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item230745c109

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Re: Just got my new $80 attenuator -- The Power Plug

Nice. Attenuation can be a tube lover's best friend. Seriously. A lot of good tube heads sound freakin great on 4, and still good but not as great on 1. Turns out that 50+ Watts isn't ideal volume wise for a lot of applications, but the tone is there.
I'm interested in the webers more because they have 2 options that many others seem to leave out one or both of: variable attenuation (a volume knob) and switchable impedance. Also a lot of the weber ones have a +3/+6 db treble boost, for if you find the tone IS being sucked a lil by the attenuator.
I got a 25W weber load dump for $75 I think, back when I got my first tube amp (blackheart 5W, no master volume). I'd love something from weber that'll handle my new DSL head. That thing RIPS with the volume on 4 (never turned it up to 5) but that's at least 2x as loud as I can get away with in the apartment I'm gonna have to move into.
Good score and happy jamming.
 
Re: Just got my new $80 attenuator -- The Power Plug

I probably should get something like that for my Vox so I can run it hotter, but with the Shiva it has such a good master volume that I've never bothered. It does kinda scare me how many stories I've heard about attenuators frying amps.
 
Re: Just got my new $80 attenuator -- The Power Plug

cool that it works out great and is cheaper than other options. I might need one for my 100 watt Laney AOR head
 
Re: Just got my new $80 attenuator -- The Power Plug

I probably should get something like that for my Vox so I can run it hotter, but with the Shiva it has such a good master volume that I've never bothered. It does kinda scare me how many stories I've heard about attenuators frying amps.

Scares me too. But I haven't actually read any stories -- just heard them referenced. Guess I should do some research on attenuator horror stories.

The Shiva sounds great where ever I set the master, but there's no denying (at least on mine) that the sound when it's below about "4" is decent, whereas above is just AWESOME!
 
Re: Just got my new $80 attenuator -- The Power Plug

Wow...

Did a full, 4.5 hour club gig last night and all I can say is... WOW!

For one thing, this was my first gig with the Bogner Shiva and Bogner oversized 2X12 cab. Did I say WOW?!?!?

For another, The Power Attenuator worked perfectly! I would say that I used it about 90% of the night. I only used it with one -6db switch on though. I didn't want to push it by running the master full-out all night and using all 12db of attenuation. I've heard that is the type of scenario that gets you a blown amp. I wasn't miked at all. And without any attenuation, I could only do about "2" to "3" on the master volume (with crunch channel volume at about "6"). But with one switch turned-on on the attenuator, I could run the master on the Shiva at 3-5 all night. Which was enough to get it really purring and sounding awesome. The Shiva comes into its own from "3" on up. Any lower and it's not really working hard enough to come alive.

Anyways... I ran a fan on the back of my rig all night, to save power tube life and also just because the Shiva really heats up with air blowing on it. Some of the fan air was blowing on the attenuator too. Which is good, because it will generate some heat depending on how hard it's working. But it never got above just barely warmer than room temp because of the fan blowing on it. I could barely tell that it was generating heat.

It didn't change the tone noticeably at all at gig volume. If you're running both attenuator switches for bedroom volume, you might notice a hair of tone change. I dunno. I really didn't notice much at home. But I certainly didn't notice it at all last night at the gig. This thing is truly as-described! Which surprises me because you normally do get what you pay for. I'm VERY happy with this thing and will no-doubt buy another one or two in different impedences so I can use it with other amps.
 
Re: Just got my new $80 attenuator -- The Power Plug

That so cool I'm glad it worked for you. I'm going have to try it will my half stack
 
Re: Just got my new $80 attenuator -- The Power Plug

very cool! seems like more Attenuators are becoming avail.. Please post a follow up when you get a chance to really put thru its paces
 
Re: Just got my new $80 attenuator -- The Power Plug

very cool! seems like more Attenuators are becoming avail.. Please post a follow up when you get a chance to really put thru its paces

Another week of use and another gig on the books. Same impressions as at first. Doesn't seem to color the tone to my ears and works great. This gig would have been a nightmare with the full onslaught of the Shiva's 80 watts -- as it was indoors in a room full of wood walls, floors and ceiling.

For those looking for a much less expensive alternative to the Dr.Z, Weber, and THD attenuators, I would recommending seriously considering this unit. I intend to add a 4ohm and maybe even a 16ohm unit to my 8ohm unit.
 
Re: Just got my new $80 attenuator -- The Power Plug

sounds great! Any reason to believe this isnt safe for the amp?? I have crappy luck this way. . I dont wanna blow my amp.
 
Re: Just got my new $80 attenuator -- The Power Plug

sounds great! Any reason to believe this isnt safe for the amp?? I have crappy luck this way. . I dont wanna blow my amp.

ya I remember B2D properly used an attenuator and his amp blew,

I get that they are designed to attenuate, but I still wonder...
 
Re: Just got my new $80 attenuator -- The Power Plug

In most cases, an attenuator itself isn't the cause of blowing up an amp, or, frying tubes. It's the USE of it that can cause problems. btw, I use a Brake lite on my Fender amps.
It's when you really push an amp, for a period of time, then, whatever weakness/issues your amp has will manifest itself, sometimes by releasing smoke.
 
Re: Just got my new $80 attenuator -- The Power Plug

attenuators do encourage the running of ones amp on 11, after all. You buy them so that you can do that and not die from SPL.

All the testing in the world can't make it 100% sure that every component in your amp can take being run full bore for 4 hours at a time, 2 nights a week for 4 years.
 
Re: Just got my new $80 attenuator -- The Power Plug

I Spose diming the volume/gain is not doing your amp any favors ;)
 
Re: Just got my new $80 attenuator -- The Power Plug

I've definitely tried to keep the Master Volume on the Shiva below "7" when running the attenuator. The Shiva sounds great above 4 or 5, so there's no need to dime the Master. Also, I try to get away with just using one 6db switch most of the time. To use both switches encourages running the master hotter. I'm still in the honeymoon stage with the Shiva, so I will admit that I'm taking it easy with the attenuation. Would REALLY hate to blow my baby up. But I've definitely used 6db of attenuation for two entire 4+ hour gigs without any issues, not to mention a bunch of 1-2 hour practice sessions.
 
Re: Just got my new $80 attenuator -- The Power Plug

Awesome! hopefully paypal with release my funds during this lifetime and I can get one..
 
Re: Just got my new $80 attenuator -- The Power Plug

I just ordered one..

Looks like they are using your feedback and this thread on the ebay listing.. You gettin a kickback??:smokin:
 
Re: Just got my new $80 attenuator -- The Power Plug

I just ordered one..

Looks like they are using your feedback and this thread on the ebay listing.. You gettin a kickback??:smokin:

I saw that. He did shoot me a message telling me he was gonna do that. No money though... :(

I will admit that my ears aren't as refined as some, so there may be others that hear it affecting their tone and don't like it. But I do like it. Like the seller says... it's gonna affect your tone in that you're not moving as much air as you are at normal volume. But outside of that I really like mine. And believe me when I say that I love my Shiva amp enough that if this thing was affecting my tone noticeably, or feeling like it was gonna blow my amp up -- I'd have kicked it to the curb immediately and dogged it on the forums. But I just don't think that you can find anything even close to this thing in terms of cost that does such a great job at reducing the volume. Shortly, I'm gonna add a 4ohm unit to the 8ohm one I already have.
 
Re: Just got my new $80 attenuator -- The Power Plug

Cool! Cant wait to see how the JCM800 sounds with it opened up a bit. I ran it on 7 once in the house and sounded amazing except the sensation my head was going to explode.. haha
 
Re: Just got my new $80 attenuator -- The Power Plug

Cool! Cant wait to see how the JCM800 sounds with it opened up a bit. I ran it on 7 once in the house and sounded amazing except the sensation my head was going to explode.. haha

Good deal. I used mine again last night. Switched back and forth between only having one 6db switch engaged and having both engaged for 12db. I try to just use 6db live. The Shiva sounds awesome at anything above "4" or so on the master, so one does not need to dime it. I only dimed it once. But I try to stay away from anything higher than "7" on the master so I'm not endangering a blow-up with the attenuator engaged. Just not worth it to me to risk it and absolutely nothing to be gained from maxing-out the volume. Most of the time, even live, I am below "5" on the master. I must not be working the attenuator too hard either, because the hottest it's ever gotten has just been warm to the touch.

Will be curious to see what your impressions are running it with your JCM800. Keep me posted!
 
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