Rack washers, humfrees, etc...

Vince · 05-08-2008, 04:32 PM

So what do you guys use for the screw washers in your racks.

For years I've used Humfrees, these:

Humfree Rack Tabs from zZounds.com!

But I find it incredibly difficult to install these with big 40 pound power amps like my 50/50 or 2:90. They slide around too much when I'm trying to get the screw in the hole.

Would regular plastic washers work just as well in isolating the rack unit from the rack chassis? What do you use?

starsnuffer · 05-08-2008, 05:18 PM

They're not necessary for properly designed equipment. If you're using a lot of 80's stuff, you might find them useful.

-W

Leon · 05-08-2008, 06:06 PM

what if you set the back of the rack on the floor, and mounted them from the "top"?

Autofate · 05-08-2008, 06:12 PM

yea, those were a bitch with my 2:100, but a flat head screw driver used as a pry bar and a lot of pinched fingers got them in.

I have in the past used nylon washers on the front and back of the rack screws to isolate, but the problem is the threads can touch the inside of the ear and of course, conduct through to the rails.

edit whoops wrong link

these look like what you need

Vince · 05-08-2008, 07:08 PM

Quote:

Originally Posted by Leon

what if you set the back of the rack on the floor, and mounted them from the "top"?

that's the only way to do it, but still with a small rack like mine, 6 spaces, it's a tight fit in there. I usually have to remove the rack piece above it too just to get it in there, and at least one of the damn humfrees ALWAYS slips when putting the amp in the rack. No fun.

Regor · 05-08-2008, 07:20 PM

Hey vince, from what I remember hearing over at Huge Racks Inc., you shouldn't use Humfrees on your power amp, unless it specifically is causing a problem.

Vic Rattlehead · 05-08-2008, 07:35 PM

Is it bad if the rack unit is touching the rack rails or something? Sorry, this is the first time I've ever heard of this. I just use little nylon washers that came with my rack and I just use them on the front. I have nothing between any of my rack units and the rails.

Vince · 05-08-2008, 09:24 PM

You can get a 60-cycle hum, basically a loud buzzing sound if some rack units are not raised from the rack chasis. Some racks, some units this is a problem, others not so much.

I've just always played it safe and used humfrees on all my gear.

Hcash · 05-08-2008, 10:39 PM

I never heard of that either...

Vic Rattlehead · 05-09-2008, 01:58 AM

Quote:

Originally Posted by Vince

You can get a 60-cycle hum, basically a loud buzzing sound if some rack units are not raised from the rack chasis. Some racks, some units this is a problem, others not so much.

I've just always played it safe and used humfrees on all my gear.

Hmm thats never been an issue for me and I've been using a rack setup for well over a year. Guess I'm lucky. I'll be aware of it in the future though.

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05-08-2008, 04:32 PM	#1 (permalink)
Vince Vince is X!!! • Super Moderator • Join Date: Jul 2004 Location: Tempe, AZ Posts: 7,415 Real Name: Vince Main Seven: Ibanez Rig: Rocktron / Mesa Thanked: 88	Rack washers, humfrees, etc... So what do you guys use for the screw washers in your racks. For years I've used Humfrees, these: Humfree Rack Tabs from zZounds.com! But I find it incredibly difficult to install these with big 40 pound power amps like my 50/50 or 2:90. They slide around too much when I'm trying to get the screw in the hole. Would regular plastic washers work just as well in isolating the rack unit from the rack chassis? What do you use? THE ASYLUM VINCELUPONE.COM

05-08-2008, 06:06 PM	#3 (permalink)
Leon {##[====:::. • Super Moderator • Join Date: Jul 2004 Location: The Ohio Crew Posts: 12,110 Main Seven: RG7620 of Doom Rig: Mesa / Sovtek Thanked: 73	what if you set the back of the rack on the floor, and mounted them from the "top"? noodles- "Ohio: It's Not Like We're Iowa"

05-08-2008, 07:20 PM	#6 (permalink)
Regor KITT Rules! Join Date: May 2005 Location: Detroit Rawk City Posts: 3,515 Real Name: Mr.Luxury Yacht Main Seven: Ibz RG2127X (The Japanez) Rig: TriAxis/G-Force/2:90 Thanked: 49	Hey vince, from what I remember hearing over at Huge Racks Inc., you shouldn't use Humfrees on your power amp, unless it specifically is causing a problem. *Metal... Nuff Said!!* NEXT SHOW: Summer Hiatus Website: www.justdefymetal.com MySpace: myspace.com/justdefymetal

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05-08-2008, 05:18 PM	#2 (permalink)
starsnuffer ss.org Regular Join Date: Jun 2006 Location: Bay Area, California Posts: 438 Main Seven: RG7CST, DC747 Rig: H&K Triamp mkII Thanked: 5 / 1	They're not necessary for properly designed equipment. If you're using a lot of 80's stuff, you might find them useful. -W

05-08-2008, 06:12 PM	#4 (permalink)
Autofate ss.org Regular Join Date: Oct 2007 Location: Ft Collins Colorado Posts: 74 Thanked: 6	yea, those were a bitch with my 2:100, but a flat head screw driver used as a pry bar and a lot of pinched fingers got them in. I have in the past used nylon washers on the front and back of the rack screws to isolate, but the problem is the threads can touch the inside of the ear and of course, conduct through to the rails. edit whoops wrong link these look like what you need

05-08-2008, 07:35 PM	#7 (permalink)
Vic Rattlehead ss.org Regular Join Date: Nov 2006 Location: Oregon Posts: 536 Real Name: Sean Main Seven: LTD H-307 Rig: JMP-1 -> 50/50 Thanked: 13	Is it bad if the rack unit is touching the rack rails or something? Sorry, this is the first time I've ever heard of this. I just use little nylon washers that came with my rack and I just use them on the front. I have nothing between any of my rack units and the rails.

05-08-2008, 09:24 PM	#8 (permalink)
Vince Vince is X!!! • Super Moderator • Join Date: Jul 2004 Location: Tempe, AZ Posts: 7,415 Real Name: Vince Main Seven: Ibanez Rig: Rocktron / Mesa Thanked: 88	You can get a 60-cycle hum, basically a loud buzzing sound if some rack units are not raised from the rack chasis. Some racks, some units this is a problem, others not so much. I've just always played it safe and used humfrees on all my gear.

05-08-2008, 10:39 PM	#9 (permalink)
Hcash These Eyes Are Blind Join Date: Aug 2007 Location: Winston Salem, NC Posts: 365 Real Name: Holden Main Seven: n/a Main ERG: Ibanez MMM1 Rig: 2112 > Engl 920/50 Thanked: 7	I never heard of that either...

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Rack washers, humfrees, etc...