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hum job

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aa7679

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Posts: 26

Joined: Thu Jan 01, 2009 11:36 am

Post Thu Jan 01, 2009 12:12 pm

hum job

Is anyone familiar with a humming silent knight subwoofer? Constant 60hz hum. Silent Knight???? What was I thinking (too much drinking last night) Its the Knight Shadow
Last edited by aa7679 on Thu Jan 01, 2009 10:09 pm, edited 1 time in total.
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maddmaxxx

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(Pair of Silver 9t's)

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Post Thu Jan 01, 2009 12:48 pm

Re: hum job

-welcome to the Forum, mr aa !!!


-for me hum has generated from the patchcords [faulty grounds, communicating]


-iz the silent knight a lightstar unit ???, as ive heard of the darkstar, i think :-s
-* © Küül ®™ /mx...
-Too hip gotta book
-"Don't BAN me Bro!"...el/doro
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snarffydoggy

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SILVER-7t

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Joined: Tue Feb 12, 2008 7:29 pm

Location: Fairhope, Alabama

Post Thu Jan 01, 2009 12:50 pm

Re: hum job

Welcome to the forum
snarffydoggy
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BillD

User avatar

(pair of) SILVER-7 TUBE AMPs

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Location: The west's most mid-western town, Scottsdale, Arizona

Post Thu Jan 01, 2009 12:50 pm

Re: hum job

I have a True Subwoofer Mk. II and I fixed my hum by tightening the center bolt on the gain pot. It had been in a local shop for about a month when the guy gave up on it. So I brought it home and did that, and it hasn't hummed since.
It should sound like it isn't there!
There is a difference between hearing and listening...
Making life enjoyable through expensive electronics.
_________________
Carver: C-4000 & C-1 preamps, PSC-60 preamp/tuner, TX-11a tuner, M-400 (2), C-500, M-500, M-500t, M-500t Mk.II, A-500x, AL-III loudspeakers (2 pr.)
Sunfire:Theater Grand III processor, Ultimate Receiver, Cinema Grand Signature 400 ~ seven, True Subwoofer Mk. II, D-10 Subwoofer
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aa7679

Newbie

Posts: 26

Joined: Thu Jan 01, 2009 11:36 am

Post Thu Jan 01, 2009 12:55 pm

Re: hum job

aa7679 wrote:Is anyone familiar with a humming silent knight subwoofer? Constant 60hz hum.

No audio connected. Hums when power is applied. Got it from a customer , I said your subwoofer hums all the time . If your just going to throw it away let me take it.
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BillD

User avatar

(pair of) SILVER-7 TUBE AMPs

Posts: 7295

Joined: Wed Jun 06, 2007 8:29 pm

Location: The west's most mid-western town, Scottsdale, Arizona

Post Thu Jan 01, 2009 1:06 pm

Re: hum job

Yeah, mine would hum with no input connected. Seems the body of the pot needs to be well grounded or it picks up hum. It is grounded by it's contact to the plate amp chassis.
It should sound like it isn't there!
There is a difference between hearing and listening...
Making life enjoyable through expensive electronics.
_________________
Carver: C-4000 & C-1 preamps, PSC-60 preamp/tuner, TX-11a tuner, M-400 (2), C-500, M-500, M-500t, M-500t Mk.II, A-500x, AL-III loudspeakers (2 pr.)
Sunfire:Theater Grand III processor, Ultimate Receiver, Cinema Grand Signature 400 ~ seven, True Subwoofer Mk. II, D-10 Subwoofer
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aa7679

Newbie

Posts: 26

Joined: Thu Jan 01, 2009 11:36 am

Post Thu Jan 01, 2009 2:15 pm

Re: hum job

BillD wrote:Yeah, mine would hum with no input connected. Seems the body of the pot needs to be well grounded or it picks up hum. It is grounded by it's contact to the plate amp chassis.

Who named this thing? Silent Knight. I wish it would be silent.Dont speak unless spoken to! Connections arent making a difference.
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BillD

User avatar

(pair of) SILVER-7 TUBE AMPs

Posts: 7295

Joined: Wed Jun 06, 2007 8:29 pm

Location: The west's most mid-western town, Scottsdale, Arizona

Post Thu Jan 01, 2009 2:20 pm

Re: hum job

It should be a Knight Shadow! It was made during Bob's Batman period :lol:
It should sound like it isn't there!
There is a difference between hearing and listening...
Making life enjoyable through expensive electronics.
_________________
Carver: C-4000 & C-1 preamps, PSC-60 preamp/tuner, TX-11a tuner, M-400 (2), C-500, M-500, M-500t, M-500t Mk.II, A-500x, AL-III loudspeakers (2 pr.)
Sunfire:Theater Grand III processor, Ultimate Receiver, Cinema Grand Signature 400 ~ seven, True Subwoofer Mk. II, D-10 Subwoofer
<<

aa7679

Newbie

Posts: 26

Joined: Thu Jan 01, 2009 11:36 am

Post Thu Jan 01, 2009 2:22 pm

Re: hum job

BillD wrote:It should be a Knight Shadow! It was made during Bob's Batman period :lol:

Youre right .Dont know where i got that. What was the batman period?
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aa7679

Newbie

Posts: 26

Joined: Thu Jan 01, 2009 11:36 am

Post Thu Jan 01, 2009 2:24 pm

Re: hum job

BillD wrote:It should be a Knight Shadow! It was made during Bob's Batman period :lol:

Your right. Dont know where i got that. What was the batman period?
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aa7679

Newbie

Posts: 26

Joined: Thu Jan 01, 2009 11:36 am

Post Thu Jan 01, 2009 2:28 pm

Re: hum job

snarffydoggy wrote:Welcome to the forum

Thanks . Didnt expect such a fanbase.
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aa7679

Newbie

Posts: 26

Joined: Thu Jan 01, 2009 11:36 am

Post Thu Jan 01, 2009 2:30 pm

Re: hum job

maddmaxxx wrote:-welcome to the Forum, mr aa !!!


-for me hum has generated from the patchcords [faulty grounds, communicating]


-iz the silent knight a lightstar unit ???, as ive heard of the darkstar, i think :-s

Thanks.
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Jag_97470

SILVER-7 TUBE AMP

Posts: 3380

Joined: Fri Sep 19, 2008 12:06 am

Location: Oregon

Post Thu Jan 01, 2009 2:37 pm

Re: hum job

when I saw the title of the post "hum job" I was expecting pictures! What up? hahahha. Sorry I have nothing to contribute except; Welcome to the forum!
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engtaz

User avatar

"TAZ"

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Joined: Sat Jun 30, 2007 1:43 pm

Location: Tampa, FL

Post Thu Jan 01, 2009 4:46 pm

Re: hum job

Welcome aa7679
engtaz


Carver M4.0T in front channels to Caver AL VI's in SACD & 2 Channel setup
C 16, PT 2400, Slim Device, Carver TX-8, 490T and Rega TT w Grado Gold cart in the 2 channel setup
Bogen SRB20 is computer amp
Carver PM-350 donated for youth church use
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TNRabbit

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(pair of) SILVER-7 TUBE AMPs

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Location: TN Native Languishing in VA

Post Thu Jan 01, 2009 5:42 pm

Re: hum job

Teach it the WORDS, man!!

:D :D
TNRabbit
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