Krell KST-100 input voltage 120V / 220V

glownode · 20th February 2003, 04:19 AM

I bought a Krell KST-100 while living abroad a few years ago. I've brought it back to the states now and I'd like to switch it back to 120V.

(It was originally a 120V model as indicated on the backpanel.)

The previous owner did the switch to 220V. Anybody know how to put it back on US input voltage ?

> There must be some dip switch combination.

Opening the top I can see two large red switches now in the "1" and "2" positions, but I have no user manual, soooooo......

((Krell wanted $300 to switch it back to US voltage !>

Neutron Bob · 20th February 2003, 05:23 AM

Well, that Krell has some nice looking heat sinks, anyway.

The chassis would make a nice starting block for an Aleph, you know...

Hopefully, someone might have a copy of the manual for you! I'll ask around a bit, and see if any friends have a lead for you!

Bob

Audiofanatic · 20th February 2003, 09:47 AM

Hello my Krell friend,

KRELL is

always like that!
I'v had the same problem with all the preamps I'v had from Krell.

I don't know for shure what the voltage is in the US. but I think 120Volts right?! The Power supply switches have 2 possitions one and two (1&2).
For the Netherlands I'v set both switches to two (2) primary windings in series. Each winding is (dont know for shure) 110 Volts. I think that you'll have to put both switches to 1 and than check the voltage with a volt meter. I'm gona try to check my SBP-64X power suply and will mail you later.
Hold on there! I'll be back in a few minutes! DO NOT CHANGE ANYTHING YET!

Audiofanatic

Audiofanatic · 20th February 2003, 10:04 AM

GLOWNOTE,
I think we have a problem! My Krell power suply has a 230/115 volt switch, nothing more.
But! The transformers say 1 to 2 = 115 volts and 3 to 4 = 115 volts.
And looking at the fact that you can use your amp in 4 different input voltages, I recomend you to wait till someone that (use to)have a KRELL Amp is able to help you with it. I did the best I could. Sorry!

I hope/know you will succeed on this forum.

Audiofanatic

glownode · 20th February 2003, 01:05 PM

Thanks all. So I guess I will have to wait. Yes. if I had the patience I could build an Aleph or something. But not now.

Funny thing is, Martin Logan is doing the speakers for free. Krell must be into profit maximization.

Audiofanatic · 20th February 2003, 02:48 PM

A Martin Logan! Thats great! The CLS?
I'v had a CLS I, whow what a speaker

In The Netherlands when you bring it to the ML service You'll have to pay atleast €2500,= to have new panels, labor not incl. Thats why I started making my own ESL. It looks like the Final 1.4 but shorter and with much more db!
Thats a wonderfull gift from Gayle Sanders!

Gr.

Audiofanatic.

fmak · 22nd February 2003, 04:31 PM

[

((Krell wanted $300 to switch it back to US voltage !>

[/B][/QUOTE]
--------------------------------------------
Just pester them and eventually they will tell you. I confronted Dan Agistino at a hi fi show for the £150 his agents in UK wanted to charge me and his minions emailed me the combination the next day.

I think manufacturers who do this are breaking consumer laws. If you are in the US can't you use the freedom of informationnlaws?

20th February 2003, 04:19 AM	#1
glownode diyAudio Member Join Date: Feb 2003 Location: over the rainbow	Krell KST-100 input voltage 120V / 220V I bought a Krell KST-100 while living abroad a few years ago. I've brought it back to the states now and I'd like to switch it back to 120V. (It was originally a 120V model as indicated on the backpanel.) The previous owner did the switch to 220V. Anybody know how to put it back on US input voltage ? > There must be some dip switch combination. Opening the top I can see two large red switches now in the "1" and "2" positions, but I have no user manual, soooooo...... ((Krell wanted $300 to switch it back to US voltage !>

20th February 2003, 05:23 AM	#2
Neutron Bob diyAudio Member Join Date: Jul 2002 Location: San Clemente, CA	Idea! Well, that Krell has some nice looking heat sinks, anyway. The chassis would make a nice starting block for an Aleph, you know... Hopefully, someone might have a copy of the manual for you! I'll ask around a bit, and see if any friends have a lead for you! Bob

20th February 2003, 09:47 AM	#3
Audiofanatic diyAudio Member Join Date: Oct 2002 Location: The Netherlands, Utrecht	Hello my Krell friend, KRELL is always like that! I'v had the same problem with all the preamps I'v had from Krell. I don't know for shure what the voltage is in the US. but I think 120Volts right?! The Power supply switches have 2 possitions one and two (1&2). For the Netherlands I'v set both switches to two (2) primary windings in series. Each winding is (dont know for shure) 110 Volts. I think that you'll have to put both switches to 1 and than check the voltage with a volt meter. I'm gona try to check my SBP-64X power suply and will mail you later. Hold on there! I'll be back in a few minutes! DO NOT CHANGE ANYTHING YET! Audiofanatic __________________ Be nice to animals.

20th February 2003, 10:04 AM	#4
Audiofanatic diyAudio Member Join Date: Oct 2002 Location: The Netherlands, Utrecht	GLOWNOTE, I think we have a problem! My Krell power suply has a 230/115 volt switch, nothing more. But! The transformers say 1 to 2 = 115 volts and 3 to 4 = 115 volts. And looking at the fact that you can use your amp in 4 different input voltages, I recomend you to wait till someone that (use to)have a KRELL Amp is able to help you with it. I did the best I could. Sorry! I hope/know you will succeed on this forum. Audiofanatic __________________ Be nice to animals.

20th February 2003, 02:48 PM	#6
Audiofanatic diyAudio Member Join Date: Oct 2002 Location: The Netherlands, Utrecht	A Martin Logan! Thats great! The CLS? I'v had a CLS I, whow what a speaker In The Netherlands when you bring it to the ML service You'll have to pay atleast €2500,= to have new panels, labor not incl. Thats why I started making my own ESL. It looks like the Final 1.4 but shorter and with much more db! Thats a wonderfull gift from Gayle Sanders! Gr. Audiofanatic. __________________ Be nice to animals.


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20th February 2003, 01:05 PM	#5
glownode diyAudio Member Join Date: Feb 2003 Location: over the rainbow	Thanks all. So I guess I will have to wait. Yes. if I had the patience I could build an Aleph or something. But not now. Funny thing is, Martin Logan is doing the speakers for free. Krell must be into profit maximization.

22nd February 2003, 04:31 PM	#7
fmak diyAudio Member Join Date: May 2001 Location: London UK	Re: Krell KST-100 input voltage 120V / 220V [ ((Krell wanted $300 to switch it back to US voltage !> [/B][/QUOTE] -------------------------------------------- Just pester them and eventually they will tell you. I confronted Dan Agistino at a hi fi show for the £150 his agents in UK wanted to charge me and his minions emailed me the combination the next day. I think manufacturers who do this are breaking consumer laws. If you are in the US can't you use the freedom of informationnlaws?

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