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How to Post on this System

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Steve Kennedy (admin)
Posted on Thursday, September 09, 2004 - 02:33 pm:   

If you wish to reply to a current Topic or start a new subject within a Topic (called a "thread"), simply click on "Start a Thread". Enter a subject and type your message in the "Post:" box.

Under the "" box enter a Username (Your name) and your e-mail address. Leave the Password box blank.

When you select the "Preview/Post Message" button you will see your message formatted as others will see it. If it is all OK, click on the "Post This Message" button and your message will be added.

If you see a problem or wish to add anything, simply scroll down to the entry area below the preview, edit your message and click on the "Preview/Post Message" button again to preview the edited message. Remember to "Post Message" when you are finished.

Documents, Photos and Web Links are all allowed and you can format your message to look as you want it to. Click on "Help/Instructions" at the bottom of the page for detailed formatting information.

I welcome your questions and participation in this forum!


Steve




(Message edited by admin on September 09, 2004)
Collin Riley
Posted on Thursday, April 07, 2005 - 04:54 pm:   

I have what may be a basic question. Is it problematic to plug a tube amp with an output of 4 ohms into an 8 ohm speaker load?
michael kaus
Posted on Friday, April 08, 2005 - 02:27 pm:   

You really should have put this is another area but hey, SINCE I'M HERE, you really wouldn't have any real trouble with that much of a mismatch. Tube amps will typically take a 100% mismatch without too much trouble. I would be hesitant to go the other way though(2 ohms), although the fender amps put their stuff in parallel and if they had a 4 ohm load internally, you would have a low load using an external speaker and they designed it that way so you pays yo' money and you takes yo' chances! Go for it. Mike.
Collin Riley
Posted on Friday, April 08, 2005 - 05:04 pm:   

Thanks Michael,

Yeah I am definitely new and I did put this in another area, my bad, and thanks. I felt like I got conflicting input about this issue, and what I eventually could decipher was that if you go from a lower number of ohms to a higher number (forgive me for using kindergarten speak) ie a 4 ohm output impedance into a 16 ohm speaker load, your output transformer is what is in jeopardy, where going the opposite direction, (8 ohms to 2 ohms speaker load for example) your tube life is what is at stake. I have heard from some that going one step mismatched in either direction, as you indicated, is probably somewhat okay, but I have read some conflicting information, snd appreciate the input. Thanks for your generosity.

Collin
Marc
Posted on Saturday, September 16, 2006 - 12:39 pm:   

HD 210 Combo (150W RMS)

The internal SPEAKERS are wired in parallel but the JACKS are wired in series.

W/ no cab: Set impedence switch to 4ohm.

Also- to extend tube life, set front switch to LO POWER (providing 'only' 75 Watts rms).
Bill Traylor (bozzy369)
Username: bozzy369

Registered: 02-2008
Posted on Wednesday, October 07, 2009 - 06:37 pm:   

well,i'm bored,first i'm bored of not seeing any new posts on this incredible site.have all the questions about musicman amps been answered?have all musicman amps fallen off the face of the earth?these amps are like 25-30+ years old and there is nothing gone haywire or things you want to improve or fix?no more pics of your fantastic amp?have not found anybody famous who has used or still uses this amp?now there is that section that says "artists using musicman amps"
but i say if you play guitar or bass and maybe you play or have played in a band or you write or have written music ,you are a artist! so lets use whats left of that area for a kind od bio place .in fact i'm going to start that thread ,hope to see you there!