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In Reply to: RE: What are your thoughts on the Little Dot amps? posted by golgi on September 06, 2011 at 20:34:43
What tubes do you recommend with the Dot 3. I have the HD 650 headphones using the standard tubes that came with the Dot MKIII. And where can said tubes be purchased? Thank you.
Follow Ups:
I've not tried as many different tubes as others. The ones I've tried are Mullard EF92, Tung Sol 5654, GE EF95, Amperex EF92 (actually manufactured by Mullard), and Amperex Bugle Boy EF91 (made in Holland). Out of these, the Amperex Bugle Boy EF91 are by far my favorite tubes. These are not easy to find and it took many months of searching online to find them. I was lucky to get them on ebay for around $12 for the pair.Even though the Amperex sound great, I'm also curious to try the Voskhod 6zh1p-ev tubes. These have been discussed a lot on a different headphone forum with several members saying they are a great value and one of their favorites.
At any rate, the MKIII (even stock tubes) with Sennheiser 580/600/650's is a good combination that is relatively reasonable in cost.
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Main system- Rotel RCD950, Rotel RC1070, Rotel RB981, Magnepan 10QR, Martin Logan Dynamo sub
Headphone system- Little Dot MKIII, Sennhesier HD 580,
Cambridge Audio 640P phono, Technics SL1210 MK2, Denon DL160
Edits: 09/07/11 09/07/11 09/10/11
I know nothing about tubes. Do you have to do anything to the amp when switching tubes? Or do you just plug them in?
Tube swapping is easy. they have a manual and provide jumpers for some tubes that you can just pop in to the inside part of the amp but there are so many tubes variants that you can just pull out the tube and reinsert a new tube without touching anything. The Mullard CV4010 are a nice tube for Little Dot amps and can be purchased cheap.. There are some great Little Dot threads on Headfi.org that you should read and ask some questions there but it very highly recommended.
There is a minor tweak you must do when switching tubes. Depending on the year your MKIII was made, you will either have jumpers or dip switches that must be changed according to the tube you want to use. It's really quick and easy to do and doesn't require opening the amp. You can access these from the cut outs on the bottom of the amp.Check this page for the guide- http://www.littledot.net/forum/viewtopic.php?f=9&t=815&sid=b7982c59f100efcf68cb8192aa1fb86b
.
Main system- Rotel RCD950, Rotel RC1070, Rotel RB981, Magnepan 10QR, Martin Logan Dynamo sub
Headphone system- Little Dot MKIII, Sennhesier HD 580,
Cambridge Audio 640P phono, Technics SL1210 MK2, Denon DL160
Edits: 09/08/11
I have the I+ and it requires opening the chassis. The guide only mentions a couple other tubes that are compatable. Would different tubes make that noticable of a difference?
I don't have any experience with the I+. But with the MKIII the differences between tubes is very noticeable.
.
Main system- Rotel RCD950, Rotel RC1070, Rotel RB981, Magnepan 10QR, Martin Logan Dynamo sub
Headphone system- Little Dot MKIII, Sennhesier HD 580,
Cambridge Audio 640P phono, Technics SL1210 MK2, Denon DL160
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