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Old 17th January 2013, 08:18 PM   #21
cotdt is offline cotdt  United States
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Even if the amp can't get super loud in a large room with your speakers, it will be very listenable, and you can get another 1000W amp for party use.
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Old 17th January 2013, 08:25 PM   #22
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Mine is called a MingYue Mini from eBay. It comes with 6N1 driver tubes and 6P14P output tubes. I replaced with Amperex 6DJ8 and GE EL84s, but the stock 6N1s are actually very good.

Receivers are often overrated for power. "50W" is at best 20W rms into 8 ohms before onset of clipping. A push-pull EL84 will give just slightly less output in the real world.
Ahaha. I found it. Music Angel MINI L4 EL84 6p14 Vacuum Tube Hi-end Tube Integrated Amplifier PUS | eBay

I know about the wattage overrating typical, however I do think my Yamaha R-S300 (a far better-sounding amp than any of you might imagine it is) can push considerably more than 20w consistently before clipping. My Lepai, however, is only good for about 5-6 watts clean into 8 ohms and I had no trouble getting it to clip while driving my dual-EL70 towers (and it happened long before I was satisfied with the volume).

As I said, I don't need 1000w for parties. My Yamaha SS is all the wattage I need. I just want to try tubes without making too much of a power sacrifice. 15wpc sounds good to me.

Last edited by cogitech; 17th January 2013 at 08:27 PM.
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Old 17th January 2013, 08:27 PM   #23
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A $200 EL84 PP is something I would consider.
There's a good chance you will have problems with a cheap amp from China. I see lots of posts from people having issues with these cheap amps, and without the knowledge to fix them.

jeff
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Old 17th January 2013, 08:29 PM   #24
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"Hello rock, meet hard place."
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Old 17th January 2013, 08:31 PM   #25
cotdt is offline cotdt  United States
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Yep! That's the one. It's true that they keep modifying the circuit, but if it's the same circuit as the one in mine, then it will sound very good with simple mods.
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Old 17th January 2013, 08:33 PM   #26
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Yep! That's the one. It's true that they keep modifying the circuit, but if it's the same circuit as the one in mine, then it will sound very good with simple mods.
Tube rolling isn't new to me, but what's all involved in swapping the coupling caps? Is it dangerous?
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Old 17th January 2013, 08:38 PM   #27
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"Hello rock, meet hard place."
The odds are not in your favour. If you want something to play with, look around for a Dynaco ST-35.

jeff
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Old 17th January 2013, 09:19 PM   #28
cotdt is offline cotdt  United States
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Tube rolling isn't new to me, but what's all involved in swapping the coupling caps? Is it dangerous?
It's those four blue rectangular things. I replaced mine with Mundorf Supremes.
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Old 17th January 2013, 09:21 PM   #29
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The odds are not in your favour. If you want something to play with, look around for a Dynaco ST-35.

jeff
What about a $400 amp from China, via Alberta?

Chuguang (Grant Fidelity) I-25.

2 x 12AX7B, 2 x 12AU7, 4 x EL34B, 25 wpc, free shipping...

Last edited by cogitech; 17th January 2013 at 09:27 PM.
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Old 17th January 2013, 09:24 PM   #30
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It's those four blue rectangular things. I replaced mine with Mundorf Supremes.
Looks simple enough. (Famous last words)
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