The 'NEW' YAQIN MS-20L Integrated Vacuum Tube Amp Thread - Page 25 - AVS Forum
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post #721 of 838 Old 01-11-2013, 09:15 AM
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Really considering getting this amp for myself. How would it do with say my Monitor Audio RX6 speakers?
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post #722 of 838 Old 01-11-2013, 03:31 PM
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Well, it arrived yesterday and here it is... Bi-wired to a pair of KEF Q900's, this sounds better than three other tube amps I'd tried (one a Yaqin B-348 w/KT88s). The 6CA7 set that came stock with this piece are really very good sounding.... Only about 8 hours on the amp so far.
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post #723 of 838 Old 01-11-2013, 03:35 PM
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Looks like the pic didn't add the first time around....

Yaqin MC-30L 1264k .jpg file
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post #724 of 838 Old 01-12-2013, 06:07 AM
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'Grats on the new amp, looks good! I'm running Yaqin blue glass as well and really diggin the sound of them.

The amp would drive your speakers just fine, Imyamen.
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post #725 of 838 Old 01-13-2013, 08:05 PM
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post #726 of 838 Old 01-24-2013, 04:26 PM
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Hello there. I am new to the forum. Just stumbled on to it as I am seeking info on the Yaqin ms-20l. Looks great, seems like a deal. What is everyone running for speakers. Are most of the people using very efficient book shelf models. i have a set of hungry von schweikerts and I am wondering if this beauty will fit the bill. I listen to a lot of rock and I often like it loud. Let me know what your yaqin is powering or offer suggestions. Thanks for your time.
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post #727 of 838 Old 01-25-2013, 08:48 AM
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Just placed an order for an update to my system smile.gif

I've been running the Yaqin MC-13S for a year or so now, connected to a pair of Kef iQ7s - I've been very happy with the performance and still am smile.gif

Decided I wanted a bit of an upgrade though - so just ordered their valve based DAC - DAC-K9, they're King 2A3 MS-2A3 and a pair of Kef Q900s... really looking forward to delivery biggrin.gif

Also got a power conditioner and some improved cabling to go with it... it's gonna be goooooood smile.gif

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post #728 of 838 Old 01-29-2013, 04:13 PM
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Hi all, I just joined the forum as I'm seriously thinking of getting a MS-20L as it sounds a cracking amp for the money and I already have a MS-12B preamp which I love, but as I listen to a lot of music on my headphones I was just wondering what the quality of the headphone output is like on thMS-20L? would be especially interested on how it sounds with sennheiser HD600' or the 650's. or any other higher ohm cans.

Also does anyone know if the headphone jack runs straight from the power amp section using resistors or does it have a cheaper separate amp section?

Any advise on this would be most appreciated as I haven't been able to find a lot of information so far and its the only thing holding me back as I do love using my headphones.

Thanks for any help.
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post #729 of 838 Old 01-29-2013, 04:41 PM
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Headphone jack is wired to the output transformers through two 680 ohm resistors. Yaqin recommends min 32 ohm headphones, I haven't tried it with higher impedance headphones but I think it'd be fine. If I can get hold of a pair, i'll give it a go.
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post #730 of 838 Old 01-29-2013, 08:05 PM
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Quote:
Originally Posted by lbbuk View Post

Hi all, I just joined the forum as I'm seriously thinking of getting a MS-20L as it sounds a cracking amp for the money and I already have a MS-12B preamp which I love, but as I listen to a lot of music on my headphones I was just wondering what the quality of the headphone output is like on thMS-20L? would be especially interested on how it sounds with sennheiser HD600' or the 650's. or any other higher ohm cans.

Also does anyone know if the headphone jack runs straight from the power amp section using resistors or does it have a cheaper separate amp section?

Any advise on this would be most appreciated as I haven't been able to find a lot of information so far and its the only thing holding me back as I do love using my headphones.

Thanks for any help.

I do not recommend using it with headphones. Hum level is too high in it. With speakers it is not that obvious, but with cans it is going to be annoying.
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post #731 of 838 Old 01-30-2013, 11:23 AM
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Thanks for the advice folks, still not sure whether to get one or not!
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post #732 of 838 Old 01-30-2013, 11:24 AM
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Hum level is too high in it. With speakers it is not that obvious, but with cans it is going to be annoying

Never noticed that with mine. Have used with 32 and 600 ohm headphones.
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post #733 of 838 Old 01-30-2013, 12:06 PM
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Tube amps are inherently noisier than SS...depends what your tolerance is.
My 20L is dead quiet with most power tubes. Yaqin advertises >88dB snr for the amp.
I use $200 Sony headphones and it's fine for me.
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post #734 of 838 Old 01-30-2013, 05:22 PM
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Quote:
depends what your tolerance is
I agree!
Have tried this with with a variety of cans... latest is the Beyerdynamic T90.
The Yaqin sounds pretty good but not quite the same as my Wa6 amp.
Still pretty decent. This amp actually is very nice all around.
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post #735 of 838 Old 01-30-2013, 07:43 PM
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Quote:
Originally Posted by rntlee View Post

Tube amps are inherently noisier than SS...depends what your tolerance is.
My 20L is dead quiet with most power tubes. Yaqin advertises >88dB snr for the amp.
I use $200 Sony headphones and it's fine for me.

88dB is only reachable with A curve filter. Real hum level is 10dB higher. This is a lot for headphones. I can easily hear hum at real 90dB level. That is why dedicated headphone amplifiers have extremely low noise level - usually well below 100dB.
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post #736 of 838 Old 01-31-2013, 08:13 AM
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Do you have a 20L, ap1? I don't know about everyone else but as I said before, mine is dead silent with quality tubes installed. I mean, I can hear no hum with my ear against the speaker.
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post #737 of 838 Old 02-06-2013, 02:25 PM
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Hi all,

After reading all the answers to my question about the headphone output I decided to get the amp and give it a try and I'm glad I did, what a fantastic amp for the money! it sounds great with my vintage speakers. The headphone output seems to be very good with my Sennheiser HD650's, easily beats a Darkvoice 332 headphone amp and it is virtually silent, there's actually no hiss even with my ear up to the speakers and barely noticeable with the cans, which is impressive as my Yaqin MS-12B pre & Arcam 8p power amp combo had a slight hiss if you listened closely.

I bought the amp used with a set of 8 Mullard cv4010 driver tubes already fitted, are the Mullards a good choice?

After reading through the thread a lot of people seem to favour the Genalex Gold Lion KT77's I what wondering what are the main differences sound wise are between the stock EL34's and the Gold Lion KT-77's? is it a noticeable upgrade?

Anyway a new and very happy MS-20L owner here smile.gif

Cheers
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post #738 of 838 Old 02-07-2013, 04:07 AM
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Congrats on your new amp, glad you're enjoying it!
The Mullards are an excellent tube, very high quality. Can't comment on the KT77's as i don't own any, but I have found that Russian power tubes are quieter than Chinese brands. I have a very slight hum in my amp with the stock tubes as well, but my Tung Sol el34's make the amp absolutely silent.
Have fun!
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post #739 of 838 Old 02-08-2013, 03:37 PM
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My 20L never has any hum at the speakers, there is a very slight hum from the power transformer on my one.
I have tried the JJ KT77 and thought they were a great tube, not brave enough to try the GL's as I have heard
many stories of them going thermo nuclear. Apparently they do sound exceptional. Of the many current production
power tubes I have tried my current personal favourite is the SED =C='s.

I have a pair of Phiaton MS400 headphones and have found the headphone jack on the 20L to be nothing short
of brilliant. No noise, hum, hiss or anything. Just great sound.

I also have Mullard input tubes. EF95, CV4010 and M8100.. I have found them all to be great. The M8100 have
been in there for 4 or so months, they sound the same as the CV4010 to me (I think they are the same tube, relabelled).

Happy listening!
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post #740 of 838 Old 02-11-2013, 01:32 PM
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Has anyone compared the MS-20L to the MS-300C?

http://www.ebay.com/itm/YAQIN-MS-300C-Class-A-Stereo-Integrated-Tube-Amplifier-/130842896865?pt=US_Home_Audio_Amplifiers_Preamps&hash=item1e76d829e1

The MS-300C is $300 more, less rated watts but looks built like a beast. I am a newb to analog. How do the 300B tubes affect/improve the sound?

I don't mind spending the extra $300 if it is worth it.

Any feedback?
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post #741 of 838 Old 02-11-2013, 04:08 PM
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Quote:
Originally Posted by drewTT View Post

Has anyone compared the MS-20L to the MS-300C?

http://www.ebay.com/itm/YAQIN-MS-300C-Class-A-Stereo-Integrated-Tube-Amplifier-/130842896865?pt=US_Home_Audio_Amplifiers_Preamps&hash=item1e76d829e1

The MS-300C is $300 more, less rated watts but looks built like a beast. I am a newb to analog. How do the 300B tubes affect/improve the sound?

I don't mind spending the extra $300 if it is worth it.

Any feedback?

They are only 4W/ch. You need really highly sensitive speakers for that kind of power. I think Yaqin makes 300B push-pull monoblocks too, which could be an option if you want that tube. But price is significantly higher.
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post #742 of 838 Old 02-13-2013, 06:07 AM
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Quote:
Originally Posted by ktran11 View Post

Thanks for the reply! Can someone tell me how many watts speakers can this amp handle? Any recommended speakers? What speakers are you guys using? smile.gif

Quote:
Originally Posted by ap1 View Post

Small to midsize relatively sensitive speakers. Example is B&W 685/CM5.

Quote:
Originally Posted by rntlee View Post

I'm using Paradigm monitor 7's and a 10" sub to fill in below 50 Hz. They're rated efficiency is 91db, and this amp will put you out of my living room (30'x15') with these speakers...I think anything 89db and up efficiency-wise would be fine.

Gents, new to this thread. Thank you, to the pioneers here. I am looking for a phono stage and an amp to be used in a 14x12 carpeted office. Turntable and iPod play. I have b&w 686 and they are NOT efficient as someone mentioned above. They sound wonderful but they are hungry. Sensitivity is 84!

I have a vpi traveler with a 2m blue. I tend to listen at loud levels. Indie rock and jazz mostly. Some female artists.

Which equipment from this manufacturer should I be considering. I don't know where to start. I see that the Canadian seller on eBay has excellent feedback. I am in the states.

Thanks all

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post #743 of 838 Old 02-13-2013, 06:32 AM
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Quote:
Originally Posted by RyanA3 View Post

Quote:
Originally Posted by ktran11 View Post

Thanks for the reply! Can someone tell me how many watts speakers can this amp handle? Any recommended speakers? What speakers are you guys using? smile.gif

Quote:
Originally Posted by ap1 View Post

Small to midsize relatively sensitive speakers. Example is B&W 685/CM5.

Quote:
Originally Posted by rntlee View Post

I'm using Paradigm monitor 7's and a 10" sub to fill in below 50 Hz. They're rated efficiency is 91db, and this amp will put you out of my living room (30'x15') with these speakers...I think anything 89db and up efficiency-wise would be fine.

Gents, new to this thread. Thank you, to the pioneers here. I am looking for a phono stage and an amp to be used in a 14x12 carpeted office. Turntable and iPod play. I have b&w 686 and they are NOT efficient as someone mentioned above. They sound wonderful but they are hungry. Sensitivity is 84!

I have a vpi traveler with a 2m blue. I tend to listen at loud levels. Indie rock and jazz mostly. Some female artists.

Which equipment from this manufacturer should I be considering. I don't know where to start. I see that the Canadian seller on eBay has excellent feedback. I am in the states.

Thanks all


If you want it loud, forget tubes. Find nice solid state integrated amp with 100W per channel. But I am afraid 686 won't be able to play loud too. They are too small. 685 will be much better.
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post #744 of 838 Old 02-13-2013, 08:48 AM
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Scratchy pot returned with a vengance...swapped it out and all's bliss again. smile.gif
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post #745 of 838 Old 02-13-2013, 09:03 AM
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Quote:
Originally Posted by ap1 View Post

If you want it loud, forget tubes. Find nice solid state integrated amp with 100W per channel. But I am afraid 686 won't be able to play loud too. They are too small. 685 will be much better.

With that said, and thx for your insight...... If I want to step my foot into the tube world and test the waters myself... what would you recommend, considering I like to play loud at times. Thanks mate.

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post #746 of 838 Old 02-13-2013, 09:24 AM
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Quote:
Originally Posted by RyanA3 View Post

With that said, and thx for your insight...... If I want to step my foot into the tube world and test the waters myself... what would you recommend, considering I like to play loud at times. Thanks mate.

Tubes with some good old high efficiency speakers. If you're on a small budget, old Klipsch Heresy's are great. If you have a few dollars to spare, I'm loving Zu Audio a lot (all models over 100db efficiency). 3 watts is enough to get uncomfortably loud.

I'm currently using 1st generation 1970 JBL L100's on my MC-100B and it'll get up there pretty well.

TV's ain't theaters buddy.

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post #747 of 838 Old 02-13-2013, 09:31 AM
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Tubes with some good old high efficiency speakers. If you're on a small budget, old Klipsch Heresy's are great. If you have a few dollars to spare, I'm loving Zu Audio a lot. 3 watts is enough to get uncomfortably loud.

I'm currently using 1st generation 1970 JBL L100's on my MC-100B and it'll get up there pretty well.

I have B&W 686 on order, they are delivering to me next week. Budget is not the issue. It's the size of the speakers. They are for an office. I like the size and sound of the 686.

Are you saying I should cancel the order b/c they are too thirsty for power - for tubes? They are 400-500 a pair. I'm willing to spend a bit more, I want to make music! Thx!

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post #748 of 838 Old 02-13-2013, 09:33 AM
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http://www.zuaudio.com/products-loudspeaker.php#omen-bookshelf-loudspeaker.php
is this what you suggested?
$1200 a pair
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post #749 of 838 Old 02-13-2013, 09:40 AM
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Yeah, what Ryan suggested is perfect and sounds phenomenal. I heard them on a 7 watt/channel SET system and was very impressed with the sound *attach random audiophile adjectives here*

TV's ain't theaters buddy.

My junk collection.

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post #750 of 838 Old 02-13-2013, 10:04 AM
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Yeah, what Ryan suggested is perfect and sounds phenomenal. I heard them on a 7 watt/channel SET system and was very impressed with the sound *attach random audiophile adjectives here*

Greg recommended them. I was only confirming. cheers

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