Cayin HA-300MK2 (2022) TOTL Transformer coupled Direct Heated Triode Tube HeadAmp (Page 91)
Mar 21, 2018 at 3:49 AM Post #91 of 6,230
Hi Andy...

Sorry, if I can ask. What sort of hi-end speaker comes in mind when designing HA-300 with 8w per channel?
It would be better to have a preamp option, so the customer can just add power amp and connect to preferred loudspeakers.
 
Mar 21, 2018 at 12:59 PM Post #92 of 6,230
Hi Andy...

Sorry, if I can ask. What sort of hi-end speaker comes in mind when designing HA-300 with 8w per channel?
It would be better to have a preamp option, so the customer can just add power amp and connect to preferred loudspeakers.

We didn't have a specific speaker model in mind when we decide HA-300. For the record, Cayin has a bookshelf speaker, LYRE T50 in our lineup and naturally this is one of the speakers we'll used to test the speaker output of HA-300.
http://en.cayin.cn/products_info?itemid=92

By the way, are you familiar with the concept of Single End Triode Class A (SETA) tube Amplifier? The standard output of 300B SETA is around 8-11 wpc. The driving capability of a 8-11W Class A output transformer coupled tube amplifier can be quite different from a 8wpc Class AB solid state amplifier, Take a quick look at the reviews of single end 300B amplifiers from speaker-based audio magazine and you'll find out they can offer a lot of fun in speaker domain:

https://www.stereophile.com/content/cayin-300b-integrated-amplifier
https://www.stereophile.com/content/thöress-300b-monoblock-power-amplifier
https://www.stereophile.com/integratedamps/398/index.html
 
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Mar 21, 2018 at 4:50 PM Post #93 of 6,230
Yes, we'll be there, booth 433 at Ear Gear Expo. Full line up including HA-300 will be there waiting for you. :beerchug:
What headphones are you going to have available at Axpona?
Depending on your availability I may bring some of mine like the Z1R you mentioned in a previous post.
 
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Mar 26, 2018 at 9:25 AM Post #94 of 6,230
Andy even though you are not coming to SoCal CanJam you should consider sending the HA300 with other partners I am sure many attendees will like the opportunities to audition your great amp.
 
Mar 26, 2018 at 11:38 AM Post #95 of 6,230
If you are referring to the ModWright, I assume the fence is for aesthetics. It probably can be removed in order to swap the tubes.

I certainly did' mean to hijack this thread with the ModWright. It starts at $8000, BTW.

Back to the Cayin HA-300. From what I've been able to determine, there are very few 300b headphone amps:
  • Woo WA5-LE: $3699
  • Woo WA5: $5899 (plus $365-$1900 for option tube upgrades)
  • Cayin HA-300: $3,999
  • ModWrite HA-300: $8000
  • ampsandsound Agatha: $3600-$4250
    • GemTune GP-01: $859 - ChiFi crap, but has VU meters!
      • Eddie Current Balancing Act: n/a new, ~$3500-$4000 used
      • I think Manley may have made a 300b headphone amp, but not anymore.
A couple of DIY options;

    • ELEKit with all upgrades and good, tubes: $2467 (DIY)
    • There are some older ELEKit amps too
Any others?
So the pricing of the Cayin is right in line with the other major 300b players. This is a small club.

If anyone has impressions comparing any of these, it would be great to hear.
The Modwright is a slightly dark sounding unit.

In appearance it has a very thick coating of shiny paint over what "looks" visually like a DIY design.
Driver tubes cannot be rolled as there are no substitutes for it.
Therefore you are stuck with the sound it has.

Personally I hate the looks as you cant see the tubes in all their glory.
I'm glad I didn't know the unit was going for $8k,
or I would have walked away sooner...

IMO too many tube amps do not look their true value.
The Cayin actually does and more.
 
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Mar 28, 2018 at 2:24 PM Post #96 of 6,230
If you are referring to the ModWright, I assume the fence is for aesthetics. It probably can be removed in order to swap the tubes.

I certainly did' mean to hijack this thread with the ModWright. It starts at $8000, BTW.

Back to the Cayin HA-300. From what I've been able to determine, there are very few 300b headphone amps:
  • Woo WA5-LE: $3699
  • Woo WA5: $5899 (plus $365-$1900 for option tube upgrades)
  • Cayin HA-300: $3,999
  • ModWrite HA-300: $8000
  • ampsandsound Agatha: $3600-$4250
    • GemTune GP-01: $859 - ChiFi crap, but has VU meters!
      • Eddie Current Balancing Act: n/a new, ~$3500-$4000 used
      • I think Manley may have made a 300b headphone amp, but not anymore.
A couple of DIY options;

    • ELEKit with all upgrades and good, tubes: $2467 (DIY)
    • There are some older ELEKit amps too
Any others?
So the pricing of the Cayin is right in line with the other major 300b players. This is a small club.

If anyone has impressions comparing any of these, it would be great to hear.


GlennOTL makes custom 300 amps & there are a few Chinese brand 300b tube head phone & amps.

The Mind Da MC-300 Ear has both 1/4th & 4 pin headphone jacks & a impedance selector. All for $2,050 plus shipping.
There are also cheaper Chinese 300B amps, that start at around $1,000, but don't have the 4 pin or output impedance selectors.

Problem is no one has ever bought or demoed any of them.
 
Mar 28, 2018 at 3:11 PM Post #97 of 6,230
The takeaway here for me is cost for 300B tubes. EML's are $662 a pop. Not to mention if you go hunting for rare tubes.
 
Mar 29, 2018 at 2:55 AM Post #98 of 6,230
GlennOTL makes custom 300 amps & there are a few Chinese brand 300b tube head phone & amps.

The Mind Da MC-300 Ear has both 1/4th & 4 pin headphone jacks & a impedance selector. All for $2,050 plus shipping.
There are also cheaper Chinese 300B amps, that start at around $1,000, but don't have the 4 pin or output impedance selectors.

Problem is no one has ever bought or demoed any of them.

1-
The problem with cheaper speaker tube amps are the increased noise floor (hiss/hum) from mismatch of connecting lower impedance Headphones,
and volume setting too sensitive,
and the need for a headphone box/adapter to properly come out of the amp's speaker outputs...

Not to mention the issue of Soundstage which may not be fully present,
as most speaker amps tend to be a bit forward and lacking of holography.

2-
The The Mind Da MC-300 has only 900mw output to headphones.
The 7w is for speaker out.
So Engineering level of modification would have to be done to change that,
And level of sound quality is unknown.

3-
Both the GlennOTL custom 300 amp,
And the EC Aficionado (with 300b option) are excellent amp choices,
But both are $4k amps.

I still see the Cayin on top with most power, most options and best finish quality.
 
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Mar 30, 2018 at 1:03 PM Post #99 of 6,230
I actually own a Ming Da MC-300. If someone has questions, feel free to ask.

In terms of speakers - 8 watts is actually plenty for many speakers, especially in near field applications. No, you probably won't fill a stadium, but my 7 wpc output drives my LS50 plenty loud for my near-field home office application. I don't even turn the dial up much beyond a quarter of the way to full volume.

Speaker sensitivities are measured per watt, so for example, the LS50 gets to 85DB off a single watt - not bad if they are sitting close to you. 85 is typically the level at which you start to get hearing loss, so in reality my music spiking to 85 DB over dynamic range is perfectly fine, which means I'm using much much less than 1 watt for normal listening.

Getting one of these low power amplifiers to power speakers can really open your eyes to how little power you really need (in certain applications, that is).
 
Mar 31, 2018 at 5:48 AM Post #100 of 6,230
I actually own a Ming Da MC-300. If someone has questions, feel free to ask.

In terms of speakers - 8 watts is actually plenty for many speakers, especially in near field applications. No, you probably won't fill a stadium, but my 7 wpc output drives my LS50 plenty loud for my near-field home office application. I don't even turn the dial up much beyond a quarter of the way to full volume.

Speaker sensitivities are measured per watt, so for example, the LS50 gets to 85DB off a single watt - not bad if they are sitting close to you. 85 is typically the level at which you start to get hearing loss, so in reality my music spiking to 85 DB over dynamic range is perfectly fine, which means I'm using much much less than 1 watt for normal listening.

Getting one of these low power amplifiers to power speakers can really open your eyes to how little power you really need (in certain applications, that is).
Is your Ming Da MC-300 the headphone model (MC-300 EAR)? Do you think it has enough power to drive the HE6? I would love to hear what you think of it. You can PM me so that we do not derail this thread.
 
Apr 1, 2018 at 1:10 AM Post #101 of 6,230
Andy even though you are not coming to SoCal CanJam you should consider sending the HA300 with other partners I am sure many attendees will like the opportunities to audition your great amp.
SoCal should not be avoided as huge market there.
 
Apr 1, 2018 at 1:07 PM Post #102 of 6,230
What headphones are you going to have available at Axpona?
Depending on your availability I may bring some of mine like the Z1R you mentioned in a previous post.

Sorry for the delay, I stay back in Singapore for a few days and just get back on track today.

For planar, we'll have HiFiman Susvara, Abyss AB-1266 Phi, Kennerton Thror and possibly Meze Empryean. For dynamic, we'll have Focal Utopia and HD800 (not the S).

Please bring your Z1R as we didn't have a lot of choice on dynamics headphones. :beerchug:
 
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Apr 1, 2018 at 1:20 PM Post #103 of 6,230
Andy even though you are not coming to SoCal CanJam you should consider sending the HA300 with other partners I am sure many attendees will like the opportunities to audition your great amp.

SoCal should not be avoided as huge market there.

Sorry, its too late to arrange anything by now. I did ask around at CanJam Singapore but the HA-300 is simply too big and occupied half a table immediately, so it is difficult to find a partner with space to spare at last minute.:pray::pray:
 
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