New tube amp: the Cayin HA-1A MK2
Jul 3, 2019 at 7:42 AM Post #377 of 970
Hey Mate, how do you like the synergy between ZMF and Cayin HA-1A MKII?

Hi, I have set up the tube roll in my HA-1A specifically to match my HE1000SE, not the Verite. The Cayin amp is quite transparent in showing the character of the tubes , so it is probably a nice match for Verite with 12au7 telefunkens for the air and soundstage, and a warm power tube like bugle boys or maybe try run mullard 12au7 drivers with telefunken el84 power tubes for speed. I listen to the Verite on my Cavali LP running 12au7 mullards & Freya+ preamp with telefunken 12au7s + Mullard ECC33s
 
Jul 7, 2019 at 7:34 AM Post #379 of 970
Anybody know ha1a mkii power consumption when idle condition, when we do not play a song, volume set at zero.
All I know that the power consumption is 65 Watt, is it when cayin volume set at max or at any volume?

CC: @Andykong
I think the power consumption is constant regardless of the volume setting or input signal. (If there's any change, it's very slight.)
 
Jul 11, 2019 at 11:29 AM Post #380 of 970
Anybody know ha1a mkii power consumption when idle condition, when we do not play a song, volume set at zero.
All I know that the power consumption is 65 Watt, is it when cayin volume set at max or at any volume?

Thanks

CC: @Andykong

Honestly, no idea. Sorry.
We didn't test the power consumption of tube amplifier when unloaded, and technically tube amplifier will never enter idle condition after power up.
 
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Jul 21, 2019 at 8:26 PM Post #381 of 970
I wonder how this would do with Planar IEMs since it seems to make excellent synergy with the aforementioned type of driver. Plus, one of its output options mentions a minimal output impedance of 8 ohms, coupled with the fact this seems to be a hybrid it leads me to wonder whether these could drive... say, iSines.
 
Aug 2, 2019 at 10:00 PM Post #383 of 970
Has anybody tried using this little beast as a pre-amp?
 
Aug 3, 2019 at 5:27 AM Post #386 of 970
Pre amp for the LS50W ?
 
Aug 5, 2019 at 7:39 AM Post #387 of 970
I wonder how this would do with Planar IEMs since it seems to make excellent synergy with the aforementioned type of driver. Plus, one of its output options mentions a minimal output impedance of 8 ohms, coupled with the fact this seems to be a hybrid it leads me to wonder whether these could drive... say, iSines.

When we developed the HA-1Amk2, we didn't have a lot of planar headphones available, we used Mrspeakers Alpha Dog, HiFiman HE6 and Audeze LCD3 in betweens, so it should work with iSines alright.
 
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Aug 5, 2019 at 7:40 AM Post #388 of 970
Pre amp for the LS50W ?

It should work, but we didn't try this pair specification so we can't comment on the tonal balance and choice of tube for this combination.
 
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Aug 5, 2019 at 7:43 AM Post #389 of 970
So how does this MKII compare to the MKI? I have a MKI right now and love it. Any advantages to upgrading to MKII?

The Mk2 was a complete redesign. We gave up the speaker output and optimized the circuit for headphone application solely. We have developed new output transformer and adding the tube regulator, and we have tested the amplifier with Planar headphones during the development stage. So the changes are quite significant.
 
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