[Magic77]

I was looking at these amps at the Meier Audio website and am trying to figure out what the main differences are. Of course the HA1 has the 2 mini headphone jacks with 0 and 120 Ohms; and the MkII has 1 1/4-inch headphone jack.

But; the MkII looks like it has more components in there, more capacitors etc...., but both amps do use the same Op-Amps.

So; Can anyone comment on the main differences? Thanks.

 

[Jan Meier]

Dear Magic77,

The major difference is, that the output of the HA-1 MkII has BUF634 output buffers. It thus has more driving capacity.

Other improvements are a second-order input filter (better RFI-suppression) and better capacitors in the signal path (polypropylene instead of polyester).

The HA-1 has four crossfeed levels (stereo,low,medium,high) whereas the HA-1 MkII has three levels only (stereo,low,medium).

Although the costs in parts of both amps the HA-1 MkII sounds better. The HA-1 is no longer produced and I'm just selling old stock. Therefore the lower price.

Cheers,

Jan

 

[Magic77]

Jan,

Thanks so much for your reply. Your answers were extremely helpful.