Following up
@charles1dad comment, I too think a comparison
between Don Sachs and Linear Tube Audio (LTA) ZOTL preamplifiers would be very interesting
indeed. As a side note, the Tube Research Lab (TRL) Dude is another 6SN7-based
design
After exchanging a
few emails with Don, I got the sense that he is not only quite knowledgeable
and generous with his ideas, but he’s also a very modest guy … a real professional. At the same time, I had hoped he might weigh into the
discussion regarding any similarities/differences between his approach and ZOTL
from a technical perspective. In the end, I suppose all we really care about is
“how does it sound?”
Having just read Teajay’s (Terry London) Home Theater review of the LTA MZ2-S line stage, all I
could say is “wow”. What I found particularly compelling was his comparison to
the Van Alstine AVA FET Valve CF, along with a host of other well-known and
much more expensive preamps. On the
other side we have @whitestix experience with Don Sachs’ SP-14 outperforming
an equally impressive line-up. Wouldn’t it be great if someone (Teajay?) could
get a hold of both units for a head-to-head shootout and review?
In terms of features – and just looking at the MZ2-S - Teajay
goes on to list a few High Points and Low Points in his review. Based on what I
would consider for my own purposes, I’d go a step further in comparing the
SP-14 versus the MZ2-S: 1) The MZ2-S is
multipurpose … functioning as a preamp, an integrated, or a headphone amp. So one
could add a set of high-efficiency speakers and be good to go; 2) The SP-14
allows up to 6 inputs, including the ability to swap out a couple for HT
pass-through and balanced/XLR. In this case you would have 4 RCA inputs +XLR input
+HT. The MZ2-S has a limit of 3 inputs;
all single-ended with no HT option. 3) The SP-14 has 2 sets of pre-outs to
easily add a subwoofer. The MZ2-S has 1 set; and 4) both have remote control
options, neither allow for built-in phono stage (like the AVA FET). All things considered, I’d opt for
the Don Sachs SP-14.
These are just a few thoughts I wanted share on the subject.
Thanks for reading. I hope the folks who I mentioned don’t mind. It’s just that
I always try to defer to those with firsthand, or should I say “first-ear”
experience. That said, even though I have not personally heard either of these
preamps, I have a very strong feeling I’d be quite happy with either one.
Happy Listening!
