Rated Power Output: 60 watts x 2
MFR: 20Hz to 30kHz
THD: < 2.0% at Rated Power
S/N ratio: > 90 dB
Inputs: CD, Tape, Aux, Tuner
Input Sensitivity: 380 mV
Input Impedance: 250k Ohms
Output Impedance: 4 Ohms, 8 Ohms
Outputs: Five-Way Binding Posts; 4 Ohm and
8 Ohm Taps
Dimensions: 7.25" H x 17" x 15" D
Weight: 60 Pounds
Finish Options: High Gloss Automotive Black
MSRP: $3,495 USA
Talk about synchronicity. Last
spring, right after my Jadis DA-7 Luxe amplifier had been shipped to
Southern California for repairs, I received an e-mail from Genesis touting a
glowing review of their M60 monoblocks.
Realizing that the M60s offered
a potential solution to my month sans Jadis, I requested a pair for review.
Understanding my situation, Carolyn Koh of Genesis responded by shipping out the
M60s with extraordinary speed.
I greatly enjoyed listening to the Genesis monoblocks, which I paired with
the Theta Gen. VIII DAC/preamp. However, while their sound was considerably
fuller and richer than the Monarchy monoblocks I have reviewed in these
pages, I could not get the bass out of them that I desired.
This left me in the
uncomfortable situation of giving a mixed review to a product from a company
that most graciously came to my aid in the nick of time.
Happily, I learned that the problems were not with the amps, but with system
Lessons in Load and Impedance
In early December, 2006, while speaking with Genesis head Gary Koh about the
genesis of the monoblocks he helped perfect, I let slip that I had some
reservations about their bass extension. Once I explained that I was pairing
them with the Talon Khorus X Mk. III, Gary suggested that their isobarically
loaded woofers will present a challenge to lower-powered tube amps. Thus, I
could not fairly evaluate his amps.
Gary and I both acknowledged that my particular Talons were not an
appropriate match for the M60s. (I subsequently discovered that while the
just-released VTL 450W auto-bias monoblocks can easily drive the Talons and
absolutely control their bass, my 100W Jadis cannot. I am currently on the
lookout for new speakers, and am planning to sell the most upgraded and
best-functioning pair of Talon Khorus X Mk. IIIs on the planet). My
reference system is shown below.
When I told Gary that I had
plugged his amps into my upgraded ExactPower EP15A power regenerator, he
explained that this was yet another mismatch. It turns out that my upgraded
ExactPower's extremely low output impedance - less than 0.5 ohms - is way
too low to allow Genesis amps to function optimally. Gary explained that he
recommends his amps be plugged directly into the wall, and that he designed
the power supplies to perform at their best when operated in that manner.
Gary also assured me that the ExactPower would work well with my other
components (transport, DAC, VCR, tuner).
Rather than throwing in the towel, Gary and I looked at the smaller upstairs
system. While the system does not have a preamplifier, it has the excellent
Von Schweikert VR-4jr. speakers and a host of fine cabling. We thus decided
to pair his virtually identical-sounding Genesis I60 integrated amp, which
does not need a separate preamp, with the VR-4jr. speakers in our upstairs
system. This obviated the need for a stand-alone preamp, which I do not have
on hand at this time.
New amp - New Environment
The upstairs system, located in my spouse's office, is very much "real
world." There is no acoustic room treatment to speak of, no dedicated
circuit, not even an audiophile grade outlet in the wall. The so-called rack
is a $69 particle-board special from a defunct hi-fi store, the amp and
ExactPower stand a little $79 oak table that I also bought on sale. Only
Ganymede ball-bearing supports offered vibration control.
Note as well that the set-up includes several audiophile no-nos. There's a
ridiculously antiquated, monaural TV sitting right between the speakers.
(Gaze upon it in the accompanying photo if you dare). Adding insult to
injury, it's in the same plane as the speakers and higher than their
tweeters, further compromising the soundstage. Hey, we don't even have
Given that the hideously
metallic-sounding, first generation Sony CD player in the upstairs system is
an audiophile embarrassment, I prevailed upon Herb Cygan, a long-time member
of BAAS (the Bay Area Audiophile Society) to loan me Alex Peychev's (http://www.aplhifi.com)
excellent, heavily modified Philips 1000 Universal Player.
For the Genesis I60 review,
speaker cables and interconnects were a combination of Nordost Tyr (review
forthcoming) and Nordost Valhalla. Power cables were Nordost Valhalla,
unquestionably the finest power cables I've ever auditioned in my system,
which I borrowed from the reference system. I used the modified ExactPower
EP15A to regenerate power to the Philips 1000, and plugged the Genesis I60
directly into the wall. Since I'm accustomed to clarity afforded by Shakti
Stones, a few of those were thrown into the mix, as was, on occasion, the
Marigo Signature 3-D Mat v. 2.
Von Schweikert counsels to place his VR-4jr. speakers far apart. In our
situation, that's impossible. I can't move the left speaker farther to the
left without totally blocking part of it by plants and desk, and can't move
the right speaker farther to the right without blocking the closet door. I
can't even move the speakers more than a few feet forward from the wall
without putting them on the carpet, which would make the room non-functional
and our dog very upset. Hence, save for the expensive Nordost cabling, which
I purposely used to provide sound similar to that produced by my reference
system, the setup approximates that of a mid-level priced audiophile system
situated in an average, untreated room ruled over by a spouse who cares
about space and neatness.
Click Here to Go to Part II.
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