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Just like the CD128 before it, the SE-30A arrived securely
clam-shelled, all tubes installed. In the three stapled sheets going for
the owner's manual, a stern warning alerts one that tube bias adjustments
may only be performed by a qualified technician. For everyone else, the
proper bias voltage is 0.5V. My EL34s all sat at 0.55V +/- 0.01V upon
delivery, suggesting a slightly different wall voltage from the
factory but rock-solid biasing.
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Unlike the
CD128, the chassis is polished stainless with its peculiar penchant for
absorbing skin oils and discoloring. How to keep that as pristine as the
gloss-lacquered transformer casings, the finely pebbled corner turrets and
smoothly grained fascia is one of those questions. I'm told that future
models will switch to aluminum (wasn't this a brand new model
already?) The pale champagne footers are bolted into the corner stanchions
and can easily be adjusted for perfect leveling.
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| Like the recently reviewed Melody Hifi Ltd. I2A3 18-watter, the
Raysonic integrated is preternaturally quiet on my 101dB Zus. Are we
witnessing the dawn of a new epoch of affordable Chinese-built valve kit
that completely transcends hiss and hum? Two out of two in two months is
certainly suggestive and marvellous news. |
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The
innards are as tidy as its digital sibling's while not as busy. There's
less stuff here.
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The Metropolis tube chimneys are permanently installed and quickly
get scalding hot to the touch to perform a secondary -- or rather, primary
-- function as fashionably sculpted heat sinks. They also make pulling the
EL34s out somewhat of a challenge. Being a Class A design, this amp gets
hot all over - chassis, potted transformer casings, the very air around
it. This is not an amp you'll want to leave on while it's not playing.
Unless it's winter of course and you don't mind thermally stressing the
components more than necessary.
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While finished very nicely, the SE-30A isn't quite of the same
outrageous caliber in that regard as its CD-128 stable
mate. |
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The
SE-30A lacks remote control. Looking over its internal parts, they don't
quite stretch the envelope as Melody's I2A3 did with its Jensen PIO caps
and custom-made resistor-ladder attenuator. In the end, it's of course how
well any chosen parts perform in the circuit. Because I had the
Melody HiFi I2A3 and Eastern Electric M520 in house -- all similar in
power, all below $3,000, the M520 the only one with remote -- I set up a
system to compare all three. For source duties, the Raysonic CD128 spun
the digits to make for a realistically priced mate. For load behavior into
standard 88dB speakers, Anthony Gallo's Reference 3.1s got leashed up.
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When the amp crackled and popped in only one channel after a few
hours of play, I knew I had a bad tube. But which one? Swapping
out left and right banks of EL34s confirmed that getting them out of the
tube chimneys was tricky - manageable but unnecessarily
inconvenient. Banana or twist lock removal would be nicer to fully expose
the tubes first rather than having to peel them out. As it is, one has to
use finger tips to gain purchase on the small ledge between thinner tube
base and thicker glass shaft and push up hard. Wiggling is
impossible. In the end, one of the Electro-Harmonix 12AU7/ECC82s was the
kaputnik though visual inspection afterwards netted no clues as to why.
Luckily my small tube cache included a spare EH. Just like plug'n'play,
the amp was dead quiet and operational again.
Having lived off
tube amps for more than 10 years, valve failures have occurred few and far
between. From Mesa Baron to Tigris, Art Audio Jota to PX-25, Audiopax
Model 88s to Yamamoto A-08S, only one EML 45 quietly giving up its ghost
sticks out in recent memory. Review amp loaners have misfired once or
twice. To see a small-signal valve go bad is even rarer than an arcing
power tube. In short, this didn't say anything bad about the Raysonic.
There's light bulbs dying half a night into being screwed in. If you don't
have a tube tester, the time-honored ritual of tracking bad tubes without
light shows is by a process of elimination. Swap out one tube at a time
with the opposite channel position until the problem appears in the other
channel. Gotcha.
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To get the most out of the Ref 3.1's sealed 4-ohm woofer in its
tiny enclosure naturally wants rather more current and drive than any of
these tube integrateds would really deliver. For the sake of reporting on
relative drive, bass control, achievable SPLs without
distortion and sonic similarities under a bit of duress, however, this
setup did make for a suitable proving ground.
While all of
these integrateds managed sufficient SPLs, none in this larger room really
made the Gallos lift off and fly. The Ref 3.1 is a very open and spacious
speaker that's quick and nearly electrostatic in aspects. Now it sounded a
bit shut in, veiled and sluggish particularly at standard and lower
levels. It didn't quite live up to its Reference billing. Still, useful
results were obtained. To wit, the Melody was the most agile and
expressive of the three, the M520 the densest and buxomest, the Raysonic
in the middle. While the M520 was fullest in the bass, the 2A3I displayed
the most pitch definition there and elsewhere, with the Raysonic again in
the middle. The 2A3 push/puller retrieved the most ambient detail followed
by the Raysonic while the Mullard circuit threw the widest soundstage. The
Eastern Electric was clearly warmish though with good macrodynamics --
those rare Mullard rectifiers -- while the Melody had the faster reflexes
and airier top end. The Raysonic maintained its middle position
throughout.
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The Raysonic was
a competent 'un then. It kept the pace with two recognized performers in
this particular price and power range. Its single-ended circuit was leaner
than the push/pull circuit of the M520. This slightly altered the profile
of the EL34s which both amps share - though in neither application did
I hear quite as much refinement, light and low-level ambient cues as
I did from the 101D-flavored, 6SN7-driven 2A3s. For my tastes and
sentiments, the Melody came first. It offered a higher level of micro
resolution coupled to the most articulated dynamics and sophistication.
The EL34 equipped amps were a bit more copperish in hue, a bit fuzzier,
less distinct around the edges and less exciting even though the
Eastern Electric held an advantage in overall verve and drive over the
Raysonic.
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From an SPL perspective, all three amps made do on the Gallos.
Predictably, the lowest two octaves lacked punch and grit compared to what
I know the speaker can do. The major failing however was the
overall veiling and lack of spark caused by insufficient overall current.
The M520 did best though it was still shy of ideal. The general sound of
this shootout conjured up plumbing in need of rotorooting. Stuff was
moving but not as briskly and freely as it should have. For the SE-30A,
I'd look at 92dB+ speaker sensitivity to hit its power sweet
spot.
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Still, this exercise established a hierarchy under these
conditions. While the Raysonic shares much with the Eastern Electric M520,
the latter is $600 cheaper, includes full remote and offers a
pre-in (naturally bypassing the volume control then and dropping circuit
gain). The SE-30A is tonally slimmer, texturally leaner and a bit paler
overall. The M520 is ballsier, with grander dynamic peaks and deeper tone
colors. On a highly efficient load like my Zu, the Raysonic conversely
holds one ace by being quieter in operation. Compared to the M520, Ray is
indeed painting with a finer-tipped if less muscular and less thrilling
brush overall.
On balance --
factoring in price and features beside performance -- the Raysonic for
once is a bit overshadowed by a Chinese competitor rather than
putting the favorable pricing screws on Western equivalents. I also
wonder whether running its pentodes in SEP rather than SET mode could
have tipped the balance in Raysonic's favor. Regardless, the Eastern
Electric would still have won on price, on remote functionality, on
adjustable feedback and ultralinear/pentode flexibility for user voicing
options - and for lacking those tube chimneys which make swapping valves
less than routine.
It's when you use
the Raysonic into highly efficient speakers like my Zus -- that is,
a bit outside of where I anticipate most of its target buyers would
shop for boxes -- that it comes into its own. Because of its ultra-quiet
operation; because of how the minor fatness and fuzziness of its EL34s are
downplayed and diluted in its voicing then; because of how its faux
triodes mimic certain real triode traits; this Raysonic piece should be
thought of and dealt with as a micro-power SET. It simply has a bit
more power under its hood than the micro denomination would
suggest.
Needless to say,
a triodized EL34 isn't exactly a 45. If it were, the DHT could pack its
fancy Gucchi bags and go home. That kind of palpability -- of sharpness
without sharpness that is conjoined to rich colors and extreme
dimensionality -- is a little beyond the EL34s. Neither do they do the
300B magic of come-hither vocal voluptuousness. Run as pentodes, the EL34
probably would exhibit a bit more pungency and spice. As is, the Raysonic
rang up Switzerland a bit in how it sat between the two other amps in a
somewhat neutral zone. Neutral is good and, politically speaking, can save
your bacon. In matters of the heart meanwhile, you might hope for a
somewhat stronger statement.
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Bass extension and weight on the Raysonic are good but not
groundbreaking - not that one would expect such from its basic concept.
Treble reach is very solid while clearly not in the
lit-up-without-being-bright leagues of 45s. The overall gestalt is more
lithe than massive, a bit more polite than fully vibrant. It's a very
competent amp that simply misses the greatness of the Melody (which might
have to do with the latter's use of that 101D). Considering Raysonic's new
M100 monos, the SE-30A with its angles and edges does clash a bit with its
all-curves CD128 companion. It's as though two different design teams had
worked separately on one model. With the M100 now using the CD-128 chassis
turned sideways, Raysonic gets it.
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Just five years ago, the choices in this sector -- affordable valve
gear -- weren't as comprehensive yet. The Raysonic then would have sailed
through graduation finals with half a crew on deck. Today and primarily
due to its landsmen, the SE-30A faces far stiffer competition. How you'll
judge it will very much depend on what you compare it to. On its own
merit, you may indeed want for nothing. Were it not for the other options
in my crib, I wouldn't have either. Especially for the very fair money
Raysonic asks. In fairness, the Melody piece as my favorite in the above
comparisons is more expensive so setting an even higher standard comes
with the territory. Choices. The more the merrier they say but it's making
it also harder and harder knowing where to begin the process. The SE-30A
is an excellent place to begin.
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