HI FI NEWS & REVIEWS JANUARY 2004
CROFT INTEGRATED
(formerly the GC-i)
Minimalist master Croft breaks with tradition
with a Valve/MOSFET hybrid
by KEN KESSLER
Sometimes it must seem that Croft is a personal cause célèbre as I've
reviewed a disproportionate number of its products. I've yet to be disappointed,
and I continue to marvel at Glenn Croft's ability to make so much out of so little
- he's a true minimalist. His approach to audio design is like that of Italians to
cooking: make magic with as few ingredients as possible. Now he's added another
integrated amplifier to the company's roster, and this one raises the bar higher
once more.
This is particularly true if you're a hard-core, hair-shirt audiophile who can do
without the frills. And this is very important. If you prefer, say, a fully loaded
VW Polo over a refurbished Citroen 2CV, then you need to look elsewhere for a
tube-hybrid integrated amplifier with a reasonable price tag. A Copland is an
obvious alternative or one of the stunning Unicos from Unison Research - there are
plenty of amplifiers that stop short of self abnegation. When you talk Croft, you're
dealing with the pioneer spirit, with a small "p". However: the company's first
tube/MOSFET hybrid at least shows the world that minimalism can be, well, elegant.
On the surface, Croft's new integrated (working title "GC-i"- which is a helluva lot
better name than the original "Nullantine") is an extreme departure for the company.
Indeed there are many breaks from Croft tradition to consider. Instead of the
sadistically cruel pair of volume controls without detents, this product has a lovely,
single, stepped, carbon-film, potentiometer. Moreover, it has a feel that wouldn't
disgrace a 10k maga-amp. Next, it comes with a beautiful Perspex front panel, with a
cool blue illumination to show power on (via a front panel toggle) and which of the
four line inputs is selected.
It has really sensible, useful speaker terminals. And it's well made: the case is
stainless steel, with six circular heating vents filled with nicely-made grilles.
In other words, this is the first Croft ever that doesn't make you want to avert
your eyes and reach for the sick bag. And it sounds like it costs £3000.
Hang on... Let's calm down. Just so the guys who do make £3000 amps don't accuse me
of piddling on their parade, I used the words "hair shirt" above, the classy finish
and look don't alter the fact that the GC-i is minimalist. It's also line level only,
despite a socket labelled "phono". It is aimed at people who only want to listen to
their music and really don't care about anything else.
What Glenn Croft has pulled off is a minor miracle, and with great panache.
But what Croft has pulled off is a minor miracle, and with great panache. Y'see, this
little bugger appears to drive anything, despite its power rating, despite any concerns
about impedance. The only downside is that it's not as warm-sounding as an all-valve
Croft. That's it. So I am expecting serious hate mail from certain quarters when I tell
you that I had no trouble driving Wilson's WATT Puppy System 7 loud speakers to seriously
loud levels without a single sign of duress from this baby. Build quality is excellent
(see technology box), and even the fittings on the back will surprise those who still
think of Croft in Micro (HFN Sept 86) terms. The speaker posts are the kind I
like-multi-way and usable, unlike certain WBTs-and the gold plated phono sockets for
the four line sources and tape out are stout and secure. Also on the back is an IEC mains
input and three user replaceable fuses.
Amusingly, the one test I didn't try is the one Croft cites on its bizarre website, that
of shorting the terminals. This amplifier put up with so much abuse that I couldn't bring
myself to do anything else to it. Making it drive a pair of Wilson WATT Puppy 7s to high
levels for a sustained period is proof enough that the unit has that indomitable Battle
of Britain spirit. (As for the website, avoid it if you don't believe in alternative
medicine, read the Guardian, smoke whacky 'baccy or think that Alistair Crowleigh was cool.
I haven't seen such addled, celestial drivel since the days of the first LP from Haphash
and the Coloured Coat).
Showing no mercy, I dropped the Croft in place without paying any concern to price or-as
above-impedance. The source was the deliriously expensive SME 30 turntable with SME Series
V arm and Koetsu Urishi cartridge, feeding the EAT 324 phono stage; while for CD I used
the Marantz CD-12/DA-12. In addition to the Wilson's, I also had a go at the hungry Sonus
Faber Guarneri and 100-ohm LS3/5A speakers. Wiring throughout was from Transparent. Here's
the crunch: the system ranged in total cost between £35.000 and £50.000.
Croft charges £1250 for this GC-i integrated amplifier... and it did not embarrass itself.
For those of you who, as I, have a long-running with Croft gear, you know what to expect,
with two exceptions to the form. Unlike the all-tube gear, The GC-i is almost ghostly quiet.
Some may miss that hint of tube ssshhhhh, in the way that there are people who can't sleep
without some low level noise around... or without a trace of crackle to their vinyl. That's
the upside to MOSFET output stages the other? The aforementioned reduction in warmth. Now
those are the immediately apparent indications that this is to standard Croft what Emporio
is to Armani. But there are some gains to GC-i ownership (luscious looks aside) that will
make the marque much more appealing to a wider crowd and to precisely the sort of consumer
who really doesn't want two cans and a piece of string, even if ol' Glenn Croft can make
'em sound like 50k's worth of OTL. No, what makes this Croft for everyman are drier,
tighter bass (read: more modern) and a more crisp top end.
No, it is not too transistor-ish, and the baby has not been thrown out of the bathwater.
I'm not kidding: The GC-i sounds exactly like a Croft should; only it's the naughty kid
brother to the older family heir. It's an adult "rock" amplifier, loving every twang of
the Thorns, the raunch of Willy DeVille, the wry of the late, great Warren Zevon.
(Please, go buy his swan song, The Wind). Then again, a dose of Ella Fitzgerald's Clap Hands,
Here comes Charlie on 200 grammes worth of classic vinyl sounded so sweet and rich that it
was a direct comparison with an all-tube alternative T+A's V-10 of the McIntosh C2200/MC2102
combination.
And that's where the fun started. Both of those offer way more power than the Croft, and
sounded more willing to go loud - but that was using either to extremes. The Croft manfully
delivered ample - and more than ample - levels with two of the toughest speakers around.
So I made a phone call to distributor Eminent Audio, who admitted to as much bafflement and
surprise as I did.
It turns out that the GC-i has confounding Croft ever since the first samples hit the stores.
The amplifier has been taking on bigger, beefier competitors and slaughtering them, a real
David versus Goliath scenario. Remember: Eminent Audio didn't prompt me, didn't tell me to
try the Croft with products beyond its class... I just did. And I came away with even more
respect for Glenn Croft's wares than I had before. At last, a Croft about which I'm not
able to crack "ugly-step-sister" jokes.
Ken Kessler
| Technology |
| Fitted with a pair of ECC83 drivers operating in Class A mode and
driving two MOSFET output devices per channel, the GC-i is rated at
approximately 30W per channel into 4 ohms, or 40-50W per channel,
with 8 ohm loads. Part of the company's new Transvalve line, it's a
design that is "...basically similar to Croft's long-serving, familiar
output-transformerless circuits, but translated to new circuitry,"
according to Amar Biswas of Eminent Audio. (Glenn Croft himself
redefines "reclusive".)
It was explained that this Croft integrated was designed using allvalve
references, with MOSFETs substituted into the valve equivalent,
so spiritually, at least--the GC-i is a valve amp. It reminded me of the
point made by Tim de Paravicini's first Yoshinos; both single-ended,
but one solid-state and one valve.
Inside the 75 x 405 x 315mm (hwd) case is total adherence to Croft
values. In other words, no PCBs-everything being hard-wired. There
are even strips of copper for the earthing - vertical constructs to hold
the active devices. And when you pick it up, it seems a bit unbalanced,
that's down to the massive 300VA toroidal power supply fitted in the
left-hand side. Large capacitors, rock-solid construction, not one
unnecessary "bit" - truly tidy wiring. |
| Key Features |
Lower noise levels than all-valve designs
Excellent build and attention to detail
Ample power output |
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