Another area where the Nagra mINTed more was dynamic scale. I couldn't say whether its dynamic range was simply more linear to push compression well beyond my SPL. What I can say is that whenever the music got louder, it got rather more so with the Nagra. By driving a small Volvo C30 with 2.5-liter 5-cylinder 230HP engine and auto transmission with override, I'm very familiar with turbo boost during downshifted takeovers. A similar sense of sudden power escalation gripped me when I first heard the Swiss integrated's virtual turbo kick in without lag.

It also felt like a potent gust threw open big windows to cancel the over-there violence outside the house and bring it inside close and personal. It was a rather visceral 'whoa' moment. Nagra's switching PSU with big power trafo behaved like our Volvo: big engine, small chassis. Transition from regular cruise mode to stiff sporty acceleration was more instantaneous to uncork a bigger dynamic delta.

With the amount of metaphors I've burnt through already, I should be shampooing Jack Nicholsons' nether regions by now if the movie were As good as it gets. Instead I sportingly did warn of a rave. That demands the full kitchen-sink treatment of metaphors. It's important to give this particular performance aspect its proper due. It speaks directly to a certain sneakiness. After all, this is 'just' an integrated. We've seen how forum comments were adamant that the separates are far superior. They conveniently overlook that Nagra's engineers knew exactly what they were up to with their unusual power supply at the heart of this deck. It's a high-revving little thing. It responds harder and faster than lazier traditional linear supplies with more impressive coke-can capacitors do whose paper power doubles in trade and whose size and weight become hollow guarantors of superiority.

Swiss culture values understatement. We'd not expect Nagra's own propaganda to turn this feature into a highlight reel. From where I sit, that becomes my job now particularly since we left CH for Eire. The muzzle of understatement is off, the Irish gift of gab blessed by the Blarney Stone on. What literally drives the INT's sound is an unusually aspirated power supply. Its clearly tweaked reflexes pay dividends in bass intelligibility, voltage swings and general imperiousness to being pressured. I'm sure that you could throw some fiendish load at this deck to make me a liar. That should simply take some very deliberate stupidity. I'd never hook a sheep trailer to our small Volvo. I'd borrow our neighbor's tractor.

I'm back at sneakiness. It takes intelligence to appreciate. Even idiots understand obviousness. Sneakiness is unprepossessing. It lacks instant show-off bennies. That demands a different mind set to appreciate. I call it more sophisticated and self assured. Owning a Classic INT doesn't prove one's high-end street cred. Anyone knows that separates are far superior, that a six-year old design is way old in the tooth and soon due for dentures. So INT owners won't be just anyone. They'll be somebody. To celebrate them, here's another quote from that movie:

Carol Connelly [stunned]: "That's maybe the best compliment of my life."
Melvin Udall: "Well, maybe I overshot a little because I was aiming at just enough to keep you from walking out."

Still here? If you are, don't be surprised if an upshot of the above was remaining unfazed when things got busy. Here that didn't mean loud but layered. Whether in situ or multi-tracked didn't matter. In fact, the latter could add extra dimension whenever the ambient space around certain parts diverged. Perhaps a bass track or oboe solo was recorded off-site then emailed and patched in? These are non-musical elements about a recording's mechanics. They aren't essential to enjoy the music. Far from it! They can simply give those interested and attentive an over-the-shoulder view on production values. That's higher resolution. Despite being tonally developed so the antithesis of threadbare or unnaturally inquisitive, INT had the detail enlargement to show up overlooked mixing/mastering slips. It just wasn't freakish about resolution to highlight faux pas. Such details were available to tune into when my attention wanted. Otherwise they merged into the flow like a spot light just turned down. Turning on virtual spots to inspect aspects of a recording is a purely mental game. It's like listening to an advanced Bach fugue in a heightened state. It keeps track of the recurring massively paralleled so stacked motif. There's no holding on to any occurrence since doing so would miss others. A mind unclutched and aloof is key. Suffice to say that should you enjoy such cerebral games which rely on a certain distance so degree of abstraction, INT complies. By tendency—if such a thing may be said about any inanimate machine—listening with INT in the system simply invites more with-the-flow involvement than analytical digression. Being Swiss, Nagra may be very civilized, composed, understated and… well, neutral but my INT experience was anything but. I'd call it all hot and happily bothered.

Another quote for a final note.

Melvin Udall: You ever get an erection over a woman?
Simon Bishop: Melvin…
Melvin Udall: I mean, wouldn't your life be easier if you weren't…
Simon Bishop: You consider your life easy?
Melvin Udall [pause]: All right, I give you that one.

In 'R' mode, the remote's unmarked button becomes the power on/off switch.

Let's have that one. In today's conversation, many no longer talk determinism but choice. That's not "I am" but "I identify as". So it has become for hifi's equivalent conversation of tubes vs transistors. It's no longer particular parts which must predetermine orientation. It can be an engineer's sonic identity. Solid-state amps from Massimiliano Magri or Mario CanEver sound deeply tube, valve circuits from Linear Tube Audio fast transistor. Such examples put to the question assignation of sonic gender altogether. Nagra too are fluid to work both ways. INT's design DNA thus included their potentials. To my ears, the sound was simply very good pure solid state. Being familiar with various Nagra valve gear, my present proclivities actually prefer their transistors. Having been mostly overlooked in this catalogue, a 2015 design thus emerged as my favorite Nagra yet. I thought it a quINTessential stunner and short-list contender for audiophile retirement. Like our 2-door twin-exhaust Volvo T5 hatchback of 2014, its compact very robust chassis packs Nagra's version of a turbo-aspirated disproportionately big motor. Like the Swedish car's reputation for safety, INT ticks off all a tester's challenge boxes. Then its tuned edition surprises with very sporty reflexes not expected from a family-car brand; or in this case, civilized neutral Swiss.

In my experience, that was the Nagra Classic INT. A. Classic. Rave. Full stop.

Matthieu Latour comments: "Now I want to see that movie again. Thanks a lot for the great review. I am glad you like the INT. You might remember that I did the concept design some years ago when we were out of ideas on how to make the MSA a better amplifier. I feel like a proud father in a way even though it was a whole team effort that led to what are the Classic AMP and INT."

Reader Laszlo Almassy asks: "…You say that the INT basically duplicated the sound of the Vinnie Rossi preamp and Crayon power amp. Did you run the preamp with our without tubes? If with, what tubes did you use?…"
"Very keen question indeed. I used 7-volt Elrog ER50 direct-heated triodes in the 5V setting. And the Crayon is an essentially half-powered Nagra with Exicon laterals, current feedback and smaller SMPS."

Flip virtual page for Dawid Grzyb's 2nd opinion.