Test Report: Integrated Amplifier “Krell S-300 i” 2750 EUR

There is no longer a new integrated amplifier by Krell. The editorial on the beautiful, amazingly affordable for Krell conditions S-300i was all the more fraught.

  1. Test report: integrated amplifier “Krell S-300 i” 2750 EUR
  2. Data sheet

Krell wants to solve a problem that other manufacturers would like to first: the brand has significantly more fans and admirers as the actual owner. The 300i could shift the balance. With him, the dream, once to take a real US-power plant in the own plant, moves as close as never before – or far away, depending on how closely you can see that with the country of origin. As the new integrated amplifier is developed while in the United States, but made as first Krell device not in the headquarters in Orange, Connecticut, but in China.

While making the S-300i the cheapest Krell amp of all time, but not in the slightest fall up, would not cross there in very big letters on the back. Surface quality and accuracy of the housing are not one whit worse than the US siblings, the boards are at least equally clean, and of course the sales on the S-300i granted a five-year warranty. With its large, bright blue display and the polished volume knob in the revolver drum design sees the light-bodied, available only in silver amp also much better of than all previous integrated the company and reminds visually been more of a light version he lifted expensive noble series Evo.

Anything other than “light”, but a whopping 20 kilos is physically heavy the 300 series. 19.5 more precisely if we don’t include the pfundschwere full metal remote control. The kilos focus centered in the front half of the chassis, where a 750VA-Ringkerntrafo waiting to flood the power amplifiers with power. The giant round maintains contact with the network, what but avoids that the inrush current at each startup brings the light to flicker, it sucks but constant whopping 43 Watts from the socket in standby mode. Eco audiophile, even should there be, so prefer to fall behind the unit to the hard switch-disconnector and look forward to the rich “Klong” which the S-300i offers the advancing amperes.

Strong and smart

For power bipolar transistors fell responsible four parallel pairs per channel in the classic counter cyclical operation in the Krell. In larger Antaak continuous symmetry of signal processing in the 300i ends after the preliminary stage; the XLR connection couple on the back brought hence no sound benefits in the test with symmetric sources (Linn Akurate DS, Accuphase DP-500). Another symmetrical entrance to hide in a filigree 30-pole socket where via a supplied cable takes an iPod connector. That is, if no translation error is highly interesting, because balanced outputs are in the pin assignments of the iPod flat Jack is nowhere documented.

Whether symmetrical or not – with Apple Lossless files sounds the sleight to the Krell as a serious player. And because the iPod through its short umbilical cord at the same time gets power, also the streaming-radio applications possible with the iPod touch can be fully used, without overloading the battery – a proper tuner need then the only thing broadcasting traditionalists, who would rather fight the same quality with more effort and smaller program selection.

Punchy and discreet

The iPod touch of the author but again his usual listening space function – as a controller for the Linn Akurate DS network players took over for the actual listening test. In the playlist, including the Symphonic Dances by Rachmaninov were in the ultra-high resolution 24 bit/176.4 kHz version of reference recordings, as well as wonderfully atmospheric ambient-pop Bliss (“No. one built this moment”, noble) and a selection of amazing remastered Beatles Classics (“love”, Apple/EMI). No matter what kind of music ran, the Krell Unico secondo (105 points) played the built up as the first test unison with its own weapons on the wall – still pressure full, where the Italians put on pressure, even broader and more stable stage, more credible body for the singer.

The Americans could oppose even less easy transparency and dynamic of the Symphonic line RG9 MkIV ranking five points above the Unico. Entirely different character – the American – noble matt with wider stage, the German in the drawing, the more accurate and more present in the sound the two on a stalemate at the highest level agreed.

Krell S-300 i

Manufacturer Krell
Price €2750.00
Rating 110.0 points
Test procedure 1.0

Technical data and test results

Dimensions (W x H x D) 44,0 x 10, 0 x
44.5 cm
Weight 19.5 kg
Genus (REC / GM) Integrated amplifier
Remote control available
System remote control / Adaptive /
Front panel Black / Silver / champagne / /
Front panel other FB. No
Tone controls / switched off /
Monitor switch
Recording selector switch audio
Network jacks switched / unswitched 0 / 0
Memory / storage automatic 2 m
Sendersp. with aut. Sorting No
Input phono MM / MC /
High level RCA inputs / XLR 3 / 1
Digital inputs RCA / XLR 0 / 0
Boxes outputs A + B / switchable /
Headphone Jack
Pre-Out / main 1 /.
Recorder connections (a / from) 0
Processor input / output /
Unity gain input
Pre-Out subwoofer 0
Measured values
True sine wave power stereo 4 ohm / 8 ohm 301,0 W / 186,0 W
Music performance stereo 4 ohm / 8 ohm 323,0 W / 199,0 W
Noise line 86.0 dB(A)
Power giant with controlled, unobtrusive sound
Some listeners a touch too diffused
Sound MM
Sound MC
Sound RCA 110
Sound XLR 110
Facilities well
Operation Very good
Processing outstanding
Sound judgment Reference class 110
Price / performance Very good
tested in issue: 5 / 09