מונובלוקים הזויים לבעלי יכולת!
Krell Evolution 600E Class A mono block Power Amp
מגברי כח מטורפים ונדירים ביותר!
הגברה מרמת אולטרא היי אנד מהמפלצות ההזויות ביותר שיוצרו, קלאס A מתוחכם ביותר ובכוח בלתי נתפס שמתחיל ב 600W ב 8 אוהם ומגיע ל 2400W ב 2 אוהם. למי שיכול להרשות לעצמו ורוצה את הטוב ביותר.
The Evolution 600e monaural amplifier sits in the middle of the Evolution e Series. Powerful enough for almost any application, the Evolution 600e is the amplifier choice in many stereo and home theater systems worldwide. This power capability is coupled to a new green operating mode that reduces standby electrical draw to a mere 2 Watts. As with all Evolution amplifiers, the Evolution 600e development began with a question, "What is the most difficult scenario this amplifier will face?" The answer is a 2 Ohm speaker load. When the final design is complete, and the amplifier is presented with a typical 8 Ohm speaker, it practically coasts. This amplifier simply sings with this stress-free load connected. Outputting a daunting 600 watts of power and coupled to Krell Evolution e Series circuit technology, the Evolution 600e is a velvet hammer.
Power Supply:
The Evolution 600e is equipped 2 2,200 VA transformers and 108,000 µF. This power source is the backbone for the output of the Evolution 600e. With this foundation, the Evolution 600e delivers 600 watts into 8 Ohms, 1,200 watts into 4 Ohms, and 2,400 watts into 2 Ohms. Internal high-current line conditioning circuitry effectively blocks RF noise entering via the AC line and compensates for any asymmetry or DC offset in the power waveforms. The amplifiers' low level and gain stages are powered via multi regulated rails that provide total immunity from supply fluctuations and assure noise-free circuit operation. Primary rail voltages are quasi-regulated, enabling an "on-demand" supply of power that is highly responsive to dynamic load.
Circuitry Highlights:
Krell's new Active Cascode Topology™ is a significant departure from traditional amplifier circuits where the positive and negative rail voltages are each applied entirely across a single row of transistors. The improved linearity and stability greatly reduces the need for negative feedback, which is known to cause sonic degradation. Krell Evolution power Amplifiers use only 14 dB of feedback throughout the topology-a small fraction of the amount implemented in typical designs.
Krell Active Cascode Topology offers several performance advantages. It breaks through bandwidth limitations of conventional designs and delivers very high current. The power bandwidth of an Evolution 900e is 120 kHz; far greater than the bandwidth of a typical high performance amplifier. The result is near perfect performance in the audible range with no phase anomalies typical of lower bandwidth designs. Because the "work" is spread across multiple devices, the amplifier is more load tolerant. Open-loop output impedance is extremely low-about one hundred times lower than with most power amplifiers-ensuring exceptional speaker control. All of these performance gains are achieved while maintaining a high rail voltage, which provides a beneficial "flywheel" effect-a de facto regulation that enables the amplifier to better deal with sudden changes in power requirement, such as those caused by large signal transients.
Specifications:
Frequency response
20 Hz to 20 kHz +0, -0.18 dB
<0.5 Hz to 120 kHz +0, -3 dB
Signal-to-noise ratio
>110 dB, wideband, unweighted, referred to full power output
>119 dB, "A"-weighted
Gain
25.4 dB
Total harmonic distortion
<0.02% at 1 kHz, at 600 W, 8 Ohms
<0.15% at 20 kHz, at 600 W, 8 Ohms
Input impedance
Single Ended: 100 kOhms
Balanced: 200 kOhms
CAST: 70 Ohms
Input sensitivity
Single Ended or Balanced: 3.72 V rms
CAST: 3.72 mA rms
Output power
600 W RMS at 8 Ohms
1200 W RMS at 4 Ohms
Output voltage
196 V peak-to-peak
69 V RMS
Output current
49 A peak
Slew rate
100 V/µs
Output Impedance
<0.030 Ohms, 20 Hz to 20 kHz
Damping Factor (referred to 8 ohms)
>270, 20 Hz to 20 kHz
Transformer
Two 2200 VA (4400 VA total) for audio circuitry
One 10 VA for digital control circuitry
Power Supply Capacitance
108,000 µF
Power consumption
Standby: 2 W
(High-current standby: 260W) Idle: 410 W
Maximum: 3800 W
Heat Output
Stand-by: 7 BTU/hr. (High-current standby: 890 BTU/hr.
Idle: 1400 BTU/hr.
Maximum: 5500 BTU/hr.
Inputs
1 single-ended via RCA connector
1 balanced via XLR connector
1 CAST via 4-pin bayonet connector
Outputs
1 pairs Krell binding posts
Dimensions
17.3 in. W x 9.8 in. H x 22.1 in. D
438 mm W x 248 mm H x 560 mm D
Weight
Shipped: 150 lb., 67.9 kg
Unit Only: 135 lb., 61.1 kg
ביקורות
https://www.stereophile.com/solidpoweramps/1206krell/index.htmlhttps://absolutesounds.com/pdf/main/press/Krell%20Evo60 ... forweb.pdfhttps://hometheaterreview.com/krell-evolution-600-mono- ... -reviewed/מחיר חו"ל 37.000 $
נמכרו בארץ סביב 240.000 ש"ח
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