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 상품명 |
크렐(Krell) PHANTOM III 프리앰프 |
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판매가 |
7,150,000원 |
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배송방법 |
택배 |
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무료 |
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Features
The Phantom III is the first Krell preamplifier to include either an optional
digital input module or a headphone output. The digital module features AES/EBU,
coaxial, and optical digital inputs for use with streaming devices or other
digital sources.
The Phantom III is the perfect centerpiece for a world class digital and
analog audio system.
Circuitry Highlights
The Phantom preamplifier is a dual monaural design with the left and right
channels afforded their own power supply regulation and individual circuit
boards. All signal gain is executed with surface mount technology using
proprietary multiple-output current mirrors with nearly 500 times the open loop
linearity of other designs. Featuring 700 kHz bandwidth in a zero feedback,
balanced, Krell Current Mode design, the Phantom III shares the same design
philosophy as its bigger brother, the flagship Phantom preamplifier. Negative
feedback is not used anywhere in the preamp, nor is it necessary. Open-loop
distortion is typically less than 0.003%. The volume control is realized with a
balanced resistor ladder - bandwidth and transient response of the preamp
circuitry are virtually unaffected by the volume setting. The headphone
circuitry is identical to the main circuitry, offering private listening with
the same performance as speaker playback.
Digital Module Highlights
The digital module supports up to 24 bit/192kHz LPCM. All digital signals are
fed to an ESS Sabre DAC and then sent to Krell's Current Mode, discrete,
balanced analog circuitry. Being a modular design, the optional digital
converter module is easily added at any time.
Power Supply Highlights
Oversized for a preamplifier, the power supply features a 95 VA transformer
and 40,000 μF of capacitance giving it the ability to respond quickly to musical
demands. The large power supply improves noise rejection and renders the Phantom
III impervious to all but the most severe AC voltage power fluctuations. A new
eco-friendly standby mode reduces power consumption to 2W
The Phantom III preamplifier is available in silver or black finish.
제품 Specifications
Inputs
2 pr. balanced via XLR connectors
3 pr. single-ended via RCA connectors
Main outputs
1 pr. balanced via XLR connector
1 pr. single-ended via RCA connector
Headphone output
1 via 3-conductor 6.35 mm (1.4 inch) connector
Control inputs
1 RS-232 input via a 9-pin
D-subminiature connector
1 remote IR detector input via a 3-conductor 3.5 mm
connector
1 12 VDC trigger input via 3.5 mm connector
Control outputs
2 individually programmable 12 VDC
trigger outputs via
2-conductor 3.5 mm connectors
Input impedance
Balanced: 40 k Ohms
Single-ended: 20 k Ohms
Output impedance
Balanced: 310 Ohms
Single-ended: 155 Ohms
Headphone: <3.0 Ohms
Gain
Balanced: 12 dB
Single-ended 6 dB
Headphone: 5.1 dB with 32 Ohm load
Volume control
Current mode, 12-bit, discrete R-2R
ladder
Input overload
>7.0 V RMS balanced or single-ended
Output overload
Balanced: >16 V RMS
Single-ended: >8 V RMS
Headphone: >3.0 V RMS, 32 Ohm
load
Frequency response
20 Hz to 20 kHz +/- 0.02 dB
0.25 Hz to 1.2 MHz +0, -3 dB
Total harmonic distortion plus noise
Balanced Output:
<0.003%, 20 Hz to 20 kHz, 4 V RMS
Headphone Output:
<0.09%, 20 Hz to 20 kHz, 2 V RMS, 32 Ohm
load
Signal-to-noise ratio
>100 dB Wideband,
unweighted
>100 dB "A" weighted, both referred to 4 v RMS
balanced
Power consumption
Standby: <2 W
Power on: 40 W
Dimensions
17.25 in.W x 3.8 in. H x 18.25 in. D
43.82 cm W x 9.65 cm H x 46.36 cm D
Weight
Preamplifier only: 23 lbs., 10.4 hg
As
shipped: 38 lbs., 17.2 kg
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