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Idiomas disponibles
Idiomas disponibles
INTRODUCTION:
The SF-220 Preamplifier has a circuit that latches the output stage with the input stage to obtain an unusually
high-frequency response and transient velocity. This technology resolves the signal with great instrumental detail full of tonal
richness and achieves a low output impedance. Capable of efficiently driving any solid-state or tube amplifier without audible
interactions or loss of audio quality.
Our SF-220 features a beautiful wood-carved remote control. The use of premium components complements the advanced
design of the SF220. Gold-tipped electromagnetic relays control all operations on this preamplifier, plus it features a
motorized potentiometer to maintain the integrity of the analog signal. Among its Premium components, the gold PCB plate
stands out, which guarantees maximum conductivity and audiophile-grade elements that help give the characteristic sound.
The power supply in this equipment is of the SHUNT type. As it does not have a feedback loop circuit, it does not induce
harmonics, which is why it helps maintain the audio signal's integrity. Bypass technology provides a dramatic improvement
in Q damping, the critical factor in voltage regulation for those stages. Good regulation reduces the loss of signal integrity
that occurs when the signal itself changes the operating point. Damping is critical to overall performance, including
smoother transient response and extensive staging.
Our new SHUNT power supply is virtually indestructible due to specially designed dimming technology protecting
equipment from major tube failure. The active damping of the filament minimizes the microphonic effect produced by the
bulbs.
ANA® (Neuro-Acoustic Alignment).
NEURO-ACOUSTIC ALIGNMENT (ANA)
The ANA® technology (Neuro-Acoustic Alignment) is one of Margules' technological innovations developed from a fundamental
principle: the human brain perceives sound by prioritizing the harmonic structure above fundamental tone; that is, it focuses on
how humans perceive sound and not on how we measure it.
This technological advance originates from the engaging sound theory and is based on the way in which our brain decodes the
information from the sound waves through the ears: when sounds are closer, they keep us focused due to the relation between
perception and sound, the distance at which we perceive them and their intelligibility, whereas distant sounds, even when
intelligible, do not catch our attention and are easily ignored.
Our ANA® technology is designed to achieve a realistic sound, with a wide frequency response, low distortion and precise
harmonic reproduction, optimizing to the utmost the relationship between the source and the receiver, so that you can enjoy your
music in a way you have never experienced before.
TECHNICAL SPECIFICATIONS:
Frequency Response:
TDH:
Max Output Level:
Signal/Noise Ratio:
Gain:
Raise Time:
Fall Time:
Power Consumption (máx.):
Weight:
Dimensions (height, width, depth):
5-400 khz
<0.014% máx
30 v
>80dB
6 dB
6 micro sec
6 micro sec
55 w
14 kg
13.6 cm x 44 cm x 3 cm
ENGLISH - 12
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