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five channel hybrid amplifier
| Regular Price: | $ 8,500.00 / Each |  | | Your Price: | $ 4,250.00 / Each | | You Save: | $ 4,250.00 / Each |
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Warranty and considerations: |
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| Warranty Terms (Parts and Labor) |
3 years |
| Free Shipping to the Continental US? |
YES! |
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The conrad-johnson Enhanced Triode (ET) Amplifiers are power amplifiers
designed to capture the best attributes of both fine vacuum-tube designs and of
the best solid-state designs. The MET150 a five-channel amplifier rated at 150
watts per channel. This sophisticated zero-feedback amplifier offers the
refinement of a vacuum-tube amplifier with the guts and control of a solid-state
amplifier.
Zero Feedback. Negative feedback is an engineering technique used to reduce
measured distortion. While feedback does achieve this goal, it also introduces
aberrations in the transient response characteristics of the circuit. We
have found that eliminating loop negative feedback can result in much finer
gradations in dynamic response (micro-dynamics) and more accurate decay on
musical transients. But eliminating negative feedback requires much more care in
the design of the circuits - both in choosing devices and in power-supply
design, and places greater demands on the parts.
The Right Device for the Job. A power amplifier has two distinctly different
functions. First, a voltage gain stage must increase the amplitude of the input
signal by a factor of about thirty. The distortion characteristics of the
amplifier are dominated by this stage. No device is better suited to accurately
amplifying signals at high amplitude than triode vacuum tubes. For our enhanced
triode amplifiers, voltage gain is provided by a 6922 vacuum tube, selected for
its ability to track a high amplitude signal accurately. Theory and 30 years of
experience have taught us that the voltage gain stage of a power amplifier
dominates the sonic character of the critical mid-range of a power amplifier,
and indeed these amplifiers exhibit the smooth, lucid midrange for which tube
amplifiers are so highly esteemed.
The high amplitude signal produced by the voltage gain stage must then be
efficiently coupled to the loudspeaker system through an output stage to produce
the power and control needed for a musically accurate response – basically to
provide current gain and a low output impedance. High-current bi-polar devices
have been specified for the output stages of these amplifiers, based on their
extremely low output impedance and their ability to handle a great deal of
current. This contributes the fast, weighty bass and seemingly limitless power
reserve that are notable in these amplifiers.
Solid Power Supplies. Rock
solid power supplies are needed to enable the audio circuits to reach their
potential on musical transients. The ET amplifiers feature oversized main
power transformers (so that the circuits are not starved for current), and
massive power storage reservoirs with high-speed capacitor shunts to deliver
quick, even startling transient response. Carefully designed DC voltage
regulators isolate the critical voltage gain stages to prevent demands of the
output stage from modulating the input signal.
Quality Parts. Conrad-Johnson components are internationally known for the
quality of their parts, and the ET amplifiers are no exception. The audio
circuits and their related power supplies utilize precision low inductance
laser-trimmed metal foil resistors. The circuits employ polypropylene,
polystyrene and Teflon capacitors extensively, except in the main power supply
storage, where high-speed electrolytics are used because of the extremely high
capacitance required. Precision-machined input/output connectors have been
carefully selected for optimal sonic performance. Even the internal wiring is
chosen on the basis of its sound quality in its specific application.
Thoughtful engineering, specification of top quality component parts, and
painstaking care taken in production make the MET150 capable of extraordinary
performance in music reproduction. We invite you to arrange an audition with
your conrad-johnson dealer to confirm for yourself the extraordinary musicality
of these amplifiers.
Specifications
Power: MET150 – 5 x 150 Watts from 20 Hz to 20 kHz at
no more than 2 % THD into 8 Ohms, or 5 x 250 Watts into 4
Ohms.
Sensitivity: MET150 - 1.5V to rated power.
Frequency Response (at 10
Watts): 20 Hz to 20 kHz, +/- .25 dB
Hum and Noise: 104 dB below rated power
Input Impedance: 100 kOhms
Tube Complement: MET150 - 5 x 6922
Dimensions:
MET150 – 16.125D x 19W x 7.188H inches
Weight: MET150 – 65 Lbs.
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