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Millennia - M-2B - Transformerless Stereo Vacuum Tube Microphone Preamplifier

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Millennia Music & Media Systems - M-2B - Transformerless Stereo Vacuum Tube Microphone Preamplifier
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The M-2b (tm) is a two channel, high voltage, transformerless, 100% Class A biased, all vacuum tube stereo microphone preamplifier unrivaled in delivering the essential nature of triode musicality.

The advanced M-2b circuits employ differential topologies, ultra-high headroom, electrically correct transformerless coupling, high voltage rails, hand-selected componentry, unfailing attention to power and ground integrity, and much more.

Why a vacuum tube mic preamplifier? All audio circuits, regardless of topology, whether tube or solid state, impart some coloration. In all topologies, Millennia seeks to minimize circuit-induced artifacts while retaining as much original sonic information as possible at the output. Nevertheless, even in these refined tube and solid-state topologies, there remain subtle sonic distinctions. If we were to subjectively characterize our vacuum tube topologies, some descriptions which come to mind include a heightened sense of ambience and "euphonic space," a subtle but enhanced musical "sweetness," and a particular quality of "intimacy" not normally associated with our solid-state designs. By contrast, one might say that Millennia's range of semiconductor products (HV-3, Mixing Suite, TT-FET paths, etc.) present a tactile, acoustically lifelike rendition of even the most difficult and complex spectra, exceptional dynamic stability, and superior objective performance in areas of THD, common mode rejection, noise, frequency response, and output drive capability.

Alas, both Millennia design topologies (vacuum tube and solid state) offer incredible realism, yet each technique approaches accuracy from a different sonic direction. Vacuum tubes offer audio performance which semiconductors cannot. Semiconductors offer audio performance which vacuum tubes cannot. Both have a significant and complimentary role in professional audio. Millennia now makes available the finest in both worlds.

Highlights

  • Transformerless, Fully Class-A, 350 Volt Triode Design
  • >35 Dbu Output Headroom
  • Optional Dpa +130v Mic Inputs
  • Gold Audio Connectors, Tube Sockets, And Relays
  • Musically Rich Vintage Vacuum Tubes Available
  • Precision Potentiometers, Ultra-Premium Components.
  • Effortless, Lifelike Musical Performance At All Dynamic Levels
  • Built For Life, Cosmetically Appealing

Specifications

MINIMUM GAIN
14 dB
MAXIMUM GAIN
50 dB
FREQUENCY RESPONSE +0 / -3 dB
4 Hz to 130 kHz
FREQUENCY RESPONSE, STEREO DEVIATION
< .10 dB
NOISE @ 50 dB Gain, 10 Hz - 30 kHz, 150 Ohm Source
-116 dB EIN
TOTAL HARMONIC DISTORTION + NOISE, 30 dB Gain, 10 Hz - 20 kHz, +0 dBu Out
< .02%
PHASE RESPONSE 35 dB Gain, 20 Hz - 20 kHz, +26 dBu Out
<10 degrees deviation
PHASE RESPONSE, STEREO DEVIATION 35 dB Gain, 20 Hz - 40 kHz, +27 dBu Out
<1 degree deviation
COMMON MODE REJECTION RATIO 30 dB Gain, 1 kHz, 100 mV C.M.
Better than 60 dB
SLEW RATE 30 dB Gain, +27 dBu Out
>20 Volts per microsecond
MAXIMUM INPUT LEVEL +20 dB Gain, 20 Hz - 40 kHz (no pad required)
+20 dBu
MAXIMUM OUTPUT LEVEL 14 - 50 dB Gain Range, 20 Hz - 40 kHz, Min 10k Ohm Load
> +35 dBu
STEREO (INTERCHANNEL) CROSSTALK
30 dB Gain, 1 kHz, +0 dBu Both Outputs
Better than -70 dB
INPUT IMPEDANCE, Phantom Input
3,800 Ohms
INPUT IMPEDANCE, DPA (B&K) High Voltage Input
9,000 Ohms
OUTPUT IMPEDANCE (transformerless vacuum tube)
120 ohms
B&K POWERING
+130 VDC, max, direct (non-phantom) powered
PHANTOM POWERING
+48 VDC, +/- 2 VDC
POWER CONSUMPTION, MAXIMUM
50 Watts
POWER REQUIREMENTS
100/120 - 200/240 VAC selectable, 50/60 Hz
DIMENSIONS
19" W x 12" D x 3.5" H

Unless stated, all measurements are balanced into 100k ohm load on a calibrated Audio Precision System One.


List Price: 
RAL Price: 
$3,495.00
$3,145.99
10% OFF! 
Tuesday 14 March, 2006
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Millennia
Millennia Music & Media Systems

Millennia Music & Media Systems

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