Millennia M-2b
2-Channel Vacuum Tube Mic Pre
Millennia > Mic Pres, EQs & Dynamics > Mic Pre-Amps£ POA
Stock: 2-3 days
The M-2b 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.
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.
The Worlds Most Elegant Tube Mic Preamplifier
Musical, involving, euphonic
High speed transformerless, pure Class A, 350 volt
triode design
Differential topology: no attenuator pads required
Effortless dynamics, vividly realistic ambience
>35 dBu output headroom
High resolution gain control
Precision potentiometers, ultra-premium components
Built for critical professional applications
Gold audio connectors, tube sockets, and relays
3/8 thick radius extruded aluminum face plate
Durable mirror-gloss anodized finish
Mil spec 16 gauge cold-rolled steel chassis
Ultra-clean toroid power supply: internal sub-chassis
Hand machined aluminum knobs,
illuminated IT&T push buttons
Richly musical vintage vacuum tubes available
Mogami Neglex OFC audio wiring
Silver Teflon power wiring
Options
BK (DPA) +130V mic inputs
DC inputs for ideal performance with dynamic and
ribbon microphones
Musical, involving, euphonic
High speed transformerless, pure Class A, 350 volt
triode design
Differential topology: no attenuator pads required
Effortless dynamics, vividly realistic ambience
>35 dBu output headroom
High resolution gain control
Precision potentiometers, ultra-premium components
Built for critical professional applications
Gold audio connectors, tube sockets, and relays
3/8 thick radius extruded aluminum face plate
Durable mirror-gloss anodized finish
Mil spec 16 gauge cold-rolled steel chassis
Ultra-clean toroid power supply: internal sub-chassis
Hand machined aluminum knobs,
illuminated IT&T push buttons
Richly musical vintage vacuum tubes available
Mogami Neglex OFC audio wiring
Silver Teflon power wiring
Options
BK (DPA) +130V mic inputs
DC inputs for ideal performance with dynamic and
ribbon microphones
Minimum Gain:
14 dB
Maximum Gain:
(3 ranges with continuous trim)
50 dB
Frequency Response:
+0 / -3 dB
4 Hz to 130 kHz
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 Bandwidth, 0 dBu Out
< .02%
Intermodulation Distortion:
(50 Hz & 7 kHz) 35 dB Gain, +27 dBu Out
< .0009%
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
Common Mode Rejection Ratio:
30 dB Gain, 1 kHz, 100 mV C.M.
60 dB
Slew Rate:
35 dB Gain, +27 dBu Out
20 Volts per microsecond
Maximum Input Level:
20 Hz - 40 kHz, 14 dB Gain
+20 dBu (no attenuator pads required)
Maximum Output Level:
20 Hz - 40 kHz, 10 kilohm Min. Load
+35 dBu
Interchannel Crosstalk:
30 dB Gain, 1 kHz, 0 dBu Both Outputs
< 70 dB
Phantom Input Impedance:
3.800 ohms
Output Impedance:
120 ohms
DPA (B&K) Mic Powering:
+130 V dc max, (non-phantom)
Phantom Powering:
+48 V dc, +/- 2 V dc
Power Consumption:
50 watts maximum
Power Requirements Selectable:
100-120, 200-240 V ac, 50/60 Hz
Dimensions/Shipping Weight:
19 W x 3.5 H x 12 D, 26 lbs..
14 dB
Maximum Gain:
(3 ranges with continuous trim)
50 dB
Frequency Response:
+0 / -3 dB
4 Hz to 130 kHz
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 Bandwidth, 0 dBu Out
< .02%
Intermodulation Distortion:
(50 Hz & 7 kHz) 35 dB Gain, +27 dBu Out
< .0009%
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
Common Mode Rejection Ratio:
30 dB Gain, 1 kHz, 100 mV C.M.
60 dB
Slew Rate:
35 dB Gain, +27 dBu Out
20 Volts per microsecond
Maximum Input Level:
20 Hz - 40 kHz, 14 dB Gain
+20 dBu (no attenuator pads required)
Maximum Output Level:
20 Hz - 40 kHz, 10 kilohm Min. Load
+35 dBu
Interchannel Crosstalk:
30 dB Gain, 1 kHz, 0 dBu Both Outputs
< 70 dB
Phantom Input Impedance:
3.800 ohms
Output Impedance:
120 ohms
DPA (B&K) Mic Powering:
+130 V dc max, (non-phantom)
Phantom Powering:
+48 V dc, +/- 2 V dc
Power Consumption:
50 watts maximum
Power Requirements Selectable:
100-120, 200-240 V ac, 50/60 Hz
Dimensions/Shipping Weight:
19 W x 3.5 H x 12 D, 26 lbs..
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