- Joined
- Mar 20, 2000
- Location
- Nanaimo BC, Canada
Wow, I just heard the Millennia M-2b is discontinued for good, no more made. If I won the lottery I would have 24 channels of those and call it completed. They are simply outstanding. I feel blessed to have at least 2 channels. I guess I have what will go down as one of the worlds most amazing preamps. The M-2b are now Vintage.
The M-2b is a two channel, high voltage, transformerless, 100% Class A biased, all vacuum tube stereo microphone preamplifier 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.
Options:
- BK (DPA) +130V mic inputs
- DC inputs for ideal performance with dynamic and
Features
- 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
Specifications
- Silver Teflon power wiring
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.