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M1200 Amplifier - Refurbished

M1200 Amplifier - Refurbished

Price is per pair.
The Stellar M1200 mono amplifiers are a high power super linear amplifier with a vacuum tube input providing uncompressed performance.
The Stellar M1200 monoblock power amplifier combines the rich warmth and musicality of vacuum tubes with the jaw-dropping power and seemingly infinite headroom of a 1200 watt high-performance output stage. This extraordinary hybrid amplifier knows no limits. From the subtlest musical whisperings to the loudest crescendos an orchestra or rock band is capable of, Stellar M1200 never flinches. Regardless of your speaker’s power demands or limitations, enjoy the once unachievable uncompressed effortlessness afforded by this design. Pure musical bliss for any loudspeaker made, from the smallest to the biggest. Stellar.

You have 14 calendar days to audition a Refurbished item from the date you received it. For more information on PS Audio Refurbished units click here.

Regular price $5,248.00 USD
Regular price $6,998.00 USD Sale price $5,248.00 USD
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  • Design

    To preserve both uncompressed dynamics as well as the tiniest of nuanced details requires a cost-no-object input stage, like that of a high-performance vacuum tube. The amp's delicate input signals, now faithfully preserved by its vacuum tube input, then need to be amplified without restriction by taking advantage of a new type of Class D output power module. This extraordinarily high current, low distortion, MOSFET output stage combines state-of-the-art topologies with decades of design and listening experience to produce what we believe is the most musically satisfying amplifier of its kind.

  • Application

    Power amplifiers delivers only the number of watts required by your speaker to achieve the desired loudness. Even the most powerful amplifiers deliver only what's asked of them. What's been missing in most amplifiers is adequate headroom and effortless linear performance—something only a vacuum tube-based powerhouse like the M1200 can unquestionably provide. From the most subtle of details to unheard of explosive dynamics, Stellar M1200 represents the pinnacle of high powered musicality that must be heard to be believed. Regardless of the power demands—or power limitations—of your loudspeakers, Stellar M1200 is the perfect choice if effortless musicality is in your future.

    Technology

    The Stellar M1200 mono amplifiers solve a classic problem with nearly every power amplifier made: sonic compression. When the orchestra gets loud and complex, or the band really starts to rock it out, most power amplifiers get out of their comfort zone and we hear their stress and strain as compression. The M1200 was designed to play any music into any loudspeaker with zero compression. Rated at 600 Watts into 8Ω and a whopping 1200 Watts into 4Ω, the M1200 combines the best of two worlds: ultra-linear, high-current, ICE Edge Class D technology for the output stage; and a discrete, Class-A vacuum tube for the all-important input stage. The M1200’s rich, warm, and beautifully nuanced reproduction of music comes first from the zero feedback, class A vacuum tube input stage. Here nothing is lost in its hand-selected 12AU7 vacuum tube, fed from its own analog power supply.

    • MONO POWER AMPLIFIER PAIR
    • ZERO-LOSS TUBE INPUT STAGE
    • POWERFUL MOSFET OUTPUT STAGE
    • RCA SINGLE ENDED INPUT
    • XLR "TRUE" BALANCED INPUT
    • 600 WATTS PER CHANNEL 8Ω
    • 1200 WATTS RMS INTO 4Ω
    • 2Ω STABLE
    • ICE EDGE TECHNOLOGY
    • DAMPING FACTOR > 1100
    • FRONT PANEL STANDBY BUTTON
    • VERY LITTLE HEAT PRODUCTION
    • DUAL, SOLID, COPPER PLATED OUTPUT POSTS
    • 27 LBS. EACH
    • INPUT 12v TRIGGER
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    Specifications - M1200 Amplifier

    Stellar M1200 Mono Amplifier

    Unit Weight 27 lbs [12.2 kg] (each)
    Unit Dimensions 17”W x 3.75”H x 12”D (13"D w/connectors)
    17”W x 7.5”H x 12”D (Stacked)
    Shipping Weight 29 lbs [13.15 kg] (each)
    Shipping Dimensions 22”W x 8”H x 17”D (each)
    Color Options Black
    Silver
    Vacuum tube type 12AU7
    Voltage Options
    (Factory set only)
    Japan 100V
    North America 120V
    Europe/Asia/Australia/New Zealand 230V
    Mains Power Inputs IEC C14
    Idle Power Consumption 27W
    Power Factor >0.9 @ rated power 4Ω
    Accessories Included US (NEMA 5-15P) (all versions)
    Schuko (CEE7/7) (230V version)
    UK (BS 1363) (230V version)
    Audio Inputs RCA (Unbalanced)
    XLR (Balanced)
    Speaker Outputs Copper base nickel plated binding posts (2 pair)
    DC Trigger Input 3.5mm 5-15VDC
    Warranty 3 years parts and labor

    Signal

    Gain 30.5dB +/-0.5dB
    Sensitivity for rated output power 2.08V
    Signal to Noise 1kHz@1200 Watts > 112dB
    Input impedance Unbalanced 50KΩ
    Balanced 100KΩ
    Output Impedance 50Hz, 2.8VRMS <0.007Ω
    Damping factor 50Hz. 2.8VRMS
    8Ω >1100
    4Ω >550
    Frequency Response 2.8VRMS into 4Ω
    10Hz – 20KHz +/- 0.5dB
    10Hz – 45KHz +0.1/-3.0dB

    THD & IM

    1KHz, 1W/4Ω < 0.005%
    10-20KHz, 1W/4Ω < 0.01%
    1KHz, 150W/4Ω < 0.02%

    Output Power

    120vac mains, 1kHz, 1% THD
    8Ω 600W minimum
    4Ω 1200W minimum
    2Ω Stable for musical transients

    Reviews

    Stellar M1200 Mono Beta Test

    I couldn't help myself, I had to listen rather than wait for them to settle in. And boy, am I glad I did even at this early stage. As I went through my various playlists in Roon, popped a few CDs, and a vinyl or two I found myself being impressed with the sound. If I had to pick a few words to describe what I was experiencing “Effortless” and “A lot of meat on this bone” and “Increased depth and separation” kept coming back to me. I found myself sitting there for several hours more than what I had initially planned on. I believe we are off to a fantastic start! Will post more soon.

    Drawn Into The Music

    After a mere 12 hours of overnight burn in via streaming SOMA FM's Groove Salad channel at normal listening volume, and volume matching pink noise within 1 dB of my current rig, I began serious listening. The first telling thing I can say is that despite my analytical intentions of writing detailed notes, I instead found myself immediately drawn into the music. I put the pen down and was struck by the involved and yet relaxed presentation. It was pressing all my buttons. Timbres and harmonic structures were accurate and balanced. Dynamic. Excellent imaging and deep wide soundstage. Deep textured bass. Excellent inner detail and ambience recovery and decay without exaggeration. Overall impression is incredibly smoooth and enjoyable. But don't interpret this comment to mean that these amps are boring or that they lack excitement. They easily made Frank Sinatra's 1952 “Only The Lonely” ballads sound powerful, full of life, and emotionally gripping. Bravo! So, more about the music.

    Questions?