The new PS Audio 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.
The Stellar M700 preserves 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.
Power amplifiers deliver 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.
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.
Priced Per Pair.
Specifications:
| 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 |
