M700 Amplifier
M700 Amplifier
The Stellar M700 mono amplifiers are a massively powerful engine capable of effortlessly driving demanding loudspeaker loads to concert levels.
Enjoy an unheard of level of control and command from your loudspeakers with the Stellar M700, one of the most extraordinary under $5,000 power amplifier pair ever crafted. With its mighty 700 watt engine connected to any sized loudspeaker, the M700 monoblocks deliver extraordinarily effortless linear headroom that seems to go on forever. Dynamics like you've rarely experienced before. Slam, control, toe-tapping pacing, and music’s subterranean depths are effortlessly delivered to any loudspeaker from the most efficient to the most demanding. Revel in rich layers of fine, full detail you might have been missing before Stellar. Marvel at the deep, extraordinary, wall-to-wall soundstage. Control your loudspeakers as never before. Effortless. Lush. Stellar.
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Design
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Features
Specifications - M700 Amplifier
Stellar M700 Mono Amplifier |
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Unit Weight | 13 lbs [5.9 kg] (each) |
Unit Dimensions | 17”W x 3”H x 12”D (13"D w/connectors) 17”W x 6”H x 12”D (Stacked) |
Shipping Weight | 16.5 lbs [7.5 kg] (each) |
Shipping Dimensions | 22”W x 8”H x 17”D (each) |
Color Options | Black Silver |
Voltage Options (Factory set only) |
Japan 100V North America 120V Europe/Asia/Australia/New Zealand 230V |
Mains Power Inputs | IEC C14 |
Idle Power Consumption | 23W |
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 |
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Gain | 30.5dB +/-0.5dB |
Sensitivity for rated output power | 1.6V |
Noise | 1kHz@700 Watts < -105dB |
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 – 50KHz +0.1/-3.0dB |
THD&IM |
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1KHz, 1W/4Ω | <0.02% |
10-20KHz, 1W/4Ω | <0.02% |
10-50KHz, 1W/4Ω | < 0.05% (90kHz BW) |
1KHz, 87.5W/4Ω | < 0.015% |
Output Power |
120vac mains, 1kHz, 1% THD |
8Ω | 350W minimum |
4Ω | 700W minimum |
2Ω | Stable for musical transients |
Reviews
They are a revelation!
I have had the 700's for several months now and all I can say is..."WOW!" Even after the burn in period at
PS Audio, that was not the end of the burn in process. It's taken a few more months and I don't even know
now if they will continue to do this. However, I can't tell you enough of what these amps have done for me
in terms of detail and no compression of sound in loud passages of music/film. For me, they are a
revelation! It's only been in the last month or so that actors, orchestras, soloists have exited the
speakers and are in my home theater room! The Maggies are so much more in richness and dynamics that I
really can't believe it! I had a gut feeling prior to purchasing them that I was in for something very
special and that's putting it mildly! I've received Paul's emails over the years and actually this was a
blind purchase but the price was certainly right for each of the six amps and the trade in of my Carver 7
channel amp was financially sufficient enough that the value given me would cover one and a half of the
700's!
- Edward Weinman
Bravo!
I just replaced my Parasound Halo A21 amp with your M700's. All of my electronics are now PS Audio: BHK pre,
P5 power conditioner, memory player, Direct Stream DAC, and now the m700”s. Each new piece marked an
improvement in my system. But the addition of the amp took my system into some place magical. When I read
equipment reviews, I am often skeptical of the claims therein. I have to say that the level of musical
engagement was so palpable as to defy belief. There was great clarity and even 3-dimensionality with the
PArasound, but the M700's brought something else into the field. It is almost impossible for me to hear my
music and not want to move with it. That is the way I feel at a club or a concert hall. Now it is in my
living room. Every one of my friends who have heard my system as I have slowly built it has been impressed,
but the final handshake between all your components is something beyond my explanation. Obviously, I am a
fan, but there are times when you need to give praise for the efforts and dedication that you people bring
to your products. Bravo!
- Clifford
All PS Audio components I've encountered (or owned) are incredibly
well-built and the Stellar line is no exception. They have a weight, look and feel that exudes quality
belying their sub-$5,000 USD total cost and puts me in mind of gear I've reviewed costing double this price
point. The PS Audio Stellar 'three-fer' proved itself to sound far more captivating, powerful, lyrical,
musical and possess a humanity to its sonic signature in playback of all types of music than I previously
thought a preamplifier and mono blocks priced under $5,000 USD would be capable of. They would, without
fail, elicit both an emotional and physical reaction whenever I played music through them and their lack of
digital pretense and healthy dose of analog spirit was a listening experience which I embraced.
AudioStream
Rafe Arnott
I was really able to hear the amplifiers' real attributes: astonishing
and accurate bass, with sparkling highs that had an almost tube-like sound. How did they accomplish this in
such a small footprint for such an amazing price? In the end I believe this is the top of the line in its
price range. Nothing comes close—the sheer amount of power and sound quality that comes from these little
chassis is nothing but pure engineering magic. Kudos to the PS Audio team for coming up with such a simple
yet ingenious design. In my world of 30-somethings, there are a ton of people interested in high-end audio
but don't want to spend 10k on an amplifier. Well, this is the amp that I recommend every time.
Positive Feedback
Pete Davey
I could not fault the sound of the Gain Cell DAC -- its neutrality and
honesty were captivating, leading to compelling listening. During my time with it and the pair of M700s, I
always felt they had total control over whatever music was thrown at them, in whatever format. From the
understated nuance of an unaccompanied lute to the bombast of a symphony orchestra going full tilt, the
laid-back drive of dub or the pulse of electronica, I not once felt deprived of any of the music's emotion,
rhythm, dynamics or detail. Whether using planar, stand-mounted or floorstanding speakers, I knew...
The Audio Beat
Guy Lemcoe
PS Audio has been on a roll. That roll continues with the Stellar M700
power amplifier. I have had nothing but good experience with PS Audio products; still, with the Stellar
M700, my expectations were exceeded. Having little sound of its own, the M700 delivered well-balanced
reproduction that was always faithful to the music… the Stellar M700s came ever so close to matching the
sound of my high-end reference monoblocks, Theta Digital's Prometheuses—which are ranked Class A in
"Recommended Components" and, at $12,000/pair, cost four times as much as the PS Audios. The Stellar M700 is
an outstanding bargain.
Stereophile
Robert Deutsch
I've been putting source material through the rig with the PS Audio
Stellar M700's Mono amps for a month and I have been consistently impressed with their musicality and get up
and go. These powerful PS Audio Stellar M700 Mono amplifiers are capable of effortlessly driving demanding
loudspeaker loads to concert levels. This may be the first higher-priced component I can't live with out...
but wait, there's more! At $2995 per pair, they're not higher priced, just bit of a stretch for my thin
wallet. If my 83 dB sensitive speakers have anything to say about it, these review amps have found a new
home.
Stereo Times
Greg Voth
In the Stellar M700, PS Audio has designed excellent sounding mono
amps that can be the foundation of a reasonably priced high-end audio system. The analog input section is as
expansive and natural sounding as the ICE amp modules are powerful and accurate. The resulting sound is a
wonderful balance between expression and precision, allowing the amps to disappear within the audio chain.
They clearly take on the signal they are fed, allowing a great front end to weave its audio magic.
Positive Feedback
Gary L Beard
There are many excellent-sounding amplifiers in this price range, but
few can put out anywhere near as much power as the Stellar M700, and most of those that do don't sound as
refined. PS Audio says that the Stellar M700 is one of the most extraordinary monoblocks ever sold for less
than $5000/pair. I have to agree. The Stellar M700 is my new favorite entry-level high-end power amplifier.