Stellar · Monoblock pair
Stellar™ M700 Monoblocks
Control and command over demanding speakers, at concert levels.
$3,498 / pair
Save up to $875 with a trade-in.
Options
Buy or audition near you
All dealers30-day in-home trial
The PS Audio Home Experience
Try it risk-free for 30 days in your own system. Love it or return it.
- Outside the US? Find your local dealer
Designed for floorstanders, typical rooms
- Power 350 W into 8Ω · 700 W into 4Ω
- Design Mono pair, one per speaker
- Stable down to 2Ω
What reviewers say
The Stellar M700 is my new favorite entry-level high-end power amplifier
With the Stellar M700, my expectations were exceeded.
I was really able to hear the amplifiers' real attributes: astonishing and accurate bass, with sparkling highs that had an almost tube-like sound.
Why choose it
A monoblock pair for less than $5,000
350 watts per channel into 8Ω, 700 into 4Ω, and stable down to 2Ω. Enough control to drive demanding speakers to concert levels.
Where it fits
The M700 is Stellar's best. Rated at 350 watts into 8Ω and 700 watts into 4Ω, a pair of these placed on any loudspeaker brings forth the lush, rich, and soul-satisfying power of two completely independent power blocks with headroom to spare. The listening experience with the M700 starts feet tapping and smiles breaking out.
Read more
The M700 is Stellar's best. Rated at 350 watts into 8Ω and 700 watts into 4Ω, a pair of these placed on any loudspeaker brings forth the lush, rich, and soul-satisfying power of two completely independent power blocks with headroom to spare. The listening experience with the M700 starts feet tapping and smiles breaking out. One listen to a hugely loud and complex musical passage effortlessly rendered by the M700 pair and you'll know you made the right choice.
A massively powerful engine, capable of effortlessly driving demanding loudspeakers to concert levels.
Design
How it's built
- 700 W
- into 4Ω, per monoblock
- 350 W
- into 8Ω
- 2Ω
- stable
- <0.1%
- THD at rated power
01
Overview
Rated at 350 Watts into 8Ω and 700 Watts into 4Ω, the M700 combines the best of two worlds: ultra linear, high-current, Class D technology for the output stage; a discrete, Class A MOSFET based Analog Cell for the all-important input stage. The Stellar M700 captures the rich, full-bodied essence of recorded music and presents it to your loudspeakers with authority and grace, never a hint of glare or unnaturalness.
Read more
Rated at 350 Watts into 8Ω and 700 Watts into 4Ω, the M700 combines the best of two worlds: ultra linear, high-current, Class D technology for the output stage; a discrete, Class A MOSFET based Analog Cell for the all-important input stage. The Stellar M700 captures the rich, full-bodied essence of recorded music and presents it to your loudspeakers with authority and grace, never a hint of glare or unnaturalness. The M700 is faithful to the music like few amplifiers are. Listeners are constantly surprised at the width and depth of the M700's soundstage; its preservation of the smallest details in reverb, room acoustics, and musical overtones; its commanding presence without intrusion; its delicate handling of subtle shadings; its authority as it grabs hold of the loudspeaker and breezes through even the most complex musical passages.
02
The Analog Cell
Stellar's design imperatives -- affordable pricing and uncompromised sonics -- were major challenges solved by the invention of a unique new circuit christened the AnalogCell. Nothing in the design of a power amplifier is more important than its input stage when preserving music's finest nuances.
Read more
Stellar's design imperatives -- affordable pricing and uncompromised sonics -- were major challenges solved by the invention of a unique new circuit christened the AnalogCell. Nothing in the design of a power amplifier is more important than its input stage when preserving music's finest nuances. Knowing full well that the input stage determines sonic character, the AnalogCell has been employed to preserve the rich details found in music. The AnalogCell is the heart of the M700's musicality, where rich overlaid layers of music's inner details are preserved even in the most complex orchestral crescendos. As a proprietary, fully differential, zero feedback, discrete, Class A MOSFET circuit, hand-tuned to capture the smallest micro dynamics without sacrificing the loudest macro dynamics music has to offer, the AnalogCell makes all the difference in preserving music's magic.
03
Output Stage
The Stellar M700 has a massive power supply and ultra-linear, high-wattage power amplification stage based on a modern Class D ICE module. Class D output stages provide near-perfect linearity, low distortion, and high efficiency.
Read more
The Stellar M700 has a massive power supply and ultra-linear, high-wattage power amplification stage based on a modern Class D ICE module. Class D output stages provide near-perfect linearity, low distortion, and high efficiency. Modern Class D amplifiers, like the type used in Stellar, extend high frequencies to about 50kHz. Human hearing limitations are 20kHz, though most listeners rarely have hearing exceeding half that. Providing excellent frequency extremes, low distortion, high efficiency, high damping factor, and a generous and powerful output of 700 watts into the most common loudspeaker loads of 4Ω, the M700 is nothing short of breathtaking. The massively powerful nature of the M700 works well with any loudspeaker—big or small—providing huge amounts of headroom and effortless sound quality for even the most demanding orchestral crescendos.
Features
At a glance
- Mono power amplifier pair
- Zero-loss analog cell input
- Powerful mosfet output stage
- Rca single-ended input
- XLR "true" balanced input
- 350 watts per 8ω channel
- 700 watts per 4ω channel
- 2ω stable
- < 0.1% THD 20 Hz 20khz at rated power
- Damping factor = 1100
- Front panel standby
- Very little heat production
- Dual, solid, copper plated output posts
- 27 lbs
Specifications
Full specifications
| Stellar M700 Mono Amplifier | |
|---|---|
| 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 | |
| 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 | |
| 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 |
Compare
How it compares
| M800 | M400 | S400 | S200 | M1200 | M700This one | S300 | Strata | |
|---|---|---|---|---|---|---|---|---|
| Price | $29,998 / pair | $17,998 / pair | $9,999 | $7,999 | $6,998 / pair | $3,498 / pair | $1,999 | $3,499 |
| Speakers & room | Large rooms, any speaker | Large floorstanders, medium to large rooms | Floorstanders, typical rooms | Bookshelf or efficient speakers, smaller rooms | Large or hard-to-drive speakers | Floorstanders, typical rooms | Bookshelf speakers, smaller rooms | Add your speakers, bookshelf or floorstanding |
| Power | 400 W into 8Ω · 800 W into 4Ω | 200 W into 8Ω · 400 W into 4Ω | 200 W into 8Ω · 400 W into 4Ω, per channel | 100 W into 8Ω · 200 W into 4Ω, per channel | 600 W into 8Ω · 1,200 W into 4Ω | 350 W into 8Ω · 700 W into 4Ω | 140 W into 8Ω · 300 W into 4Ω, per channel | — |
| Design | Mono pair, one per speaker | Mono pair, one per speaker | Stereo, one box | Stereo, one box | Mono pair, one per speaker | Mono pair, one per speaker | Stereo, one box | Integrated, one box |
| What sets it apart | 50 W of Class A bias: 99% of typical listening in pure Class A | 30 W of Class A bias | 10 W of Class A bias per channel | 10 W of Class A bias per channel | Vacuum tube input stage | Stable down to 2Ω | Dual mono, a separate power supply for each channel | Moving magnet and moving coil phono, plus a Class A headphone amp |
| What's inside | — | — | — | — | — | — | — | Streaming DAC, preamplifier, phono stage, amplifier |
Build your system
What it pairs with
Trade Up and Save
Save up to $875 on your Stellar M700 Monoblocks
Your old gear is worth more than you think. PS Audio credits the full original retail value of what you trade, up to the limit, straight off your new purchase.
- Tell us what you have. Press Start your trade-in and list your gear. Nearly any working hi-fi component counts, from any brand.
- Pay the adjusted price. At checkout you are charged only the price after your credit. Our sales team reviews every trade within 48 hours.
- Send yours back. We email a return label number. You have 30 days to ship your trade.
The fine print
What we accept. Nearly any hi-fi make and model at component level: a preamplifier, power amplifier, DAC, phono stage, loudspeaker pair, turntable, headphones or CD transport. It must work and be in respectable cosmetic condition.
What we don't. Broken or non-working products, and most accessories, phono cartridges, power cables and interconnects. Exceptions can be made based on value.
Several items? Yes. Trade as many as you like, up to the credit cap. Use "Add another" on the Trade Up form.
Not sure it qualifies? Call 800-PSAUDIO (800-772-8346) or email sales@psaudio.com, and a real person will answer.
Reviews
More reviews
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
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...
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 000/pair. I have to agree. The Stellar M700 is my new favorite entry-level high-end power amplifier
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...
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,...
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...
Read all 7 reviews
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-,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...
Questions for a specialist?
We're happy to help with system matching and upgrades. Talk to a real person at 800-PSAUDIO, Monday to Friday, 8:30 to 5 Mountain Time, or email sales@psaudio.com.
Contact a specialistOutside the US?
Buy or audition through an authorized PS Audio dealer in your country. Can't find one near you? Contact us directly.
Find your local dealerHear it in your own room
Stellar M700 Monoblocks
$3,498 / pair
- 30-day in-home trialThe PS Audio Home Experience. Love it or return it.
- Save up to $875 with a trade-inCredit comes off the price at checkout.
M700 Amplifier Pair
Details
Home Audition
Get 30 days to listen to your M700 Amplifier Pair and see if you like it. If not, send it back.
Shipping
UPS Ground USA
FedEx International
Amplifier
M700 Amplifier Pair
The Stellar M700 mono amplifiers are a massively powerful engine capable of effortlessly driving demanding loudspeaker loads to concert levels.















At home
Where it disappears into the music.
Overview
The Analog Cell
Output Stage
What owners and reviewers say
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 l...
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 balan...
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 000/pair...
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 wa...
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 nua...
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....
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-,000 USD total cost and puts me in mind of gear I've reviewed costing double this price point. The PS Audio S...
Trade up to it
You do not have to have bought from us before, and it does not have to be ours. Trade in almost any component from any brand and we credit its full original retail value against this one — up to a per-component cap that appears the moment you start a trade. See what yours is worth.
Hear it first
Every piece comes with a 30-day in-home trial. PMG Signature pieces get 60 days, with return shipping on us.
Not for sale
We build these in Boulder, Colorado, and we are glad to show our work. Paul answers questions on video most weekdays, and the factory is open to visitors.
Overview
The Analog Cell
Output Stage
Recommended products
Specifications
Stellar M700 Mono Amplifier |
|
| 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 |
|
| 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 |
|
| 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 |