Power amplifiers
The power to fill your room with music.
Your amplifier is the muscle of your system. Ours have power to spare, so quiet moments stay delicate and big moments hit with full force, never strained.
What are you powering?
New to amplifiers?
A power amplifier is the muscle of your system. It takes the small signal from your preamp or source and gives your loudspeakers the power they need to fill the room with music.
Paul McGowan Signature Series
PMG Signature
Generous pure Class A sound, with the muscle to drive any speaker.
Choose a monoblock pair for the largest systems, or one stereo box for most rooms.
M800 Monoblocks
Designed for large rooms, demanding speakers
400 W per channel into 8Ω
- Two boxes
- 50 W Class A
M400 Monoblocks
Designed for large floorstanders, medium to large rooms
200 W per channel into 8Ω
- Two boxes
- 30 W Class A
S400 Stereo
Designed for floorstanders, typical rooms
200 W per channel into 8Ω
- One box
- 10 W Class A
S200 Stereo
Designed for bookshelf or efficient speakers, smaller rooms
100 W per channel into 8Ω
- One box
- 10 W Class A
PMG Signature Series
Our founder's name,
on the front.
Paul McGowan started PS Audio in 1973. The PMG Signature Series carries his name, and it is the finest amplification we have ever built: one topology, designed by Darren Myers and engineered by Bob Stadtherr, with generous Class A bias that keeps your music in the amplifier's sweetest, most linear region.
“Our finest power amplifier, period.”
- Up to 50 W
- pure Class A
- >500 kHz
- bandwidth
- 60 days
- in-home trial, return shipping on us
High-current, accessible
Stellar
The way into separates. High-current amplifiers that drive demanding speakers without a PMG price.
M1200 Monoblocks
Designed for large or hard-to-drive speakers
600 W per channel into 8Ω
- Two boxes
- Tube input
M700 Monoblocks
Designed for floorstanders, typical rooms
350 W per channel into 8Ω
- Two boxes
- Stable to 2Ω
S300 Stereo
Designed for bookshelf speakers, smaller rooms
140 W per channel into 8Ω
- One box
- Dual mono
Using a receiver or an all-in-one?
Have it all in one box.
There's no reason to give up performance. A preamplifier, a full-featured DAC, a phono stage and a 150-watt amplifier, in one chassis. Just add speakers.
Stellar Strata MK2 · $3,499
View Strata MK2What you'll hear
Effortless power
Big moments arrive with full force, never strained, even when the music asks for everything at once.
Nothing added
Low feedback lets the music through without coloring it.
Natural tone
From the deepest bass to warm, sweet, natural highs.
Compare all 8 side by side
| Model | PMG M800 Monoblock | PMG M400 Monoblock | PMG S400 Stereo | PMG S200 Stereo | M1200 Amplifier Pair | M700 Amplifier Pair | S300 Amplifier | Stellar Strata MK2 |
|---|---|---|---|---|---|---|---|---|
| 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 · 1200 W into 4Ω | 350 W into 8Ω · 700 W into 4Ω | 140 W into 8Ω · 300 W into 4Ω, per channel | 150 W 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: streaming DAC, preamplifier, phono stage and amplifier |
| 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 |
“The M1200 is not a good amplifier; it is a superb one.”