הכירו את ההגברה שלא שמעתם עליה מעולם – ספינת הדגל של Ps Audio
ושל סדרת העל היוקרתית PMG הלוא הוא PMG-800 Signature.

מדובר בהגברה פורצת דרך של המהנדסים: Darren Myers ו- Bob Stadtherr
אשר יצרו פריצת דרך טכנולוגית ויצרו הגברה שעדיין לא קיימת בעולם!
מדובר במגבר העובד עד 60 וואט ב-Class A טהור (המשמעות היא ש-99% מזמן הנגינה תהיו בתחום A)
מה שמעניק צליל טהור ועשיר,טבעי ובעל גוף מלא ללא עיוותים כלל וכלל.

מה שמייחד את כל ההגברה והדגמים של סדרת ה-PMG והופך אותה לפורצת דרך וייחודית
זה שהמהנדסים משתמשים בספק אקטיבי עוצמתי ומהיר במקום שנאי טורואידי עגול ואיטי
הקורס במצבי שינוי מהירים ותובעניים.
כאן הספק האקטיבי מנצח ומספק זרם מיידי במהירות חסרת תקדים (אלפיות השנייה) תוך שמירה על רצפת רעש אפסית
ומספק לרמקולים את הכוח הדרוש מההגברה כשצריך.
לדוגמה: בעת מכת תוף עוצמתית או בניגון הרכב קלאסי או מטאל שבו ההגברה נדרשת לעמוד בשינוי י מצב מהירים
בין מצב אתנחתא בו המגבר שרוי במרבית הנגינה לבין מצב עבודה בו הוא נדרש לספק לחלקיקי שנייה כח וזרם מתפרץ. (מצב שבו כל השנאים העגולים שהכרנו קורסים לחלוטין)
בנוסף ישנו רוחב פס רחב במיוחד העולה על 500 kHz ומהירות Slew Rate אדירה פי כמה וכמה משנאי רגיל – נתונים המבטיחים שחזור אות מדויק להפליא
של אותות מהירים (Transients) ללא כל עיוות Clipping בשונה מהגברה רגילה.
טופולגיית משוב נמוכה ומעגל ייחודי המבוסס על זרם ישיר לשמירה על אות מוזיקלי טהורה ונאמנה למקור.

כשמאזינים להגברה PMG המבוססת על מעגל Class A טהור עם ספק אקטיבי מהיר
המאזין חווה האזנה יוצאת דופן עם רקע שקט לחלוטין (Black Background) עם הפרדת כלים מופלאה ובמה תלת ממדית ועמוקה במיוחד.
בנוסף בגלל השליטה המהירה והעוצמתית מנעד הבס הופך להיות הדוק וללא מריחות כלל כאשר המידרנ'ג והגבוהים נשארים פתוחים וצלולים להפליא
ללא כל עיוות או עייפות אוזן המאזין.

ההגברה PMG זו לא עוד הגברה נוספת – זו הגברה עם פריצת דרך טכנולוגית וקשה מאוד ליישום הנדסי.
מי שיאזין להגברה הזו לא יחזור לעולם אחורה להגברה הקלאסית המיושנת.

ההגברה PMG קיימת בגירסאות של מגברי כוח ( PMG S-200 ו- PMG S-400) וגירסה מונובלוק PMG M-200 ו-M-400
כך שכל אחד יכול ליהנות מפסגה טכנולוגית ויצירת המופת של מהנדסי PMG בהתאם לצרכיו ותקציבו האישי.

תיאור מוצר

PMG Signature · Flagship

The new M800
Monoblock

The flagship of the PMG Signature Series. The best power amplifier PS Audio has ever built — period

.800watts · 4ΩPower

50WClass A bias>500 kHzBandwidth>200V/µSSlew rateState of the artDistortion vs. frequency

PMG M800 Monoblock

The flagship of the PMG Signature Series. The best power amplifier PS Audio has ever built — period.

PS Audio has been designing and building amplifiers for half a century. Every one has been a step toward sonic perfection — each teaching us something the last could not: about power supplies, about feedback, about the quiet ways an amplifier can color the music it carries. The M800 is where that road arrives.
Eight hundred watts into 4 ohms, doubling cleanly down from 400 into 8 — decisive, effortless, never strained.
But power was never the hard part. Speed, evenness, and restraint were. The M800 is the first amplifier we've built to hold all three at once.
Its slew rate exceeds 200 volts per microsecond. Hand it a 10 kHz square wave — the cruelest signal in audio — and it returns vertical edges and flat tops, no overshoot, no ringing. In fifty years we have never seen one this perfect. Distortion stays flat and low across the entire audible band, never trading one frequency for another. And it does all of this with strikingly low overall feedback — no heavy correction, just the music. Remarkable.
Designed by Darren Myers. Engineered by Bob Stadtherr. Hand-built in Boulder, Colorado.

Design

The M800's character begins with its power supply. Where a conventional amplifier leans on a heavy passive transformer, the M800 is built around a state-of-the-art active power supply — a design that delivers current with a speed and stability no transformer-based supply can match. Around it sits Darren Myers' low-feedback current-based topology, chosen deliberately: the less an amplifier has to correct itself, the more honestly it passes the signal through. Every M800 is assembled and tested by hand in Boulder, Colorado, and brought into production by Bob Stadtherr — whose work ensures the amplifier you receive measures and sounds exactly like the one Darren designed.

Application

Each M800 is a monoblock — one chassis, one channel — sold as a pair for stereo. With 800 watts into 4 ohms and the current to double down without strain, a pair will drive virtually any loudspeaker made, from sensitive horns and electrostatics to the most demanding low-impedance reference designs. There is no speaker too difficult and no room too large. If you own loudspeakers that have humbled other amplifiers, the M800 is the pairing that ends the search.

Class A purity

Class A is the most linear way an amplifier can operate — and the most expensive. In a Class A output stage, every transistor conducts through the entire musical waveform and never switches off. There is no crossover point, no moment where one device hands off to another, no discontinuity for the music to stumble across. It is, simply, the purest mode of amplification known.
It is also brutally inefficient. A Class A stage runs hot and draws power continuously, even in silence, because its transistors are always fully active. That cost is why true Class A is so rare. It is rare for a high-end amplifier to deliver even a single watt of genuine, pure Class A — most designs that advertise the term operate in it for only a fraction of a watt before sliding into Class AB.
The M800 carries 50 watts of pure Class A bias. Fifty. Not a fraction of a watt, but fifty full watts before the output stage ever leaves its most linear region. For 99% of normal listening — and nearly all music lives well within that window — the M800 never crosses a notch, never sees a discontinuity, never asks its circuitry to correct an artifact it should not have created. What you hear is the natural texture of the recording: the body of a cello, the air around a voice, the decay of a struck cymbal, all intact. This is what Class A was always supposed to sound like. The M800 simply commits to it.

Power is The Key

A power amplifier is, fundamentally, an interface between a reservoir of energy and the loudspeaker. The character of that reservoir — how cleanly it stores energy, how instantly it can deliver it, how silent it is at rest — determines more about how an amplifier sounds than any other single design choice. For half a century, the high-end audio industry has approached this with passive supplies: large linear transformers feeding banks of electrolytic capacitors. The approach works. It also imposes real limitations. The transformer is the slowest element in the amplifier's signal path. The capacitors store charge but cannot return it without ripple. The rectifier introduces switching noise every time it transitions. And the entire arrangement is sized for a peak demand it will almost never actually see.
The M800 is built on a state-of-the-art active power supply that delivers performance benefits no traditional transformer-based passive supply can match. Instant transient response with no rectifier-induced noise. A vanishingly low residual noise floor. Total grip on the speaker at any output level. Full continuous output without sag. The active supply is the M800's foundation — silent, fast, and capable of delivering everything the output stage asks for the moment it asks for it.

The PMG disappears into the Music

Negative feedback is the most powerful tool an amplifier designer has — and the most easily abused. Applied in large amounts, it can drive measured distortion on a steady-state test tone almost to zero. It looks spectacular on a spec sheet. But feedback works by continuously comparing the output to the input and correcting the difference, and that correction is never quite instantaneous. With music — which is nothing but transients, never a steady tone — heavy feedback always arrives a fraction late. The amplifier spends its life chasing the signal rather than following it. Transients lose their edge. Immediacy fades. The performance begins to feel like a recording of a performance.
The M800 is built on the opposite philosophy: strikingly low overall feedback. Because its output stage is already extraordinarily linear on its own — running deep in pure Class A, where correction is barely needed — the M800 does not have to lean on a heavy feedback loop to clean up after itself. Distortion stays uniformly low across the entire audible band not by aggressive correction, but because there was little to correct in the first place.
What this produces is the M800's defining quality, and the hardest to put into words: it disappears. The electronics stop announcing themselves. The speakers and the source seem to dissolve, and what remains is the performance — present, immediate, and whole. Eight hundred watts of authority, delivered with the openness of a far smaller amplifier. The M800 gives you both.