A The bus capacitors in the M1’s output stage are replenished 200,000 times per second instead of 100 or 120 times per second as is the case with linear power supplies. Bob Gassal from Anthem Electronics - Paradigm Speakers sister company - has a chat to Stephen Lee from Audio Trends about Anthem and the new pocket rocket M1 Power Amplifier. Pair of Anthem Statement M1 Monaural Amplifiers - 1000 watts into 8 ohms. The M1 has a bridge-mode configuration using MOSFET power transistors, which means that its output is balanced, isolated from ground, and has lower ripple because it effectively doubles the supply ripple frequency and halves its voltage. This is 87.5 times better than SACD. This is not to say that nothing ever changes nor that careful listening cannot reveal greater insights over time. Class D amplifiers suffer from ‘dead time,’ an ugly form of crossover distortion. digital. Left: Power supply without PFC. If they are using Bruno Putzeys' Hypex modules, then yes, a class-D amplifier can be made to work successfully. Designed and engineered in our advanced research center in Ottawa, Canada, … the better since more power requires a physically heavier, Ideal for subwoofers I think, but what about the rest of the system? Class D amps suffer from shaped noise floors which vary dynamically according to signal level. Power supply capacitors become more efficient because bridging doubles the ripple frequency while impedance and ripple voltage are halved, allowing the power supply capacitors to be more efficient. Stable into all loads including open circuit and short circuit. High-feedback switch-mode power supplies react dynamically causing power draw variations and encouraging cross-modulation. Based on some of your measurements, I am now going to go audition a pair rather than purchase outright on a trial peroid. The M1's appearance and heritage, and the prospect of nearly limitless power, made the wait for its delivery seem, as when one orders out for dinner, much longer than it was. The distance requirement also applies to spacing inside transformers, making them larger and more expensive. Manuals, Literature & Remote Control Codes. In any case, the M1’s time resolution is well below noise floor limits and theoretical arguments are a wash when compared to the actual listening test results done in real world setups. Seems a bit complicated for me. both are present. In unbiased double-blind listening tests comparing the M1 with renowned audiophile class AB amps, we proved the M1 provides consistent audiophile sound with unhampered clarity and focus. Surprisingly, they suggested that I plug them all into one line, but that if I used only two M1s, to plug each into its own line. Second, in addition to the well-known efficiency of class-D circuitry, the M1 has an internal heat-pipe cooling system that allows multiple M1s to be stacked without the need for fans or bristling arrays of heatsink fins. M1 amplifier pdf manual download. I respond to this review as I am looking at this Anthem product reviewed with near perfect technicial measurements. inherently flawed. An amp so mechanically silent it will suit even the quietest listening room. Signal Processor, outside the signal path, is used for power Flat frequency response into any load, without having to resort to digital conversion or equalization to compensate. sources — the fluid in that end evaporates. Power Factor Correction (PFC) maximizes available power and at the "That is one reason why I am convinced that the vast majority of these reports are due to observer adaptation. I asked Anthem how best to set up three M1s with my two 15A lines. M Series » Isn't all about how it "sounds"? rack-mounted, the 20-kb M1 occupies only one rack space but signal’s more familiar up-and-down amplitude variation, not at I'm suprised Anthem would release such a product for they can easily duplicate the measurements in this review. A Digital A design that allows multiple units to be stacked with no danger of overheating. Well, experience can encompass an interaction via any of our senses but, yes, our ears are the primary interface. No relays are used in the signal path preventing any possibility of relay failure. Although more difficult and expensive to implement, Anthem has always used 2-prong AC cords to make installation easier. I used the latter; I have only 15A lines in my apartment. I appreciate your efforts in this review, When I first saw Anthem Statement's M1 at the 2011 CEDIA Expo, it was a bolt from the blue. The very poor SNR and high ultra-sonics at 400kHz is inexcusable from a company like Anthem as i own their D2v prepro which is an excellent product IMHO. DSD is not pulse width modulation. It requires more expensive wires on the live side and greater distance between live circuits and isolated circuits and chassis. Used sparingly. Since the output stage runs at seven times lower frequency than DSD one could argue that the actual resolution is that much lower, but even then it’s 12.5 times better than SACD. » Hundreds of computer simulations were used to Anthem is now shipping the Anthem Statement M1 Amplifier. It's a great time to upgrade your home theater system with the largest selection at eBay.com. The M1 has a very sophisticated load monitoring system. Frequency response in the M1 is +/- 0.1 dB from 20 Hz to 20 kHz and -3 dB at 45 kHz, well beyond the limit of audibility. I was not stating that my experience is that "burn in" is always positive but that the vast majority of reports say so. With its eight 65-ampere MOSFETs (260A peak) the M1’s output stage is not fragile and if there is an over-current condition it simply shuts down. Anthem was generous in sending me three M1s so that, during the course of my listening for this review—which is essentially of the M1's performance with two-channel recordings—I could also enjoy some multichannel listening: the front left, center, and right channels would have identical amplification. Watch our information and product videos on YouTube. test and optimize this system so that it is able to handle all ANTHEM STATEMENT M1 The Anthem Signature M1 does a number of things very well indeed. copper pipes within the amp contain a small amount of special If you don't use your ears, is there another way to experience an an audio product? One cord is a three-pronged 20A/240V cable, the other a two-pronged 15A/120V cable, with a two-conductor IEC connection at the amp end. Frequency response is affected due to feedback not accounting for effects of the output filter. As we all know, great for subwoofer amps. The absence of accurate dynamics is so common that it frequently goes unnoticed, but through the M1, music and movies are delivered with breathtaking realism. The M1 can deliver 2 kW continuously when fed by 240V mains and 2 kW for several seconds when fed by a dedicated 120V 15A line. Anthem Statement M1 Amplifier Redefines Class D Category. With the three M1s neatly stacked, their potential to provide three channels of 2000W each into 4 ohms seemed almost a boast—they're smaller and lighter than my regular class-A/B amps, which output 250–300Wpc. The Statement M1 is a state-of-the-art monaural amplifier delivering 1,000 watts into 8 ohms and 2,000 watts into 4 ohms or less with THD remaining under 0.1% from 20 Hz to 20 kHz. Paradigm/Anthem's Rob Sample gives us an inside look (literally) at the 1000 watt M1 Statement mono amplifier. Both LEDs glow blue, and were either on or off throughout my listening, as no problems arose. The Entrée This is not the first review to find problems with the M-1 btw. Rail voltage is stable, unlike in single-ended Class D amps which suffer from rail pumping at low frequency and high power. Anthem M1 Statement Power Amplifier. What I eventually figured out was that the M1 could be a subterranean beast, but only when the music demanded it; it did not, by default, just sound "big" in the way some amplifiers can. There are no A/D or D/A converters in the signal path. listening rooms. That's quite an advantage. The more I learn about how class-D works the more I appreciate how hard it is to get it right. Anthem claims that the M1 is on that cutting edge. When the temperature at one end Because of this, all calls may not be answered. The M1 has no audible effects caused by ‘dead time’ and there is never any overlap to cause electrical problems. The M1 enjoys all of the attributes of our award-winning Statement Class AB amplifiers but through exclusive Anthem technologies, goes far beyond the current capabilities of Class A, Class AB and prior Class D amplifiers in the market. Anthem Statement M1 for sale. Anthem Receivers & Amplifiers for sale. The M1 operates at 0.4 MHz but the time resolution is analog meaning there is no inherent limit on time resolution (though practically speaking it is around 4 nanoseconds). Sealed Ironically, a higher leakage current allowance aggravates hum problems in 3-prong systems. Each has a solitary output PX4 triode valve, originally introduced in 1929, and each amplifier was reputed to deliver around 3.5W. Accurate reproduction of the full dynamic range of the signal. Below it we have the P5 and M1. Great deals on Anthem Amplifiers & Preamps. The first was Class A, the second Class B, the third Class C, etc. The M1s seemed to give greater rein to the Columns' already very lively dynamics, but also gave a bit more depth to the soundstage, a bit more presence to the low voice range, and noticeably more power to the very bottom of the bass. Under normal conditions an amplifier operates at Or does it? The proprietary design employs all of the advantages of a Class D amplifier — high output, high efficiency, compact size — while avoiding the typical Class D limitations such as difficulty driving low-impedance (high-end) speakers, power line contamination, reliability issues and substandard audio quality. The MOSFET gates are well controlled, driven by 9-ampere high-speed MOSFET drivers. performers. Join the conversation with other Anthem fans on Facebook. The traditional high quality five-way binding posts for speaker connection is available on the back of the Statement M1 … Contrary to the bias that exists among high-end enthusiasts and When the noise put on the AC I also heard the new Cyrus MonoX 300 and Bryston 4BSST2 at … That means that you get 1000W into 8-ohms, but 2000W into 4-ohms. Extensive use of power and ground planes ensures vanishingly low levels of noise and inductance to produce an amp that gets out of the way, leaving only the sound of the music. Stability is conditional and several designs can oscillate when under no load, eventually burning out. Emissions are well within EMC Class B requirements. I first listened to the M1s through ADAM Audio's Classic Column MK3 speakers, which I reviewed in August 2012. Class-D amplifiers are to the High End what electric cars are to the auto industry. amplifier’s control system continuously varies the width of the First, the ratio of the M1's power output to its size and weight is remarkable, as are its claimed distortion and noise specs. A 3-prong cord is prone to ground loops if the system includes other 3-prong equipment or cable/satellite TV. While one cannot turn these off, a good listener should have a decent awareness of how they determine what we perceive. From Inside, the M1 sat in a nest of firm foam, and was accompanied by an operating manual, a pair of rack-mount handles, and two power cords. While such generalizations may hold true for other brands of amplifiers, below, Anthem responds to each one as it relates to our M1. Right: Power supply with PFC. same time reduces (by a large amount!) Fast & Free shipping on many items! Tell that to the people on DIYaudio that have been building their own for a few years now. I ran the M1s both ways and could hear no differences. It’s immensely powerful, and goes exceptionally loud without any obvious drama, even when driving a known ‘difficult’ load, while the casework and heatsink fins remain merely warm at all power levels. possible loads. Power Amplifier. Hardly anyone wants to believe that it's only their ears getting used to the sound and not the product "burning in" instead but that is the case 99.99% of the time. More than just a slim, technologically advanced monaural design, the M1 demonstrates that Class D architecture isn't fundamentally flawed, it simply hasn't been implemented well in the past, mainly because it required such a heavy commitment to R&D. The odds are stacked against the Class D amp designer. Do you think this technology will further develop into something truly great, or will class A/AB rule the roost? detection, temperature and DC voltage at the output. Each of the eight 65-amp MOSFETs can handle a peak current of 260 amperes, has low gate charge for fast response, low channel resistance for high efficiency and high speed for high efficiency and low distortion. The The Statement M1 is a state-of-the-art monaural amplifier delivering 1,000 watts into 8 ohms and 2,000 watts into 4 ohms or less with THD remaining under 0.1% from 20 Hz to 20 kHz. The single rack unit Class D mono power amplifier outperforms its class with sophisticated monitoring circuits that maintain proper frequency response, even when powering the heaviest speaker loads using a … This one has the 3D upgrade inbuilt. Class D amps negatively affect dynamic variations in clarity and focus. The Statement M1 is a state-of-the-art monaural amplifier delivering 1,000 watts into 8 ohms and 2,000 watts into 4 ohms or less with THD remaining under 0.1% from 20 Hz to 20 kHz. For all technical support related inquires we encourage you to email support@anthemav.com. This system eliminates the need for fans, allowing multiple M1s Designed and engineered in our advanced research center in Ottawa, Canada, … I have not seen any review with these less poor result. maximum output (the typical working level of an amplifier), our Designed and engineered in our advanced research center in Ottawa, Canada, the M1 … Also a minor typo: a price discrepancy: "costs $3499 each, $7498/pair" the specs section has what appears to be the  correct price though. Unlike other Class D amps, the M1 is perfectly stable into an open circuit and operates perfectly into a short circuit until the current limit is reached. This can result in humming or buzzing through the speakers as well as video noise problems. With several designs high DC potential is present on the outputs. Despite being an audiophile for 15 years, I have never been known as a tube-guy.Other guys at SoundStage! I auditioned a pair of Anthem Statement M1 Mono blocks last year at my local dealer. Its true from what i can see from the measurements that this Class D amp is not ready for prime-time. of a high-end preamplifier, the M1 is a critical listener's dream. Meet the Anthem Statement M1 Amplifier: 1 Kilowatt – 1 Rack Unit. This vapor is then efficiency of conventional amplifiers at full output, but there's To clear up any final misconceptions, the earth ground provided by the third prong is not meant as a shield, it is a safety measure meant to trip breakers should a chassis become live as a result of coming into contact with a live wire. We’re fortunate to have the in-house resources to create such a groundbreaking product and one listen will reveal the truly extraordinary nature of this amplifier. The highest sound quality at all volume levels, flat frequency response into any load, and stable into the most difficult loads. all the same as a digital string of 1s and 0s where all pulses performance but rather the implementation of the technology. almost purely resistive to the AC source. At 1/8th of its The differential output voltage can reach over 90 Vrms but at this level each output terminal is only 45 Vrms with respect to the chassis. With a 2-prong cord, safety is maintained through either double or reinforced insulation. Anthem has aptly named the Statement M1 amplifier as the amplifier as it definitely makes a statement with the technology inside and the amount of power packed inside a slim package. Wyred4sound kind of tried to kick it off, for the masses, but still a bit (niet). Of course, the Anthem solution is different and resolves these problems. The Anthem M1’s bass, however, didn’t bowl me over at first. The M1’s noise floor is virtually inaudible. amplifies) the power of the audio signal to levels suitable for driving speakers. Output stages are fragile. Current flows in short bursts and ends up much higher than it needs to be, limiting available power and increasing the chance of tripping a breaker. Thank you kindly for your review of the Anthem M1 monoblocks. Because the load is balanced, output current goes from one rail to the other without disturbing the ground plane. Anthem announced the Statement M1 single rack unit Class D mono power amplifier offering sophisticated monitoring circuits that maintain proper frequency response, even when powering the heaviest speaker loads using a 120V line.. The resulting pulse-density (not pulse-width) modulated output is claimed to achieve a practical time resolution of 4 nanoseconds (0.000000004s), which is more than an order of magnitude better than that of the DSD coding used on SACD. Anthem says that the M1 has power-factor correction, which ensures that voltage and current drawn from the wall are in-phase. The Statement M1 is a state-of-the-art monaural amplifier delivering 1,000 watts into 8 ohms and 2,000 watts into 4 ohms or less with THD remaining under 0.1% from 20 Hz to 20 kHz. The manual indicates that the M1's continuous high-power output depends on the power supply, but offers a single set of specs without regard for the AC input. For KR to place it on a No-Recommended list is a very big deal in my view. despite its size can deliver 1,000W into 8 ohms and 2,000W The M1 does not use a module. Third, in contrast to most other class-D amps, which are based on a handful of commercially available core circuits or already populated circuit boards, Anthem claims to have created the M1 entirely in-house. The M1's power supply operates at 0.4MHz (400kHz), which is, consequently, its native pulse frequency. But see my Devialet review in the January 2013 issue (due to hit newsstands next week) for one successful approach. Of course, Anthem flowered from the ashes of Sonic Frontiers and continues to produce high-quality amplifiers, although today their image (if not their substance) is associated more with home-theater components than with the (mostly) tubed high-end audio gear Sonic Frontiers made. I have been looking at Class D amps for a tri-amplified system using the DEQX as a base for xover and dsp (not the digital preamp feature). Class B requirements apply to residential use and are far stricter than Class A requirements. In essence, a side-to-side variation in width is analogous to a The truth is that no existing designs have and more efficient than cooling through metal heat sinks alone. This is a significant design achievement. A collection designed exclusively for those who desire the ultimate in audio/video performance. Thank you for your understanding during this time. The Statement M1 is a state-of-the-art monaural amplifier delivering 1,000 watts into 8ohms and 2,000 watts into 4ohms or less with THD remaining under 0.1% from 20Hz to 20kHz. third Class C, etc. only a fraction of its full output capability. Power Output continuous, 20 Hz to 20 kHz, : 0.1% THD+N: 8 Ω: 1000 W: 4 Ω: 2000 W: 3 Ω: 2400 W: 2 Ω >2000 W depending on line voltage regulation: With 120V AC supply the amplifier’s maximum output into impedances 4 Ω and lower, as well as its maximum duration, vary depending on line voltage regulation. The Anthem Statement M1 Amplifier. naturally drawn to the cooler end of the pipe, along the heat It is not the technology that yields fine audio No, the 47lab Gain Card is a Class AB chip amp. It's been around for a while (not sure, did 47's Gain Card first employ this?) been able to reach the Class D's inherent potential for Everyone acknowledges the advantages of the technology in terms of efficiency and ecological benevolence, but so far, neither has captured the souls of aficionados who demand cutting-edge sound regardless of the cost, whether in dollars or degrees. into 4 ohms. Operation is discrete with output MOSFETs mounted on a copper clad PCB, then on a heavy aluminum extrusion with heat pipes. recognized and classified by the IEEE. The M1 also doubles down the power when the load is halved, like good amplifier should. Although more expensive since more MOSFETs are needed, sound quality is vastly improved. The “D” in Class D does not stand for digital. At Anthem, we agree that most Class D amplifiers are poor performers. "On class-D amplifiers, I feel that their promise has mostly yet to be fulfilled.". product of both voltage and current it is produced only when of the pipe rises — the end adjacent to the amplifier's heat The next time you see a corded power tool, look for the double-square symbol. The “D” in Class D does not stand for With an absence of noisy fans and a noise floor well below that Statement P5 amplifier outputs 500W. circuit, the amplifier will be delivering the highest output line. have the same width. sink on the side of the amp’s chassis where it condenses. My Parasound JC1s have been burning in for years and now sound better than reality. I look to use the M1 for my bass drivers moving to tube for mid/trebile in 3 way amplification mode (3 sets of monoblock). An electronic device that increases (i.e. Timing is controlled by high-speed Advanced CMOS Logic gates with 5-nanosecond propagation delay and sub-nanosecond skew. Anthem Statement M1 Power Amplifier. However the M1 uses Class D amplification of a Two Class D amps have high radio-frequency emissions. Secrets September 8, 2011. Setup was uneventful. A 2-prong cord also requires a larger line filter because according to safety standards the line-chassis leakage current limit is ten times lower compared to 3-prong. For example: If the preamplifier uses three prongs it is grounded not only through its power cord but also through any non-optical connections to other 3-prong components. It also means the With the M1, it’s exactly the opposite situation because a linear supply cannot regulate the output voltage of the output stage. performance. very close to its positive or negative peak. Sidebar 3: Measurements I used Stereophile's loan sample of the top-of-the-line Audio Precision SYS2722 system (see www.ap.com and the January 2008 "As We See It") to measure the Anthem Statement M1. A dynamic range compressor is often present to provide soft clipping and this may impair clarity. there a copper wick returns the fluid to the hotter end of the Press. output pulse train in direct relation to the analog input signal. Exceptional efficiency with low heat output. and current cycles enabling continuous output from the power "Ever notice how the effect of burn-in is always positive?". At 4 ohms (which is where high-end speakers hang around) our award-winning Full resolution of all of the sonic subtleties and complexities in the input signal. Indeed, this is the first single-channel amplifier to bear the Anthem logo—and it's class-D to boot. Get the latest news and special announcements on our official Blog. Actually, leaving aside the burn-in question in general, which I find varies from insignifican to significant depending upon the gear, I do not always find it positive. Purely capacitive and very capacitive loads will send the M1 into protection mode, not burn out mode but since no speakers are purely capacitive this will never be an issue. View & download product photos, lifestyle images and logos on Flickr. It all depends on the design. Number of channels is often 2 channels for stereo systems and 5 or 7 channels for multichannel systems. Although it is normally the case, assuming noticeable burn-in, I have encountered several pieces that went from being engaging to too polite. Anthem M1 The highest sound quality at all volume levels, flat frequency response into any load, and stable into the most difficult loads. The setup was pretty much identical to my own - same Cyrus streamer, pre, dac and Vienna Accoustic BBG speakers and I loved them. Its high-speed control loop includes high-speed instrumentation-grade op-amps with 100 MHz unity gain bandwidth, 3000V/µs slew rate, high-speed complementary comparators and 5-nanosecond Advanced CMOS Logic gates. Whether you are running the M1 from a 120V circuit or a 240V I soon learned that the M1 is a 1000W or 2000W (into 8 or 4 ohms) monoblock amplifier that costs $3499 each, $6998/pair. 100A Hall-Effect sensors monitor the output current. During the unprecedented impact of COVID-19 we have reduced both staff and hours of operation. That is one reason why I am convinced that the vast majority of these reports are due to observer adaptation. This heat transfer process is many thousands of times faster In the audio press and across the Internet many generalizations have been made about deficiencies in Class D amplifier design. As good as it gets! first was Class A, the second Class B, the List is a Class AB chip amp to feedback not accounting for of! 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