Statement A2 & A5 – Muscular in character. Musical by nature.

Just like their larger and more powerful siblings, the remarkable A2 and A5 amplifiers are muscular in character and musical by nature. They are multi-talented performers, supplying the power behind physically demanding surround-sound home-theater one moment, then retrieving with remarkable finesse and transparency, the immediacy of a live music performance the next.

So what lies behind the remarkable high-end performance of A-Series amplifiers. The answer is in our commitment to state-of-the-art design. A2 and A5 amplifiers enjoy completely modular construction; highly refined four-layer circuit board topology; a minimum number of parts in the signal path, and those of only the highest quality; eight bipolar output devices per channel; mirror-imaged frequency-response channel matching; hand-matched complementary input devices; massive toroidal power supplies; oversize convection-cooled aluminum heatsinks; and a no-fuse design.

As Anthem™ Statement creations, A2 and A5 amplifiers are fundamentally more revealing, display an even greater degree of musical precision and deliver extraordinary resolution for both music and movies.

Click here for reviews on the A2 and A5 series

A2 & A5 Design and Technology
“Keep it Simple” Design Philosophy “No Fuse” Design
Eight Bipolar Output Devices Per Channel Hand-Matched Complementary Input Devices
Four-Layer Circuit Boards Massive Oversize Power Supply Reservoirs
State-of-the-Art Modular Design Power On/Off Three Ways
Vanishing Noise and Distortion Superior Oversize Output Connections
Remarkable Level of Quiet Oversize Convection-Cooled Aluminum Heatsinks
Ultra-Quiet Toroidal Power Supply Designed and Built in North America
Reference-Quality Input Connection Advanced Load Monitoring (ALM™)


“Keep it Simple” Design Philosophy:
The Proof is in the Purity of Sound

While all parts are of the finest quality and tolerance, Anthem™ Statement designers use the fewest possible number of parts in the signal path to maintain the integrity of the sound. A2 and A5 amplifiers reveal a profound sense of musical purity, transparency and naturalness.
 
 

Eight Bipolar Output Devices Per Channel

Solid-state amplifiers get their power from the output devices used in the amplification stage—the greater the number of devices per channel, the greater the available high-current power for the crescendos in music or the thrills, thunder and explosions in movies. Performance is simply more effortless. It also means that the amplifiers run cooler, making them more reliable.

A2 and A5 amplifiers each have eight bipolar output devices per channel—that’s 40 devices in the A5 alone—ensuring tremendous current reserves and outstanding reliability.
 
 

Four-Layer Circuit Boards

Our hand-designed four-layer FR-4 glass-epoxy circuit boards with plated through-holes makes extensive use of groundplanes to ensure excellent separation between amplifier channels. The result is exceptionally low noise and low crosstalk between channels, as well as between inputs. This multilayered design also offers increased protection from electrostatic discharge.
 
 

State-of-the-Art Modular Design

A2 and A5 amplifiers reflect the benefit of a common modular design enhanced by our highly refined amplifier circuit topology. Each amplifier channel is self-contained on its own board and heatsink. In the rare event that servicing is required, it can be done quickly and easily by a qualified technician, minimizing the down time of your system.
 
 

Vanishing Noise and Distortion

Transformer-induced noise at the bass frequencies of 60 Hz, 120 Hz, and 180 Hz has effectively been eliminated. As a result, A2 and A5 amplifiers boast vanishing noise and remarkably low levels of Total Harmonic Distortion. The reproduction of subtle harmonic structures in each of these amplifiers reveals extraordinary spatial ambience and soundstage dimension.

Remarkable Level of Quiet

Signal-to-noise ratio in the A2 and A5 amplifiers is 120 dB. Music and movie soundtracks simply appear out of dead silence, allowing you to become lost in the emotion of the original performance.
 
 

Ultra-Quiet Toroidal Power Supply

Thanks to massive, conservatively rated toroidal power supplies designed with high rail voltages, A2 and A5 multichannel amplifiers provide ultra-quiet performance. Transformers are shaped to minimize stray electromagnetic radiation and tuned to minimize hum.
 
 

Reference-Quality Input Connection

Gold-plated female RCA jacks on the A2 and A5 provide a high-quality input connection. True-Balanced™ XLR connections ensure the lowest level of noise and hum possible.

Our unique auto-sensing circuit means no switches. Just plug in either the RCA or XLR connector and our auto-sensing circuit will automatically select the right input.
 
 

“No Fuse” Design

By eliminating fuses in the DC rails, A2 and A5 amplifiers are Direct-Connected™ to the power supply capacitor bank. This keeps output impedance remarkably low while making more power available to the amplifier and ultimately to the speakers. Even when the amplifiers are driving lower- or complex-impedance loads, the result is audibly superior sonic performance. If an output short circuit does occur, only the AC line breaker will trip—there are no fuses to replace.

The standby low-power supply is protected by self-resetting Positive Temperature Coefficent thermistors (PTCs). The inconvenience of replacing fuses is avoided and amplifier circuitry remains well protected. Once the condition that tripped the PTC disappears, the circuit restores itself automatically and the amplifier becomes fully functional again. Anthem™ Statement engineers incorporated AC line breakers where they can be easily reset. And since the breakers are completely outside of the signal path, they do not compromise sonic integrity.

A2 and A5 amplifiers are incredibly stable into difficult, low-impedance speaker loads, making them consummately reliable performers.
 
 

Hand-Matched Complementary Input Devices

Heat shrink tubing applied around each critical pair of hand-matched complementary input devices ensures superior thermal tracking and lower voltage offset and distortion.


Massive Oversize Power Supply Reservoirs

To store all of the energy required for the immense dynamic bursts of various special effects in a movie or taxing crescendos in music, large banks of capacitors are required. A2 and A5 amplifiers employ 30,000 micro farads (µF) of capacitance per channel. (That’s 150,000 µF in the A5!) With so many joules of power in reserve these amplifiers are able to instantly and effortlessly deliver full bursts of power.
 
 

Power On/Off Three Ways

A2 and A5 amplifiers can be powered On/Off three ways: manually, with the On/Off switch on the front panel; remotely, via the 12-volt trigger input on the rear; or automatically, with our patented Auto-On/Off circuit—an incoming audio signal immediately switches it on, and approximately 20 minutes after the audio signal ends, it simply switches off.
 
 

Superior Oversize Output Connections

Anthem™ Statement custom-designed, oversize gold-plated binding posts ensure full power delivery at all times. They are easy to use and facilitate large speaker cable connectors.
 
 

Oversize Convection-Cooled Aluminum Heatsinks

Oversize convection-cooled custom heatsinks with serrated fins ensure that A2 and A5 amplifiers dissipate the heat generated by their higher power levels quickly and efficiently. Computer-designed and modeled to maximize contact area for exceptional heat transfer, these amplifiers run cooler for greater reliability without the need for a noise-inducing fan.
 
 

Designed and Built in North America

Elegant fine-grain brushed aluminum cover and extruded aluminum handles. The heavy-gauge 14-awg steel chassis adds requisite high-end weight and authority.

Superior-quality Blue LEDs add an elegant finishing touch to the high-end elegance of these multichannel amplifiers.

High-end products typically offer the freedom to use a variety of after-market power cords offered by specialty cable manufacturers. A2 and A5 amplifiers include IEC detachable AC female sockets and high-power, high-quality 14-awg AC cords.

Both amplifiers can be ordered with optional rack-mount handles. See your Anthem™ Statement Dealer for more information.
 
 

Advanced Load Monitoring (ALM™)

Anthem™ Statement P2 and P5 amplifiers are designed to perform flawlessly—offering stunning musicality, tonal neutrality and incredible dynamics while driving any speaker load reliably under real-world conditions! The power supply is conservatively rated and the amplifiers run cool for greater reliability, but we didn’t stop there.

These amplifiers feature our ALM™ (Advanced Load Monitoring) circuitry which protects sensitive output devices by constantly monitoring temperature, current and voltage to ensure optimum long-term performance. ALM™ is totally non-invasive—it is not in the signal path and only engages in the most extreme circumstances to protect the amplifier from damage by maintaining the safe operating area of the output devices. Buyer beware however! Not all amplifier manufacturers have sophisticated load-monitoring provisions. Many have saved the added cost, leaving their output devices unprotected, choosing instead to use the amplifier’s output devices as “fuses.” At Anthem/Sonic Frontiers, ALM™ is just one of the ways in which our products provide owners with years of reliable service.
 
 

 

Return to Anthem Products Return to Top