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Anthem STR Power Amplifier

 

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Found it cheaper? Click here. SKU: ANTSTRP
Ex VAT: 4582.5
£5,499.00
The power amplifier of Anthem's new STR range, it has a dual mono design, massive toroidal transformers max 800W power and 16 bipolar output devices per channel.

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Condition:Brand new in original retail packaging

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Features

Warranty length 3 Years
Brand Anthem

Tech Specs

Amplifier
- Power Out: 8/4/2Ω, (400/600/800W)
- THD (400W) 0.0007%/0.004% (1/20kHz)
- IMD (300W): ITU-R (19+20kHz) 0.0006%
- SMPTE: (60+7k Hz) 0.0016%
- SNR (IEC-A, ref 400W): 121dB
- Freq Response: (20Hz - 20kHz) ±0.1dB
- Bandwidth (-3dB @400W, 8Ω): 91kHz
- Slew Rate: 30 V/μs
- Damping Factor: (20Hz - 1kHz) 360
- Ch Separation: 101/98dB (100/10k Hz)
- In Impedance: 10/15kΩ (RCA/XLR)
- In Sensitivity (400W, 8Ω): 2.1Vrms
- Voltage Gain: 29dB

 

General
- Power Required: 220-240/120V (50/60Hz)
- Standby Consumption: 310mW
- Idle Consumption: 65W
- Typical Playback: 150W - 300W
- High Playback: 600W - 1100W
- Dimensions (HWD): 172 x 432 x 470mm
- Weight: 27.3kg (60lbs)

Product Description

Anthem STR Power Amplifier is the core of a world-class 2-channel sound system delivering massive power generation, with audiophile-quality output in a smartly built component. The amplifier is part of Anthem's premium STR Series, the leader in audio power and control.

Two-Channel Revolution

The . The STR Power Amplifier delivers 400 Watts/channel into 8 ohms with both channels driven, a massive 600 Watts/channel into 4 ohms (both channels) and 800W in 2 ohms, for true no-holds-barred performance.

It uses two colossal transformers and multiple high-current output devices so the most subtle details and dynamic peaks are handled equally well. Outside, its beautifully designed cosmetics, including a 7" graphic control display and secure, highly conductive audiophile connectors provide a perfect match to the STR Preamplifier.

Cascoded Feedback Stage

The STR Power Amplifier benefits from our proprietary input topology—a unique departure from the classic differential input stage. Eight low-noise bipolar input devices are configured in a complementary active-load cascoded feedback arrangement for reduced distortion, exceptionally linear response and superior bandwidth. Transistors in critical stages are hand-selected and matched for lowest possible distortion.

16 Bipolar Output Devices

Anthem engineers incorporated sixteen bipolar output devices per channel, resulting in peak production that is effortless and instantaneous, cinching even the most challenging material. The use of multiple bipolar output devices in class AB configuration also dramatically reduces distortion while ensuring extreme linearity, extensive bandwidth, and stress-free reliability. Experience the immense dynamics of up to 800 clean watts delivered into demanding 2-ohm loads, or 400W into 8 ohms/600W into 4 ohms continuously and with both channels driven.

Toroidal Transformers

Conservatively rated, in a low-profile design shaped to minimize hum, the low-impedance toroidal power transformers — one for each channel — make no sacrifices when it comes to delivering a continuous supply of pure, clean, low noise power.

As well, both the power supply impedance and internal cabling inductance are minimized to deliver a clear path for maximum power. The amplifier channels are thus able to deliver stable, continuous power at maximum output without affecting one another, even when driving the lowest impedances. While some amplifiers oscillate or run out of power when driving lower impedance loads, the STR Power Amplifier remains perfectly stable under all conditions.

No Rail Fuses

A sequence-controlled soft turn-on significantly reduces power line transients and in-rush current during startup, thereby preventing accidental tripping of circuit breakers. The amplifier sections are Direct Connected to the power supply capacitor bank. This keeps output impedance remarkably low while making more power available to the amplifier. Even when driving lower or complex impedance loads, the result is audibly superior performance.

Power On/Off Options

In addition to the traditional options for power-on, the STR Power Amplifier allows trigger mode and audio signal sensing to be combined so you would never need to think about turning the amplifier on or off manually. This can be useful when using a preamp with Home Theater Bypass mode together with a surround sound processor in the same system.

Advanced Load Monitoring

Exclusive ALM technology monitors internal temperature, current and voltage to ensure safe and uninterrupted long-term operation. ALM is not in the signal path, so it never gets in the way. Instead, ALM engages instantly, but only in the most extreme circumstances, to protect your amplifier and speakers from damage, while lowering the chance of a line fuse blowing during an over-current condition. The front panel display confirms status at all times.

Hand-Built Quality Components

Anthem STR Power Amplifiers are designed, engineered, and Crafted in Canada. From the idea stage to the final manufacturing specs, Anthem has complete control over the whole intricate process taking pride in this personal attention to detail and use only the highest quality components, many designed and engineered in-house, in each new STR Power Amplifier we hand-build for your enjoyment.

Audiophile Binding Posts

Big power demands big connections, and custom-designed oversized five-way binding posts give you the flexibility you need for even large-gauge bare-wire connections. Insulated, non-conductive, colour-coded jackets make easy, fast, and solid connections with no interference or ghosting.

 

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