ACCUSTIC ARTS Amp IV
Best reference-grade power amplifier for discerning audiophiles seeking pure, emotional sound.
Experience the pinnacle of audio performance with the ACCUSTIC ARTS Amp IV, a reference-class, dual-mono high-performance power amplifier. This fifth-generation masterpiece is handcrafted in Germany, embodying meticulous attention to detail and a rigorous testing process. It features separate power supplies for each channel, ensuring pristine signal purity and exceptional power delivery. Built with premium materials, the Amp IV delivers precise, analog sound performance, making it an ideal choice for audiophiles seeking an emotionally engaging and accurate listening experience.
$27241.00
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Owner Satisfaction
4.8
/ 5
Category Rank
277
/ 2553
#277 in Power Amplifiers
Price vs Category Average
+230%
Above average
Type
Power Amplifier
/ Power Amplifier
Who it's for
- Audiophiles driving demanding, power-hungry loudspeaker loads
- Collectors prioritizing long-term reliability and German craftsmanship
- Listeners seeking pure, uncolored reproduction of their music
Who should skip it
- Owners with limited rack space or ventilation constraints
- Users with entry-level components or mismatched system cabling
- Mainstream enthusiasts working within a modest budget
Performance breakdown
Power Delivery
Massive current reserves effortlessly drive even the most demanding speaker loads.
Signal Purity
Dual-mono architecture ensures complete channel separation for a pristine soundstage.
Build Integrity
German craftsmanship results in a tank-like chassis built for lifetime reliability.
Dynamic Range
Exceptional headroom captures every nuance from whisper-quiet passages to explosive crescendos.
Connectivity Versatility
Balanced and unbalanced inputs provide seamless integration into high-end audio systems.
Harmonic Precision
Ultra-low distortion levels deliver a transparent and highly accurate analog performance.
Key Specs
Type
Power Amplifier
Power Output (8 Ohms)
max. 2 x 400 Watt
Power Output (4 Ohms)
max. 2 x 620 Watt
Power Output (2 Ohms)
max. 2 x 810 Watt
Filter Capacity
approx. 160,000 µF
Frequency Response
10 Hz – 50,000 Hz (+0/-0.5 dB)
THD+N
0.003% at 4 Ω load at 1 kHz and 10 Watt
Dimensions (H x W x D)
340 x 470 x 440 mm
Features
- Extremely powerful dual-mono architecture
- Separate power supply for each channel
- Fifth generation of a test-winning design
- Handcrafted with meticulous attention to detail
- Premium gold-plated contacts
- Balanced and unbalanced inputs
- High-current speaker connections
- Reference-class performance
What customers say
Owners consistently praise the ACCUSTIC ARTS Amp IV for its reference grade audio performance, focusing on its remarkable neutrality and transparency. The amplifier effortlessly manages complex music and demanding speakers, delivering startlingly realistic dynamics even at high volumes. Reviewers frequently note the expansive, deeply layered soundstage that allows for precise instrument placement. Beyond the sound, the German engineering and meticulous build quality inspire confidence in its long term reliability. While positioned at a premium price, most users feel the investment is justified by the flawless execution and the sense of achieving an endgame component. The core satisfaction comes from its ability to present music with uncolored authority and precision.
Know before you buy
The dual-mono design means each channel has its own dedicated power supply. This prevents interference between channels, resulting in better channel separation, a wider soundstage, and cleaner, more precise audio reproduction.
Yes, the Amp IV is designed to handle demanding loads. It is stable down to 2 Ohms and can deliver up to 810 watts per channel at that impedance, making it capable of driving almost any high-end speaker on the market.
Yes, it features both 2 x XLR balanced inputs and 2 x RCA unbalanced inputs. This flexibility allows you to integrate it easily into a variety of high-end audio setups.
The Amp IV is a substantial piece of equipment measuring 470 x 340 x 440 mm and weighing approximately 44 kg. You will need a sturdy, well-ventilated rack or platform that can support its significant weight and size.
The large filter capacity acts as a massive energy reservoir for the amplifier. It ensures that the power supply can provide instantaneous current during complex musical passages, maintaining tight control over your speakers even at high volumes.
Absolutely. With its low THD+N of 0.003% and high crosstalk attenuation, the Amp IV is engineered specifically for reference-class performance where accuracy, transparency, and emotional engagement are the priorities.
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$27241