Legacy Audio Powerbloc4
Best multi-channel amplifier for high-fidelity home theater and biamping setups.
This high-performance amplifier delivers exceptional power and clarity for demanding home theater and music setups. By utilizing an efficient design with independent power supplies for each channel, it ensures clean, high-fidelity sound reproduction without the heat typically associated with traditional amplification.
$3575.00
In stock
at
Destination HiFi
Who it's for
- Space-conscious listeners needing massive power in a compact chassis
- Home theater enthusiasts building complex multi-channel or bi-amplified systems
- Audiophiles driving demanding, low-impedance speakers at high volumes
Who should skip it
- Budget-focused buyers comparing against mass-market multi-channel amplifiers
- Traditionalists preferring the specific warmth of Class A/B designs
- Users seeking all-in-one convenience like streaming or built-in DSP
Performance breakdown
Power Delivery
Massive headroom ensures effortless dynamics even with demanding speaker loads.
Signal Clarity
Ultra-low distortion levels preserve the purity of your source material.
Thermal Efficiency
Class D design runs cool without needing noisy internal cooling fans.
Bass Control
High damping factor keeps low-frequency drivers tight and exceptionally precise.
Connectivity Versatility
Balanced and unbalanced inputs accommodate a wide range of system setups.
Form Factor
Compact, lightweight chassis packs significant power into a minimal footprint.
Key Specs
Channels
4
Power Output
325W/ch @ 8 ohms, 650W/ch @ 4 ohms
Frequency Response
1.5 Hz to 70 kHz
Total Harmonic Distortion (THD)
0.005% at rated output
Dynamic Range
117 dB
Inputs
4 balanced XLR, 4 unbalanced RCA
Outputs
4 pair gold plated five-way binding posts
Damping factor
1,000 < 1kHz
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