Legacy Audio Powerbloc4 Four Channel Power Amplifier

Brand: Legacy Audio | SKU: Powerbloc4 | UPC:

Price
$3,575
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Legacy Audio Powerbloc4 Four Channel Power Amplifier - Safe and Sound HQ

Legacy Audio Powerbloc4 Four Channel Power Amplifier

Price
$3,575

The Legacy Powerbloc4 is the perfect option for bi-amping speakers and high performance surround sound applications. Audiophiles will appreciate the detail and resolution from the ultra-wide 1.5 Hz to 70 kHz bandwidth. Professionals will love the abundance of effort­less power.

Incredible performance in a small package...at a fair price.

Characterized by a solid and taut low end with fully developed shimmer in the top extremes, Powerbloc2 is one of the most versatile refer­ence grade amplifiers ever. Now, the Powerbloc4 provides the same performance across four channels! The Powerbloc4 hosts a pair of 30 amp power supplies, each powering two channels.

The benefits of multi-amplification are inarguable: lower intermodulation, greater headroom and freedom from harmful clipping. Yet concerns over cost, bulk and complexity have prevented users from enjoying these sub­stantial advantages. The Powerbloc4 can be used to bi-amp passive speakers alongside Legacy Audio's DSP based processor/crossovers to raise system performance to a new level. They can also be used in high performance theater applications to power center and surround channels.

Numerous refinements to class D topologies in recent years have resulted in improvements that not only match the neutrality of other high end designs, but actually exceed typical performance parameters in several ways:

    • High damping factor
    • Low output impedance
    • Wide bandwidth
    • Huge dynamic range

    Stable into low impedances, the Powerbloc4 achieves high output without bridging and is exceptionally quiet. No transformer hum, fan noise or long waits after power cycling for stabilization. Extremely stable even when driven hard, the ultra-efficient Powerbloc amps feature short circuit protection, thermal sensing and 12VDC triggering. Inputs are premium hand soldered XLR balanced and gold-plated RCA inputs, as found only on the finest gear.

    The Legacy Powerbloc4 provides configuration flexibility with four channels of serious power... for serious listening.

    Brand Legacy Audio
    Model Powerbloc4
    Number of Channels 4
    Power Output 4 Ohm (Watts) 650
    Power Output 8 Ohm (Watts) 325
    RCA/XLR Inputs 4 / 4
    Amplifier Class Class D
    Damping Factor 1000
    Dimensions (H x W x D) 3" x 17" x 14"
    Weight (lbs) 15
    Warranty 3 Years

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    Price
    $3,575.00
    $6,050.00
    $8,700.00
    $1,189.99
    $999.99
    Rating
    1
    1
    Brand
    Legacy Audio
    Legacy Audio
    Legacy Audio
    Musical Fidelity
    Arcam
    Number of Channels
    4
    4
    4
    4
    4
    Power Output at 4 Ohms (Watts)
    650
    660
    660
    175
    70
    Power Output at 8 Ohms (Watts)
    325
    610
    610
    90
    50
    Bridgeable Power Output (Watts)
    250 @ 4 Ohms, 180 @ 8 Ohms (2 Channel)
    RCA/XLR Inputs
    4 / 4
    1 / 1
    1 / 1
    4 / 4
    4 / 0
    Total Harmonic Distortion
    0.003% + N
    0.2%
    Damping Factor
    1000
    750
    750
    > 300
    Signal to Noise Ratio (dB)
    105
    106
    Dimensions H x W x D (Inches)
    3" x 17" x 14"
    5.8" x 17.5" x 15.6"
    5.8" x 17.5" x 15.6"
    4.33" x 17.1" x 17.1"
    4.13" x 17.0" x 12.8"
    Weight (lbs)
    15
    30
    38
    47.4
    22
    Warranty
    3 Years
    3 Years
    3 Years
    5 Years
    5 Years