Audio/Home Theater PowerBloc2


Incredible Performance in a Small Package... at a Fair Price.

The Legacy Audio Powerbloc2 is a musical reference and studio workhorse dual mono amplifier.

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. 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.

The benefits of multi-amplication are inarguable; lower intermodulaton, greater headroom and freedom from harmful clipping. Yet concerns over cost, bulk and complexity have prevented users from enjoying these sub­stantial advantages. The Powerbloc2 can be used in pairs with Legacy Audio's DSP based processor/crossovers to raise system performance to a new level. They can also be used in pairs to biamp passive loudspeakers.

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 Powerbloc2 achieves high output without bridging and is exceptionally quiet. No transformer hum, fan noise or long waits after power cycling for stabilization.

The Legacy Powerbloc2 provides serious power... for serious listening.

Download the Legacy Powerbloc2 Design Specifications, here.

The Powerbloc is also available in a 4 channel version, the Powerbloc4

Product Reviews Legacy Powerbloc2 Has “No Real Competition, at Anywhere Near This Price.”
Legacy Powerbloc2 “Sounds & Feels Like It Should Cost A Lot More…”
Legacy Powerbloc2 “Delivers Premium Sound Quality to Any System-Your Speakers Will Thank You”
Legacy Powerbloc “The promise of serious power at a fair price is honestly made and fully delivered”
Related Articles Legacy Powerbloc2 is Recommended Product of The Year Award Winner
“Speed & Openness, The Name of the Game” Legacy at AXPONA 2019
Legacy in “Full Force” at First Annual Florida Audio Expo
“The Best Value in High End Audio”- Legacy Powerbloc Amplifier Reviews & Testimonials
“Legacy is Pioneering this Industry” Audioholics Interview with Bill Dudleston
Product Manual Download (6 MB)
Power per side: 325 watts per channel x 2 @ 8 ohms, 650 watts per channel x 2 @ 4 ohms
Inputs: 2 balanced XLR, 2 unbalanced RCA
Outputs: 2 pair gold plated safety approved five-way binding posts
Damping factor: 1,000< 1kHz
Voltage Gain: 27.4 dB
Dynamic Range: 117 dB
Peak Current: 30 amps/channel
THD: 0.005% at rated output
TIM: 0.0045% at rated output
Input Sensitivity: 2.1 Volts to rated power
Dimensions: 3" H x 17" W x 14" D
Unit Weight: 13 lbs
Shipping Dimensions: 7.5" H x 21.75" W x 16" D
Shipping Weight: 17 lbs

Legacy Powerbloc2 Dual Mono Amplifier

Powerbloc2 Top View

The Powerbloc4 placed on top of the Powerbloc2

Powerbloc2 Rear

The Legacy Wavelet & Powerbloc2 Amplifier

Listen to Legacy Legacy Backstage Building a Legacy