P801 Mono-Block Power Amplifier

SKU: P801-1-1

AUD $3,500.00

The P801 is March Audios new flagship mono block power amplifier.  Based on the new Purifi 1ET9040BA module, this simply elegant product is milled from solid aluminium with a tough anodized treatment. Exceptional fit, finish and build quality.

Class leading technical and subjective audio performance.

TEMPORARTY PAGE.  WILL BE UPDATED VERY SOON.

The P801 is March Audios flagship mono block power amplifier.  Based on the new Purifi 1ET9040BA module, this simply elegant product is milled from solid aluminium with a tough anodized treatment. Exceptional fit, finish and build quality.

Featuring the stunning Purifi class D technology developed by Bruno Putzeys, the P801 delivers extraordinary low noise and distortion with sublime subjective audio quality.  Exceptionally clean and neutral sound with deep tight bass and extended sweet high frequencies.  It delicately reveals the smallest of details in the recording.

PURIFI’s continuing research into nonlinear control theory has produced the first mathematically exact large signal model of self-oscillating amplifier controllers. This breakthrough allows complete optimization of the feedback circuit and improves performance by at least an order of magnitude over existing implementations. The amplifier module further incorporates a comprehensive protection system that makes it tremendously robust.

The class leading technical performance delivers a neutral but captivating musical sound that will suit the finest partnering equipment. Fully stable with loads right down to zero ohms, the massive 40 amp current and power output capability ensuring tremendous grip and drive even with the most insensitive and challenging of speaker loads.

The P801 amplifier can deliver up to 1500 Watts into 2 ohms, 1400 watts at an incredibly low 0.1% distortion.

9040 module

A new March Audio designed “ULTRA BUFFER” differential (balanced) input buffer has been designed to extract the maximum performance from the Purifi module. The input buffer minimises noise, eliminate ground loops and provides the extra gain required to drive the power amp module. Featuring Neutrik XLR input connectors, 4 layer circuit board, OPA1612 op amps and very low noise LT3045/94 voltage regulators.  Input gain can be selected via rear panel switch for optimal signal to noise ratio depending upon whether your source is RCA or XLR. The balanced input is fully compatible with RCA sources by using an adaptor cable.  Note that amps which fit RCA connectors on the chassis do not solve the ground loop problem inherent to RCA.

The power supply is a new design that has 2 quadrant operation and active synchronous rectification. This means the output voltage stays much more stable and won’t suffer from bus pumping. The PSU can also output more than 1500 watts which means it will power the Purifi 9040 to its full 2 ohm load capability.

Other manufacturers still use the outdated Hypex supplies which will only drive the Purifi 9040 module to around 1100 watts short term.

The ETI Research Kryo speaker posts are manufactured from Tellurium Copper with Silver plating for superior conductivity and long lasting durability.

The mono block design has the advantage of eliminating all forms of crosstalk.  The P801 can also be placed next to the speaker to minimise speaker cable length.

Hand built and individually tested, the P801 is backed up with a 5 year warranty.

TECHNICAL SPECIFICATIONS

  • ​Power Output (1% THD)
    • 2 Ohms – 1500 W rms​
    • 4 Ohms – 800 W rms
    • 8 Ohms – 400 W rms
  • ​Power Output (0.1% THD)
    • 2 Ohms – 1400 W rms​
    • 4 Ohms – 750 W rms
    • 8 Ohms – 375 W rms
  • Current Output – 40 Amps
  • THD + N – 0.0008% / -122dB @ 100 Watts, 4 Ohms, 20Hz-20kHz
  • THD + N – 0.0015% / -116dB @ 5 Watts, 4 Ohms, 20Hz-20kHz
  • Output Noise – 7uV rms 20Hz to 20kHz
  • Signal To Noise Ratio – 140dB(A)
  • Output Impedance – 0.0003 Ohms
  • Damping Factor (8 ohms) – 26600
  • Input Impedance 20 kOhms
  • Frequency Response –
    • 2Hz to 20kHz (+0/-0.05dB)
    • 2Hz to 82kHz (+0/-3dB)
  • Voltage Gain – Selectable via rear panel switch
      • 29.0dB – Best suited for 2 volt single ended RCA sources
      • 23.0dB – Best suited for 4 volt balanced XLR sources
  • ETI Research Kryo  Tellurium Copper with Silver plating speaker binding posts
  • 12 volt trigger input
  • Standard IEC mains input connector – universal voltage with automatic setting 100 volts to 240 Volts AC
  • Power consumption
    • Stb 0.2 Watts
    • Max 1600 Watts
  • Dimensions  W 255mm x  D 345 x H 85mm (including speaker posts and feet)
  • Supplied with country specific power lead and 2 Gb high quality metal USB drive containing manual
  • Product specifications are subject to change without notice

TEMPORARTY PAGE.  WILL BE UPDATED VERY SOON.

The P801 is March Audios flagship mono block power amplifier.  Based on the new Purifi 1ET9040BA module, this simply elegant product is milled from solid aluminium with a tough anodized treatment. Exceptional fit, finish and build quality.

Featuring the stunning Purifi class D technology developed by Bruno Putzeys, the P801 delivers extraordinary low noise and distortion with sublime subjective audio quality.  Exceptionally clean and neutral sound with deep tight bass and extended sweet high frequencies.  It delicately reveals the smallest of details in the recording.

PURIFI’s continuing research into nonlinear control theory has produced the first mathematically exact large signal model of self-oscillating amplifier controllers. This breakthrough allows complete optimization of the feedback circuit and improves performance by at least an order of magnitude over existing implementations. The amplifier module further incorporates a comprehensive protection system that makes it tremendously robust.

The class leading technical performance delivers a neutral but captivating musical sound that will suit the finest partnering equipment. Fully stable with loads right down to zero ohms, the massive 40 amp current and power output capability ensuring tremendous grip and drive even with the most insensitive and challenging of speaker loads.

The P801 amplifier can deliver up to 1500 Watts into 2 ohms, 1400 watts at an incredibly low 0.1% distortion.

9040 module

A new March Audio designed “ULTRA BUFFER” differential (balanced) input buffer has been designed to extract the maximum performance from the Purifi module. The input buffer minimises noise, eliminate ground loops and provides the extra gain required to drive the power amp module. Featuring Neutrik XLR input connectors, 4 layer circuit board, OPA1612 op amps and very low noise LT3045/94 voltage regulators.  Input gain can be selected via rear panel switch for optimal signal to noise ratio depending upon whether your source is RCA or XLR. The balanced input is fully compatible with RCA sources by using an adaptor cable.  Note that amps which fit RCA connectors on the chassis do not solve the ground loop problem inherent to RCA.

The power supply is a new design that has 2 quadrant operation and active synchronous rectification. This means the output voltage stays much more stable and won’t suffer from bus pumping. The PSU can also output more than 1500 watts which means it will power the Purifi 9040 to its full 2 ohm load capability.

Other manufacturers still use the outdated Hypex supplies which will only drive the Purifi 9040 module to around 1100 watts short term.

The ETI Research Kryo speaker posts are manufactured from Tellurium Copper with Silver plating for superior conductivity and long lasting durability.

The mono block design has the advantage of eliminating all forms of crosstalk.  The P801 can also be placed next to the speaker to minimise speaker cable length.

Hand built and individually tested, the P801 is backed up with a 5 year warranty.