"La PowerBIS Maestro fait admirablement le travail pour lequel elle a été conçue……fait dorénavant partie du système de référence du magazine et nous la recommandons sans hésitation".Magazine Son & Image, novembre-décembre 2008

“The PowerBIS Maestro performs beautifully and is now part of our reference system. We recommend it without hesitation.”
Magazine Son & Image, novembre-décembre 2008



  • 6 or 8 outlets
  • WATTGATE™ Audio Grade 381 EVO AU ®
  • Additional amount of asphalt-base damping material
  • IEC socket for a removable power cord, either on top or at the end of theMAESTRO EVO PowerBIS (To be specified when ordering)
  • Built-in mounting feet at both ends

Designed around 3 main criteria:

  • Super conductivity
  • Mechanical sturdiness for long term use
  • Neutral sounding

Truthfull to the philosophy of choosing the best available material, we have tested many electrical duplex. The WATTGATE™ Audio Grade 381 EVO AU ® receptacle is definitely superior in many points to the renowned “Hospital Grade” and much better adapted to audio & home theater requirements.

BIS Audio PowerBIS Maestro A/C Power Bar + AC20WG A/C Power Cord Review by Novo Press

BIS Audio PowerBIS Maestro A/C Power Bar + AC20WG A/C Power Cord Review by Novo Press

This duplex offers sturdiness, greater heat resistance plus contact stability through:

  • Audio Grade
  • WATTGATE™ three-layer plating process on contacts
  • Ultra heavy-duty triple-wipe contacts
  • Gold plating on terminal clamps, mounting strap, rivets and grounding strip
  • All polycarbonate design
  • Superior ground contact

duplex-audiogradeHigh quality electrical contacts will remain tight. The bypass contact is made of high-conductivity materials for increased contact force and secured connections, reducing heat build-up and insuring uninterrupted flow of power.

In order to get maximum control on mechanical resonances, we line the MAESTRO EVO PowerBIS  with an additional amount of asphalt-base damping material. As a result,vibrations on the electrical contacts and casing will be kept to minimum. Therefore, if you connect a small power supply with a transformer, no vibrations will be transmitted to the power bar.

To prevent the “crackling” phenomenon on the power lines produced for example by household appliances or electrical tools, we’ve added a PARALLEL circuit which does not limit in any way the available amperage or the speed. The internal connections between the IEC plug and the sockets remain perfectly in direct line, without any obstruction.

The Furutech IEC gold plated copper socket on the MAESTRO EVO PowerBIS is tailored to accept the number 10 copper internal wiring we use and improve greatly the performance of the bar compared to the previous model.

You can use any BIS AC cord of your choice on the MAESTRO EVO PowerBIS .  However, top it off with a BIS AC-20WG power cable to benefit from the best optimed performance and maximal protection against RF and EMI.

Through very meticulous tests, we found that this power bar is totally neutral. Therefore, the sonic characteristics of your system, be it the electronics or the cabling, will not be affected.

Those same tests also showed that the MAESTRO EVO PowerBIS transmits the electrical signal as directly as a wall connection. First class quality components, no on/off switch, no pilot lamp, no filter to kill the sonic dynamic.

In order to complete your own audio & home theater installation, MAESTRO EVO PowerBIS duplex are also available separately at your dealer to replace the standard in-wall duplex.

Son & Image Magazine, on optimized PowerBIS

Ted Magazine, Volume 20, No. 5