RMAF NOTE: We are in the process of setting up manufacturing of the M3 and M4 models for the European market at our Spatial Europe headquarters in Ingolstadt Germany. I will not be back in time to show at RMAF due to the overlap. I may try to walk the show over the weekend if timing works out. I wish everyone a great show. Paul Speltz of AntiCable will be manning our booth downstairs in the Lobby.


New Hologram M4 Turbo   $1695 pr.

The World's Most Popular Brand of Open-baffle Speakers


Product Reviews & Comments                                          

Steve's Audio Blog  M4  -  Best explanation of M4

Steve's Audio Blog M4 -  Followup

AudioHead Newport Show M3 Turbo S - New July 19

AudioCircle Thread M3 Turbo S - Zybar initial comments - New June 27

Home Theater Review Magazine - M3 Turbo S Review - 

Axpona 2016 Show Report - Stereophile

Axpona 2016 Show Report - Part Time Audiophile

Axpona 2016 Show Report - Audiohead

AudioCircle Thread M4  April 15

Digital Audio Review M4  & Factory Tour -  New April 11

AudioCircle Thread  M3 

AudioCircle Thread  M4      

Hologram User Comments                                             

New Record Day  M3 

The Audio Traveler  M3                                                                                                                                                                                               

Stereotimes.com M3                                                                                        

New Record Day M3

Soundstage.com  M1

The Audio Traveler M3

Customer Feedback  Lumina

Dagogo  Lumina