Following the hugely successful TB2i, FB1i and PB1i signature series models PMC have been inundated with requests for further additions to the i series signature range. We are therefore proud to announce the release the OB1i signature. This limited edition signature model has all the cosmetic enhancements of the current signatures with fine adjustments of the already exemplary 24db per octave crossover network.

The OB1i - SIG displays all the ultra high definition and finesse of the current i series design with added refinement and transparency in the mid, vocal range. The key to this improvement is subtle tuning to the crossover network which has been carried out Peter Thomas himself - designer and founder of PMC.

Such is the confidence in build quality and engineering excellence the warranty period has been doubled to a lengthy 20 year period, which is something enjoyed by all the signature series. The beautifully handcrafted British cabinets are finished in the distinct and rare rose palissandre veneer. A chic enhancement for any modern or traditional interior.

The OB1i signature utilises the meticulously engineered six and half inch bass unit, the professionally proven 75mm soft dome and the precision built SOLONEX™ domed tweeter which results in a vast, vivid audio picture and deep rich bass which can be experienced throughout the room. The OB1i signature’s substantial ATL™ (Advanced Transmission Line) provides even greater bass extension and control than its smaller siblings and therefore has the ability to fill a larger listening room with ease.

Customer Reviews

"Outstanding, I am upgrading from Fb1i's and am very impressed with that Ob's. I still love the Fb1i's but I think I love the Ob1i signatures more! "
Mr P, Makawao


ATL Tecnology


  • Greater detail & more natural
  • A full, rich sound at any volume level
  • Deeper bass from a smaller cabinet

The source of PMC’s legendary natural, realistic sound is the Advanced Transmission Line (ATL) bass-loading technology, professionally proven all around the world.

ATL uses energy generated by the bass unit in a much more intelligent, efficient way than speaker designs based on ported or sealed boxes.

Find out more here

ATL Tecnology
LaminairTM Tecnology

Our Laminair™ aerodynamic vent technology takes audio performance to the next level.... find out more

LaminairTM Tecnology
Get access to the most powerful cinema design tool available. The Cedia Designer (TCD) is a cloud-based design tool. It allows home cinema professionals to design Any dedicated cinema or media room in minutes using any one of PMC’s products.