Product Spotlight: Procella Audio P28 L/C/R Speaker

Application: Extremely High-Output Speaker for Medium to Large Rooms and Dedicated Theaters

  • Maximum dynamic range and SPL from a single enclosure loudspeaker
  • 128dB baffle wall output – 8 meter 105 dB THX reference level
  • Same components as the P8 with dual 8″ woofers
  • No DSP required – needs one amp channel only


With output levels equivalent to the reference standard P815, but in a much more compact package, don’t overlook the P28 as an extremely high- performance L/C/R option. The P28 is the mid and high frequency module from the massive P860, and it is now available separately. Using the same pro audio driver components as the P8, it doubles up on 8″ woofers in a D’Appolito configuration, delivering far more impact and output, and reaching a maximum output of 128 dB when baffle- wall mounted!

The P28 is designed to match to a Procella subwoofer at the standard home THX crossover of 80Hz, making for a more affordable solution that does not require DSP or an additional amplifier channel. And like all Procella models, its cabinet depth is quite shallow at just 7.1 inches/180mm.

When you need maximum dynamics with studio reference audio quality, the P28 delivers in a smaller and more cost- effective package than the P815 and P860.

Nytt ljudtransparant dukmaterial från Dreamscreen












The DreamScreen UltraHD V5 is our 5. generation sound-transparent fabric. Throughout the last 8 years we have tested, prototyped, produced and sold a number of various technical solutions.


The ultraHD V5 is sold in packages of 4×1,6m of fabric and includes attachment-modules that is made to fit our V4 and V5 frames. However, the attachment-modules are easily adoptable also for DIY-projects where the module is glued either to a wood-stud or an existing aluminum frame.


V1: Dual layer vinyl weave (white) + knitted (grey). Glued. Single reflecting layer.

V2: Dual layer knitted fabric, grey + white. Glued. Single reflecting layer.

V3: Single layer knitted fabric grey only. Single reflecting layer.

V4: Single to three-layered separate layers fabric / synthetic weave. Tensioned, not glued. Single reflecting front layer.


-V5-: Three layered weave + knit. Glued. Multiple reflected layers. PATENT PENDING.



Our technology

Our fifth generation fabric utilizes the research and development gathered in V1 through V4, where for our 5. generation we found that utilizing several layers that actually reflects in combination rather than one front layer reflecting the image alone would potentially increase both image quality and sound transparency. Please refer to the attachment 1,”Technincal Drawing”. Please refer to Fig. 2B and 3 for our new solution and the present solution depicted in figure 2. This design is patent pending and will be patented in all vital markets, including Norway, EU, USA, Japan and China. Utilizing several reflective layers, we have been able to combine a very fine, weaved front surface with two additional knitted layers, one white or grey (same color as front layer), as well as a black backing layer. The result is a sharp, dynamic, high-resolution image free from common artifacts such as moiré and visible structure even from very short seating distances (2m or less). The sound transparency is also dramatically improved compared to our previous generations using the multi-layered method. Please refer to the following initial measurements, basically speaking for themselves. These measurements include all three layers (front, middle and black backing-layer).






Fig. 1:  200 – projector : 400 – seating : 100 – sound transparent projection screen : 300 – speakers Fig. 2: 100 – regular sound transparent fabric : 210 – projected beam : 220 – reflected beam : 150 – black backing : 105 – front fabric Fig. 2b: 100 – V5 sound transparent fabric : 210 – projected beam : 220 – reflected beam : 110, 120 and 130 – front fabric : 150 – black backing Fig 3: 210 – projected beam : 220, 230 and 240 – reflected beam : 110-150 as fig. 2b



Comments: initial measurements include all three layers of the V5-fabric (including the black backing). Initial measurements indicate class-leading acoustic performance with a max drop of about 1,5dB and an average drop of about 1dB. Measurements were made in a noise-controlled environment by a professional HAA certified and equipped calibrator.