LED Wall - minimum viewing distance, a quick calculator
We get a lot of questions about how to properly calculate the minimum viewing distance for LED video walls of specific sizes. Here's an easy calculator.
Take the video wall pixel pitch in millimeters, multiply by 3 and add 10%.
For example, we'll use a very common 3.91mm pixel pitch wall panel. 3.91 x 3 = 11.73 + 10% is 12.9'.
If you view the wall at any closer than about 13', the picture will appear to be very grainy. The reason for this is that LED wall panels have relative low native resolution (a half-meter panel with 3.91 pixel pitch uses just 128x128 pixels), and it takes several individual panels to create a presentation display like you'd see in an auditorium or church. A 4x7 grid of these panels will create an 80x139" display (about the same size as a 12' projection screen). That display will have a native resolution of 896x512 pixels.
I hope that helps you understand a bit more about minimum viewing distance. If you have questions about LED video walls and whether they're a good fit for your application, please call us at 800-747-7301.
FCC Auction - more news on wireless microphones of the future.
The FCC has just completed another round of auctions, selling off more of the wireless spectrum that we use for wireless microphones. The short story is that your wireless microphones that operate between 617-698MHz will be phased out at some point starting after 39 months from today. And you will have to replace them.
In 2010, we went through this with you and our goal is to keep you as prepared as possible for what comes next. So here is some news from the Shure website, with a closing paragraph from us.
January-February 2017 -- Forward Auction Stage 4 - Wireless telecom companies bid on the spectrum. Stage 4 of the forward auction has raised enough money to meet the minimum requirements to be declared successful. Thus, we now know that 84 MHz, from 614 MHz through 698 MHz, of spectrum will be reallocated. Stage 4 of the forward auction raised $19.63 billion.
How will the Auction affect my wireless systems?
This never happens - Bose F1 and L1 - 15% off.
Twice a year, Bose allows us to offer the F1 and L1 series speakers at 10% off normal prices. Now through March 31, save 15%. A 15% discount (or more) on Bose F1 and L1 series has never happened before, and no one can say whether it will happen again.
This may not sound like a big deal, but Bose actually tells its dealers what it can charge for these products. We "acquiesce" in order to be permitted to sell the product at all.
Take this opportunity to save over $720 on a package of 2 each F1 812 and F1 Subwoofer powered speakers. The system of two F1 812 powered and two F1 Subwoofer are the perfect portable system - lightweight, big sound and easy changes to vertical coverage for use in different rooms.
Save $150 on an L1 Compact, the speaker that I use at my own church for smaller indoor and outdoor events. Save $75 on T1 Tonematch Mixer. Save up to $400 on these popular L1 speaker systems. And save 15% on the rest of the L1 line. Call 800-747-7301 for more info and pricing on specific models.
For more details on the Bose F1, click here.
The making of a microphone - a video.
We use microphones, we sell microphones, we recommend microphones. I tend to forget all that goes into the making of a good microphone.
This video blew me away. It reminded me that we all have a God-given creative nature that expresses itself in many different ways from music, to engineering, to machinery, and marketing. People design and make the tools we use. Enjoy!
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What others say
I have used the PR30 for the choir, and they were probably the best mics I've ever used.