Category Archives: Testing

Making a QTP patching system using DB25 patchbays

Audio over CAT5, Balancing, CAT6-Audio Transfer, Connections, DB25, IDentification Area, Interface, Label Area, Presentation, QTP, QTP to DB25, Quad Twisted Pair, Rhumor, T-568A, Testing

Dual row, 24 Channel by 24 Channel
DB25 to DB25 patchbay wiring price:
(12)  QTP-DB25M              $12.04    = $144.48
(24) CAT6-10-Green         $7.80      =  $187.20
6 cable  price: $331.58   

Checking the spacing fit for QTP-DB25M adapters.

IMG_6285 IMG_6291 IMG_6294 IMG_6299 IMG_6301 IMG_6303 IMG_6307 IMG_6319Not a single problem detected.  With all signals balanced and power on two different phases, no measurable induced noise detected.

Ask us about Bit-Tree patchbays

Tristan Miller vs 1000 feet of Quad Twisted Pair

Audio, Balancing, Pinout, QTP, Quad Twisted Pair, Testing, WBS

We were lucky enough to have Tristan Miller of Catherine North Audio over for the day to give Quad Twisted Pair an examination.  Tristan is an Electronics Technician with a comprehensive background in Electrical systems being a licensed Electrician.  Having implemented over a thousand channels of QuadTwisted Pair in his recording studio(s), he has been a great influence of the ideas surrounding implementation and execution.   His understanding of Electrical and audio systems is like no other.   He came armed with a brand new 1000 foot box of CAT5e Quad Twisted Pair cable to play with.  Along with repeating our original tests, some new tests were conducted to compliment our original findings.

We let Tristan drive the Audio Precision 2700 so all  tests results were independently confirmed:
2015-03-05 15.37.41 Continue reading Tristan Miller vs 1000 feet of Quad Twisted Pair →