I have ADSL1 20CN on an ultra-long line.
I used to have an ADSL Nation faceplate micro-filter, then changed to the BT SSFP / Pressac (?) faceplate.
More recently still, as I have no phones at all (and have never had any extensions), I’m now using Andrews & Arnold 'blank' faceplates with no filtering in them, just an RJ-45 socket which is straight through to the test socket internally.
Someone told me that if there are no phones, then there's nothing to filter, so I might as well go the straight-thru blank plate route.
Is that actually true? Do the Pressac / Adslnation / BT Mk2 / Mk3 have any merits for someone in my situation?
I read about the filters in BT Mk2 and Mk3 devices. Would they give an ADSL1 user any benefit at all, or are they VDSL2-only?
Is a zero-component-count unit better because there's no possibility of inline loss bearing in mind I need ever mV I can get.
I'm not sure where I might grt a genuine new BT Mk2/Mk3 (which?) faceplate to try and answer my own question?