andyr Posted July 27, 2023 Posted July 27, 2023 A friend of mine received some cables when he bought a Marantz SR4300 amp. They seem a bit weird to me - so I'm hoping someone here can identify them. The first one is an interconnect - but why is there an extra wire (which seems to be attached to the RCA barrel at one end)? The second one has a standard optical plug at one end ... but a very strange plug on the other! Anyone know what this is? Anyone??
ray4410 Posted July 27, 2023 Posted July 27, 2023 3.5mm Optical Cable Digital Toslink used on some portable devices the rca cable i would say it has the wire connected to the barrel of the rca so you can connect to the earth post usually used with vinyl playback.
sakabatou Posted July 27, 2023 Posted July 27, 2023 On 27/07/2023 at 8:38 AM, andyr said: Anyone?? Expand Actually, that 3.5mm mini-toslink connector might be an adapter - check if it pulls off
andyr Posted July 27, 2023 Author Posted July 27, 2023 Thank you guys - @ray4410 and @sakabatou. I will pass this info onto Paul.
tubularbells Posted July 27, 2023 Posted July 27, 2023 First one has an additional center wire that's used to ground a turntable. 1
wasabijim Posted July 27, 2023 Posted July 27, 2023 second wire is optic but has 2 different connections, both support optic. The Chromecast Audio, for example, it can output either analogue or digital (as optical) from the same connection port. Just depends on what you plug into it. If you don't want to the Chromecast's DAC you'd use an optical cable like the one you have, otherwise it can also take a 3.5mm TRRS connection.
wasabijim Posted July 27, 2023 Posted July 27, 2023 On 27/07/2023 at 10:21 AM, sakabatou said: Actually, that 3.5mm mini-toslink connector might be an adapter - check if it pulls off Expand yeah you're right, it looks like it might just slip off
imoza Posted July 29, 2023 Posted July 29, 2023 (edited) Yes the end does come off the optical cable. Just want to clear up that RCA cable wire. The wire is not attached to the barrel . The picture does make it look that way though,sorry. Thanks Paul Edited July 29, 2023 by imoza
muon* Posted July 29, 2023 Posted July 29, 2023 The wire is a ground wire to connect the earth on the TT to the earth on the phono stage, or in the case of an integrated amp with built in phono, to the earth on it. So the RCA lead is for a TT. 1
imoza Posted July 29, 2023 Posted July 29, 2023 Muon thank you for letting me know, that's great. Cheers Paul
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