Just finished my Hypex 180 ST stereo amplifier.
I installed RCA (single ended) inputs and XLR (balanced inputs). I would like to wire a toggle switch so I can switch between these inputs. Does anyone have a good schematic/diagram of how to do this?
I installed RCA (single ended) inputs and XLR (balanced inputs). I would like to wire a toggle switch so I can switch between these inputs. Does anyone have a good schematic/diagram of how to do this?
My amp works great but I only wound up connecting the XLR balanced inputs. I now want to connect the RCA (single ended) with toggle between so I can try it with an unbalanced preamp. In looking at the schematic on 6 moons, why does it show two switches/toggles in the -VE pathway? Or am I not reading it correctly?
the impedances on the two signal poles must remain identical for the balanced impedance connection to remain fully effective.
If you add a switch to one pole to bring in an unbalanced connector, then that may add just a tiny bit more capacitance. This would unbalance the HF impedance when switched out. Switching both poles may just balance the added capacitance.
If you add a switch to one pole to bring in an unbalanced connector, then that may add just a tiny bit more capacitance. This would unbalance the HF impedance when switched out. Switching both poles may just balance the added capacitance.
The 6moons diagrams are wrong.
They show Pin1 of the XLR and the barrel of the RCA/Phono connected to the same "ground"
Pin1 goes to Chassis right next to the socket.
RCA/Phono barrel goes to Signal Return/Ground.
They show Pin1 of the XLR and the barrel of the RCA/Phono connected to the same "ground"
Pin1 goes to Chassis right next to the socket.
RCA/Phono barrel goes to Signal Return/Ground.
Hypex UcD-series unbalanced/balanced wiring diagram can be found here -
https://www.hypex.nl/img/upload/doc/an_wp/AN_Amplifier_signal_wiring.pdf
The answer is to wire RCA active to XLR pin 2, RCA shield to pin 1, then RCA shield via a switch to XLR pin 3 ...
but pay attention to earthing, especially the Hypex note:
Alternatively you could leave your amplifier chassis with XLR inputs only, then make up suitable RCA-to-XLR cables.
https://www.hypex.nl/img/upload/doc/an_wp/AN_Amplifier_signal_wiring.pdf
The answer is to wire RCA active to XLR pin 2, RCA shield to pin 1, then RCA shield via a switch to XLR pin 3 ...
but pay attention to earthing, especially the Hypex note:
Alternatively you could leave your amplifier chassis with XLR inputs only, then make up suitable RCA-to-XLR cables.
I can confirm this one as a flawless working solution. I own a Hypex ucd700 amp which I drive with a B1 with Korg Nutube and I connect them with a rca to xlr cable without any problem.
