What's the correct way to connect PC->Amplifier->Speakers?
The PC has two 3.5mm sockets. One inside that is green(G) and one outside that is marked with a headphones(H) icon.
I have the following:
1. Dell Optiplex PC
2. A 3.5mm cable that has one black jack and one red jack.
3. An amplifier. Has 4 connections, 2 for the right and 2 for the left. Right and left have one red and one black.
4. Two speaker cables with a jack on one end that splits into two bare wires at the other. Each cable has two wires one of which is marked with a black line. That gives four connections at the amplifier end.
5. The wall socket is marked PC speaker and marked with an L and an R.
6. Video splitter
7. Interactive whiteboard power supply brick.
Are the PC sockets G and H the same?
If I plug cable(2) direct from the PC(H) into sockets(5) The sound works fine from the speakers above interactive whiteboard. It's just not being loud enough for the classroom.
If I plug cable(2) direct to the amplifier. Which input should I use, the choices are DVD, Tuner, CD, AUX1 or AUX2?
How do I connect the 2 cables(4) to the wall? I've tried every combination I can think of! Most of the time I either get a high pitched sound, crackle or nothing. In one case get I had one speaker working on the left put but only the right cable was plugged in to the wall socket(5)!
Does all equipment(PC, amplifier, PC monitor, video splitter and interactive whiteboard power supply brick) need to come from one power source? There are two sockets on the wall and I have one 4 way extension lead.
Is there a diagram somewhere that shows how it should work? :frusty: