We are working on a particularly large install wherein we need to connect a pair of AHM and send a variable level from one to the other. Essentially we need the stereo input 1/2 of the first AHM to send a variable level output to a second AHM. We cannot use a local output for this purpose as they are all already taken and so SLINK seems the way to go.
However, no matter how I configure things I can only get a fixed level output going over SLINK from the first to second AHM.
Some basic guidance on if this can be done at all followed by basic config info would be greatly appreciated.
To answer your question with another question, what are you meaning by variable level/fixed level in this instance?
If you route a channel over SLink from AHM to AHM, you get level control both at the output of the first AHM and the input side on the second AHM.
What you’re saying I should get is what I’m expecting… if I understand correctly.
To make it very pragmatic, we need to adjust the input level on the first AHM and have that also change at the second AHM so that we essentially have a single volume control for the outputs across both AHM. This seems logical enough and certainly seems correct according to documentation… however all we are getting is input level control at the first AHM and constant (fixed) level at the second.
Aha! I understand what you mean. You’d like shared control of outputs between two AHMs, from a single fader, is that correct?
If you set up your gain structure correctly, you should be able to send from a zone output to both local outputs and the SLink output, and have the fader on the primary AHM controlling the output on the second - you’d just have to set a signal path clear-through the second AHM that runs at unity gain. Any changes to the level on the first unit would affect the output to the second also, and therefore the output from the second unit.
Does that make sense, or have I missed the mark?
If you’re not able to upload the configs, you could send it to support@allen-heath.com FAO Mark and I can pick it up and verify it for you.
I think you are understanding our predicament perfectly.
I’m a bit new to SLINK and I was expecting to see it as possible output choice in the XPoint Routing but of course it’s not there.
The best I’ve been able to do is send on the Insert B and pick it up at the second unit on I/O 1/2. However as stated prior that does not vary with the input level.
I feel like we’re really close to getting this right so if you have a pointer on where to configure the first AHM to send over the SLINK properly we may be good to go.
These can be set to follow fader, mute and so on - and you can choose the output source (i.e. where in the input signal path the source point is) and ensure that they are post-fader.
These are then assigned to SLink outputs in the IO patchbay, as below:
You can assign multiple outputs under Channels → Zones → Outputs/Limiters
Assign here to both your local outputs from the first AHM, and the send channels for the second.
For both cases:
On the second AHM, set your input trim on the incoming SLink channels (on an input processing channel(s) to 0dB and all subsequent levels at 0dB unless a tweak in output level or different processing is required.
In both cases above, the send from the first AHM is post fader so levels on the second unit will respond to control inputs from the first.
I was taking my screenshots on an AHM-64, which has a native SLink port - if you’re using an AHM-32 or an AHM-16, you’ll need to use an SLink IO option card. The functionality is the same - you’d just patch via the I/O Port Outputs page instead.
