Anthem STR pre-amp

[tree]

I wonder if a 3.5mm mono y splitter would work? Single male end into amp and trigger wire from AVR and STR into female ends. If both were accidently turned on at same time would it cause a problem?

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I had a similar dilemma and I reached out to Anthem support about this. They claim there is no protection on the trigger outlet, so Y splitter isn't a good idea. I wasn't able to get an answer for that from my AVR manufacturer. I also reached out to a known audio equipment repair man in my area and he wanted to charge from me a very pricey solution. This was baffling to me because I thought that all I needed was a couple of diods, but he claimed I need more than that. I know people from my previous work which design electronics components, just didn't got around to ask them about this. In the end I gave up on this and the AVR is on when I listen to Music & TV.
I think that diod will reduce the voltage passing by around 0.7v (depends on the diod) but I don't think that the trigger is that sensitive as to care if he sees 12v or 10v. But if the trigger in does care, than a diod by itself won't work.

 

[Meep]

I had a similar dilemma and I reached out to Anthem support about this. They claim there is no protection on the trigger outlet, so Y splitter isn't a good idea. I wasn't able to get an answer for that from my AVR manufacturer. I also reached out to a known audio equipment repair man in my area and he wanted to charge from me a very pricey solution. This was baffling to me because I thought that all I needed was a couple of diods, but he claimed I need more than that. I know people from my previous work which design electronics components, just didn't got around to ask them about this. In the end I gave up on this and the AVR is on when I listen to Music & TV.
I think that diod will reduce the voltage passing by around 0.7v (depends on the diod) but I don't think that the trigger is that sensitive as to care if he sees 12v or 10v. But if the trigger in does care, than a diod by itself won't work.

Thanks for that detailed update.

I think that I too will live with both devices being powered up all the time. Feels like it's the path of least resistance.

 

[tree]

Thanks for that detailed update.

I think that I too will live with both devices being powered up all the time. Feels like it's the path of least resistance.

Just one thing. They both are on when listening to music not the tv/movies due to the bypass.

 

[Meep]

Just one thing. They both are on when listening to music not the tv/movies due to the bypass.

Well, that's the point.

If I'm sharing a power amp, either the AV Processor or the PRE have to trigger it. One or the other will be on unnecessarily in some cases.

If the PRE is the trigger, it needs to be on for movies. Unless there's a way to enable trigger in bypass mode?

I've got the PRE up and running but am waiting for some cables to do the integration. I'll have a play about with it when they arrive.

 

[Meep]

So this is worse than expected

As a reminder, I'm trying to set up my STR Pre in HT Bypass mode with a Marantz Processor in order to share L/R speakers and the amp that drives them.

The dilemma is, how do I trigger the amp ON when either one or the other pre amps is in use

So, having played about a bit, it turns out that HT Bypass mode seems to only engage when the STR Pre is in standby. It's not possible to select HT Bypass when the STR is powered on (the XLR input disappears from the menu when HT Bypass is enabled).

As the STR is in standby, no trigger voltage is output. Therefore, the STR cannot trigger the amp in HT Bypass, and I"ll need to trigger it from the AV Processor

That's fine until I want to listen to some stereo through the STR alone - there's no way to trigger the PA in this case and I'd need to redundantly power up the AV or, sacrilege, manually power on the power amp by pressing a button.

Unless I'm missing something fundamental here, this looks like a very half-arsed design on the Anthem for shared power amp management which is kind of the main point of HT Bypass

 

[tree]

So this is worse than expected

As a reminder, I'm trying to set up my STR Pre in HT Bypass mode with a Marantz Processor I. Order to share L/R speakers and the am that drives them.

The dilemma is, how do I trigger the amp ON when either on or the other pre amps is in use

So, having played about a bit, it turns out that HT Bypass mode seems to only engage when the STR Pre is in standby. It's not possible to select HT Bypass when the STR is powered on (the XLR input disappears from the menu when HT Bypass is enabled).

As the STR is in standby, no trigger voltage is output. Therefore, the STR cannot trigger the amp in HT Bypass, and I"ll need to trigger it from the AV Processor

That's fine until I want to listen to some stereo through the STR alone - there's no way to trigger the PA in this case and I'd need to redundantly power up the AV or, sacrilege, manually power on the power amp

Unless I'm missing something fundamental here, this looks like a very half-arsed design on the Anthem for shared power amp management which is kind of the main point of HT Bypass

You haven't missed anything. The only thing that makes the setup manageable is the macros on the smart remote.

 

[Meep]

I believe I've found a solution;

https://www.amazon.com/gp/product/B0D482JZZG/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

This will generate 12V on a signal sense over XLR. If I place this between my STR and Power Amp, it should trigger the amp in all cases. Plus it has the added benefit of allows the addition of another source in future.

I'll report back on efficacy.