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Author Topic: Is this real?  (Read 1919 times)

Dave Garoutte

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Is this real?
« on: February 02, 2019, 04:56:44 pm »

I'm considering building an 8ch Senny wireless rack.
What are my combiner options?

8 ch combiner

Thanks
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Brian Jojade

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Re: Is this real?
« Reply #1 on: February 02, 2019, 06:14:51 pm »

That looks like an 8 channel SPLITTER.  Allows you to split the antenna signal to up to 8 mic receivers.  RF is relatively universal and you should be OK mixing and matching brands as long as you're working within the frequency bands of the equipment.

Now, I'm confused as to why it would have a display with antenna signal strength meters.  What is it actually measuring? 

Also, the BNC outputs don't look like the same size as the inputs.  You might need different patch cables to your receivers. to make it work.
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Brad Harris

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Re: Is this real?
« Reply #2 on: February 02, 2019, 09:38:36 pm »

Yup, antenna Distro, not a Combiner ...

Meters are probably reading how much mW (crude signal strength meter) is at a the receiver input (not per frequency per say)

Also, SMA connectors for the output ... that many (18) BNC won't fit (nicely) into a 1u space


Brad
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Scott Helmke

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Re: Is this real?
« Reply #3 on: February 02, 2019, 09:42:36 pm »

Looks like Chinese counterfeit crap. The front panel display is probably just a light-up with that information permanently displayed, and the antennas are some weird copy of Shure UA874 paddles. 

Also, SMA antenna outputs?!?
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Ray Aberle

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Re: Is this real?
« Reply #4 on: February 02, 2019, 10:36:31 pm »

I'm considering building an 8ch Senny wireless rack.
What are my combiner options?
If you want to stay legit, grab Mike, or myself, or Tim, as Authorised Sennheiser Dealers and let one of us whip up a package. :-)

-Ray
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Russell Ault

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Re: Is this real?
« Reply #5 on: February 03, 2019, 12:35:13 am »

8 ch combiner

You might have noticed that the listing doesn't actually say "Sennheiser" anywhere...

For 8 channels of Sennheiser G3/4 then a pair of ASA1s is pretty typically (Sennheiser does make an 8-channel distro, the ASA3000, but it's a lot more money).

Of course, if you're looking to save money (and don't mind going off the beaten path a ways) I've had very good experiences with a pair of good quality 8-channel unity gain cable TV distribution amplifiers...

-Russ
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Lyle Williams

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Re: Is this real?
« Reply #6 on: February 03, 2019, 07:55:50 am »

An amplified splitter is likely to be the second least sophisticated piece of electronic equipment you will own (after a transformer-based wall-wart)


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Dave Garoutte

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Re: Is this real?
« Reply #7 on: February 03, 2019, 04:13:02 pm »

Doh!  I didn't notice it was a splitter.  I figured it was cheapo, though.

I have two 4ch roadcases now with asa1 combiners and am looking at adding 8 more channels in one case.
Is it possible to combine the output from multiple combiners?
I'm hoping not to end up with an antenna farm if I need paddles.
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Russell Ault

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Re: Is this real?
« Reply #8 on: February 03, 2019, 05:53:46 pm »

Doh!  I didn't notice it was a splitter.  I figured it was cheapo, though.

I have two 4ch roadcases now with asa1 combiners and am looking at adding 8 more channels in one case.
Is it possible to combine the output from multiple combiners?
I'm hoping not to end up with an antenna farm if I need paddles.

I think we might have a terminology issue here. A "combiner" is something that takes several RF signals and combines them into a single signal path. A splitter (or distro) is something that takes a single RF signal path and splits it into several identical copies. Combiners are used with IEM transmitters, taking several separate IEM signals and combining them into a single transmission line. Splitters are used with wireless microphone receivers, taking a single (typically pair of) antenna feeds and splitting them out to multiple receivers.

The ASA 1 is an 4-way antenna splitter, splitting one pair of antenna feeds to four separate wireless microphone receivers. A pair of ASA 1s can be cascaded into each other to create an 8-way splitter, which is the typical setup for 8-channel Sennheiser racks.

For IEMs, the Sennheiser 4-channel combiner is the AC 3. Sennheiser does make an 8-channel combiner, the AC 3200-II, but it is a lot of money. In theory you can passively combine the output of two 4-channel combiners, but you'll suffer ~4dB of loss for doing so (i.e. more than half your transmit power).

I'm still not sure if you're talking about wireless microphones or IEMs...

-Russ
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Tim Halligan

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Re: Is this real?
« Reply #9 on: February 03, 2019, 07:26:17 pm »

Looks like Chinese counterfeit crap.

Sure does.

Avoid.


Cheers,
Tim
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Re: Is this real?
« Reply #9 on: February 03, 2019, 07:26:17 pm »


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