Alto Trouper - How to best link with a sub

What is the best way to link the Alto Trouper with a sub?

1. Can the link output be used, or is this not recommended because: a) the link output signal will be cut off at 65Hz so nothing below that will go to the sub, and b) the Trouper will still be trying to handle the lower frequencies, thereby muddying the mix. If this is correct, when using a subwoofer with the Trouper, is a separate mixer channel or additional crossover recommended to be used?

OR

2. Is the link output signal the same as the original input signal, meaning the additional speaker OR subwoofer would receive the signal as originally sent by the source, so: a) the frequencies below 65Hz would go to the subwoofer, and b) the bass could be rolled off using the EQ on the back of the Trouper allowing a cleaner mix. If this is correct, when using a subwoofer with the Trouper, is the link output recommended for subwoofer use?

Background:
A. The Alto product information (see https://www.altoproaudio.com/products... ) states that the link output can be used for a subwoofer, and there is a NAMM video where the Alto representative also states the link output can be used for a subwoofer.

B However, in a previous post on this forum, Bill R (Employee) appears to state that the link output should not be used (see http://community.altoprofessional.com... )

We all know that a subwoofer CAN be plugged into the link output, the question is will this produce the desired result of having the subwoofer handle the all the lower frequencies, while the trouper handles just the higher frequencies? Or instead will the subwoofer only handle frequencies starting at 65Hz, and in addition the Trouper will be trying to process the lower end as well as the higher end?

The Trouper is a great product & i really like mine, I've searched the web & haven't found a definitive answer to this question, either way won't change my opinion of the product. I'm not a sound guy & my technical expertise is limited, so I just would like to know so I can plan accordingly.
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  • Hi,

    Thanks for posting!

    It seems like you're more or less asking if the Link Output comes after some sort of crossover. The link output will be a clone/mix of all three signal inputs (post-volume/EQ). There is no crossover on the output, so anything playing out the speaker is being sent to the Link Output. If connected to the sub, the sub will receive all frequencies and the Trouper will continue to play all frequencies.

    The Link output can absolutely be used for a sub, though ideally, you would be looking for a sub specific, post-crossover output, which the Trouper does not have. Subs typically have their own crossovers built in and many will have post-crossover outputs to connect to your speakers, assuming the sub is active. If you have a separate amp for your sub, the amp may have post-crossover outputs. Unless you're trying to connect to the Trouper via bluetooth, I normally recommend running the signal to the sub first and then run the outputs on the sub to the speakers (Trouper).

    If connected via bluetooth, the only way to connect the subs would be via the Link Output which should be fine depending on the sub. For more professional scenarios, I would not recommend using the bluetooth input anyway.

    I hope this helps! Let me know if you have more questions.
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  • I recently bought two Alto Troupers. I have a home stereo subwoofer by Polk audio. It sounds fine for living room playing and I intend to use the Alto speakers to listen at home as well as for practice and to take them out to play at small gigs (without the sub). The sub has RCA ins left and right, and no outs. I have a mixer and have fed main outs to Altos and headphone outs to sub. But if there’s a way to just use the links to feed the sub, I’d rather leave the mixer out of the home system.
    I’d like to know two things.
    1. You say that using the link... “anything playing out the speaker is being sent to the Link Output.” Did you mean that the original signal is passed thru the XLR link?... or would the limits of the lower frequencies of the Altos be passed on thru the link? I don’t know a lot about PA gear and though I think it’s the former I’ve been fooled before so would like pro advice on this.
    2. How would I go from the XLR link to the RCA input? What adapters would you recommend. The Polk sub has volume and crossover range select. I plan to set the sub at just adding the lowest frequencies as I noticed that the Altos have decent bass, all but the lowest frequencies are well defined. Very nice sounding indeed.
    Thanks for any technical help you can impart.
    All the best,
    Roger
    • Hello, Rbriand

      Thanks for posting! 

      Corey S. explains the link output, please refer to that response. It's going to be the same exact signal that is going into the first Trouper.

      You can use an XLR to RCA cable, just keep in mind you will have about a 20ft cap otherwise you will get signal loss. You can get these cables at most local music shops.

      I hope this clears things up for you! 
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