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Post by pdaddy on Feb 15, 2013 12:54:01 GMT -5
Okay, so if I buy two or more mini-x's what use case(s) can I solve with that feature?
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Post by AudioHTIT on Feb 15, 2013 13:01:08 GMT -5
Okay, so if I buy two or more mini-x's what use case(s) can I solve with that feature? It lets you connect a single source to multiple amps (without splitters), each amp could be connected to a separate pair of speakers which would have their own volume control. Maybe for speakers in multiple rooms, or with different efficiencies; or if the load gets too low, add another amp. Mostly convenience. |
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Post by Leonski on Sept 22, 2013 23:50:42 GMT -5
IF you had speakers which could be BiAmped, you could use a single mini per speaker. Run ONE lead from the preamp and loop it over to the other channel. One set of speaker outputs per 'way' and their you are. Bi Amped!
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Post by Gary Cook on Sept 23, 2013 1:15:28 GMT -5
Back in the days when I used to build my own amps (from kits, don't get too excited) I used to have one stereo amp for each speaker. One channel driving the mid and high and the other channel driving the woofer. That way each amp was located with the speaker and had very short speaker wires.
Why? Well a 25 watt Class A stereo amp kit was about 1/4 what a 40 watt Class A stereo amp kit cost. It was a cheap way to get 50 watts per channel. Plus it impressed the punters having one amp per speaker.
Cheers
Gary
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Post by PGT on Sept 23, 2013 8:28:36 GMT -5
I've got a similar feature on my Sherbourn 4Z-75 which runs my outdoor speakers. I use the output to connect to a Crown amp that drives subwoofers for that zone.  |
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Post by solarrdadd on Sept 23, 2013 10:15:27 GMT -5
are the output RCA jacks active when the amp is in standby (sleep) or only when it's active? this is important to know before purchasing and finding out you have to have the middle of the run mini-x on so that the mini-x downstream can get signal.
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KeithL
Administrator 
Posts: 10,256
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Post by KeithL on Sept 23, 2013 11:37:38 GMT -5
They are buffered, and so are active when the Mini-X is on (you may get distorted - or no - output from the chain outputs when it is off). are the output RCA jacks active when the amp is in standby (sleep) or only when it's active? this is important to know before purchasing and finding out you have to have the middle of the run mini-x on so that the mini-x downstream can get signal. |
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Post by Jim on Sept 23, 2013 11:43:26 GMT -5
They are buffered, and so are active when the Mini-X is on (you may get distorted - or no - output from the chain outputs when it is off). are the output RCA jacks active when the amp is in standby (sleep) or only when it's active? this is important to know before purchasing and finding out you have to have the middle of the run mini-x on so that the mini-x downstream can get signal. Can you answer a dumb question? What does it mean exactly, when you say the outputs are "buffered"? This helped a little bit, but confused me at the same time: www.head-fi.org/t/593448/what-does-a-buffer-do-for-the-output-stage-of-an-audio-amplifierIs a buffered line level output, basically just capable of more stable output, because of the higher current? |
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Post by solarrdadd on Sept 23, 2013 12:21:43 GMT -5
Okay, so if I buy two or more mini-x's what use case(s) can I solve with that feature? Okay, so if I buy two or more mini-x's what use case(s) can I solve with that feature? It lets you connect a single source to multiple amps (without splitters), each amp could be connected to a separate pair of speakers which would have their own volume control. Maybe for speakers in multiple rooms, or with different efficiencies; or if the load gets too low, add another amp. Mostly convenience. keith, this is the reason i asked about the state of the output jacks on the mini-x. just wanted to have everyone know before doing the above that from the first mini-x hit up to the last "middle of the run" mini-x they all would have to be on or you will lose signal to all of the amps after the one that's off. this is good to know for folks who plan on using the min-x outputs as a splitter and have multiple mini-x amps on different floors or rooms in their home as a whole house solution as it's kinda mentioned in the above post. thank you for your response Keith.  |
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Post by leonski on Sept 28, 2013 23:00:58 GMT -5
If I understand this right:
You could 'daisy chain' the input to the output for loop. This would result in a drop in input impedance as seen by the preamp and potential ground loop issues. This is simple / fast and 'dirty'.
A 'Buffer' would be a way to isolate the input from the output. The normal practice these days is to use an opamp. So, the output impedance of the loop out remains low while the input impendance isn't effected by the loop thru. A little more complicated to make work, but clean.
Parasound does the same thing....but the amps in the Halo line with this feature START at about 1000$ (rounded)
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