bandcoach
Zukatoku - Mod Scientist
yes - I'll draw up a circuit later - have to go collect some printers right now other side of the city - 94km round trip (59m)
Question how to PA setup with Subs & crossover & multiple amps
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xshanesworldx
New member
Cool. Thanx dude.
bandcoach
Zukatoku - Mod Scientist
So, I've done a little research and you can bi amp the harbinger boxes no problem, but the rockvilles are a different story - mainly because they use piezo elements in both the horns and the tweeters
this means that you can use the biamp inputs on the harbinger boxes, but would need to use the regular inputs on the rockvilles - still need 3 amps and a way to send the signal to both the crossover and the rockvilles amp
i.e. connect the outputs of the mixer to a splitter so that it can be sent to both the crossover and the rockville amp, connect the low out of the crossover to the low amp for the harbinger boxes and high out of the crossover to high amp for the harbinger boxes
because the rockvilles contain piezo drivers for the horn and tweeters, there is no benefit in trying to limit the freq range driving them - they naturally do not respond to frequencies below or above their active range - most attempts at putting a crossover into boxes like these is to limit the effects of hf energy on the low drivers not the effects of lf energy on the high drivers
we could still proceed with some form of biamp driving for the rockvilles if you want.
i would also caution you to consider that you may need at least one more amp simply to effectively drive the lf drivers in each box at optimal levels without compromising the impedance seen by any one amp
this means that you can use the biamp inputs on the harbinger boxes, but would need to use the regular inputs on the rockvilles - still need 3 amps and a way to send the signal to both the crossover and the rockvilles amp
i.e. connect the outputs of the mixer to a splitter so that it can be sent to both the crossover and the rockville amp, connect the low out of the crossover to the low amp for the harbinger boxes and high out of the crossover to high amp for the harbinger boxes
because the rockvilles contain piezo drivers for the horn and tweeters, there is no benefit in trying to limit the freq range driving them - they naturally do not respond to frequencies below or above their active range - most attempts at putting a crossover into boxes like these is to limit the effects of hf energy on the low drivers not the effects of lf energy on the high drivers
we could still proceed with some form of biamp driving for the rockvilles if you want.
i would also caution you to consider that you may need at least one more amp simply to effectively drive the lf drivers in each box at optimal levels without compromising the impedance seen by any one amp
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xshanesworldx
New member
the harbingers say they are bi-amped, but where the 1/4" jack plugs in along with the speakon connection it does not specify which is the high or low inputs.
this is a diagram of how i have it set up now, and it works.
this is a diagram of how i have it set up now, and it works.
bandcoach
Zukatoku - Mod Scientist
can you take the back plate off of the harbinger and the rockville boxes and take photo and post those I may be able to decipher what is going on by looking at the cabling coming of the plugs - both boxes appear to be from the same factory as technical pro and are just house brand names for different companies in the USA (rockville is definitely an Audio Savings house brand as the website rockvillepro,com redirects to audio savings)
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xshanesworldx
New member
I opened them and they are both wired for parallel.
bandcoach
Zukatoku - Mod Scientist
pictures please - you may not be seeing what I will see -
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xshanesworldx
New member
I'll have to figure out how to get them from phone to the computer tomorrow. Thank you again.