Official SpeakerPower amplifier thread - Page 2 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #11 of 18 Old 04-17-16, 10:28 AM
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Brian Oppegaard
 
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Re: Official SpeakerPower amplifier thread

Quote:
ndyvidual wrote: View Post
I've decided to purchase the 4800 series amplifier once I've completed my build. I have three additional questions. perhaps others will find the answers useful.

#1 In the pull-down there is a pull down selection for the speakon connection wiring. It's not so clear to me though how the wiring diagram looks like or if it's using a 2 or 4 pole type. The following options are listed.

CH1 + CH2 CH2
CH1+CH2 CH2+CH2

#2 for the HT model (with the DSP), is there a high pass filter present in the signal chain? I'm looking for a amplifier with an unrestricted low frequency response.

#3 So that my project moves forward as intended, is there a lead time for availability?
The Speakons can be wired with 1+ and 2+, 1- and 2- wired in parallel for each channel. That is option 2 above.
Option one moves the CH2 connection from 2+2- over to 2+ 2- on the channel one Speakon. channel two"s 2+ and 2- are left open. This puts both channels on the output of channel one's Speakon for occasions where you only want to run one 4 wire cable to the speaker locations. Clear as mud?

The HT model is available with no high pass filter. Just let us know when you order.

The lead time varies. If by some miracle we have the model you want in stock, we ship in a day. But more typically there is a 2-4 week lead time. We are running 3+ weeks right now.
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post #12 of 18 Old 04-17-16, 10:34 AM
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Official SpeakerPower amplifier thread

Thanks for the response on the lead time and filter option.

Regarding the wiring, I had planned to run two subs, in stereo. At the sub connector, I'm tying both +'s and -'s together internally. The amp connect to either or both on the connector end. So I believe my plans matches option 2 you described above-correct?
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post #13 of 18 Old 04-17-16, 10:42 AM
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Re: Official SpeakerPower amplifier thread

Correct. That's a good way to get a high current connection
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post #14 of 18 Old 04-21-16, 09:02 PM Thread Starter
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Re: Official SpeakerPower amplifier thread

Got the 3rd SP2-12000 up and running today.
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post #15 of 18 Old 05-31-16, 08:47 PM
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Re: Official SpeakerPower amplifier thread

I just placed my order for one SP2-4800-DP, option 2 wiring. Looking forward to UPS once again
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Last edited by ndyvidual; 06-02-16 at 03:35 PM.
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post #16 of 18 Old 07-09-16, 04:08 PM
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Re: Official SpeakerPower amplifier thread

SpeakerPower,

My 4800 remote standby goes into standby when 12v is applied to the right pin, ground to the left (when facing the back panel). My Emotiva XMC-1 applies this voltage when the system is ON though.

Is there a way to invert the amplifier's operation when 12vdc is applied? I cannot configure my preamp to send 12vdc when powered down and 0vdc when powered up.
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post #17 of 18 Old 07-22-16, 07:07 PM
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Lightbulb Re: Official SpeakerPower amplifier thread

Quote:
ndyvidual wrote: View Post
SpeakerPower,

My 4800 remote standby goes into standby when 12v is applied to the right pin, ground to the left (when facing the back panel). My Emotiva XMC-1 applies this voltage when the system is ON though.

Is there a way to invert the amplifier's operation when 12vdc is applied? I cannot configure my preamp to send 12vdc when powered down and 0vdc when powered up.
I may have solved my own problem since I didn't get a reply. As a first time SP amp owner, I wasn't aware they came with no installation manual, so for the remote standby plug, I had to test a few things out to figure out how it works.

I put together a truth table using one of the four 12v 100ma triggers from my XMC-1 as an input. After that I used some parts in the garage and made a very simple circuit to pull the level on the right connector to 0v when the processor is asleep and when it wakes up, the relay switches to float that same connector which wakes the amplifier up.

I hope this is useful to someone. Any suggestions on how to improve it would be welcomed.
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post #18 of 18 Old 08-19-16, 04:47 PM
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Re: Official SpeakerPower amplifier thread

Sorry about getting back to you so late. Turns out I was not subscribed to this thread! Fortunately you figured out the exact solution I would have recommended anyway. Hope you are enjoying your amp. Let me know if you have any other questions.

Brian Oppegaard
SpeakerPower
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