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Old May 11, 2022 | 01:01 PM
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Default Speaker wiring

I have a 2019 SGS, with a Cicada DSP150.4D and Cicada CH65.4 speakers installed. Local dealer installed, I asked to have the amp bridged. After about a month of riding I was thinking there should be more volume to the system than there is (generally 65% of full while cruising 50mph to hear it clearly, a bar or two below full at 65mph). I pulled the fairing and snapped a picture of the output side, it looks to me that it’s bridged, but not certain. I played with the gains a bit and the Ch 1/2 gain was set a little less than half, maybe 1/8 turn. I turned it up to 1/2 and got some more volume with no distortion. I was about to go another 1/8 or so more and still no distortion at 1 bar below full volume. 1/4 turn and it distorts, but not horribly, but enough to notice. The speakers are rated much higher than the amp can put out bridged, but I know distortion can kill a speaker quickly.

Here is a pic of the speaker out, best I could get. Also a pic of the current DSP. Headunit was flashed with the RF flash.






Does this look bridged? Am I expecting too much from system? I generally stream SirusXM from phone. I want to get the most out of it, maybe I am?

Aside from the volume, the system sounds great.

thoughts?
 
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Old May 11, 2022 | 01:09 PM
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Need picture of other side of amp to see speaker output. The pic you posted is input. I'm gonna take a guess that it's not bridged.

Here's what it should look like if bridged:


 

Last edited by cshocker; May 11, 2022 at 01:15 PM.
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Old May 11, 2022 | 01:56 PM
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Of course I take picture of the wrong side!!




Originally Posted by cshocker
Need picture of other side of amp to see speaker output. The pic you posted is input. I'm gonna take a guess that it's not bridged.

Here's what it should look like if bridged:
 
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Old May 11, 2022 | 02:04 PM
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just the 1 pair of CH6.5s installed in the fairing? Looks like the installer ran the horns and mids to separate channels. This isn't bridged but you do have better control over the settings for the separate speakers (although the EQ settings for CH1 don't look to be set for either mid or horn). If these were bridged you'd only have 4 wires connected per the drawing. Then you'd have the cross-over that came with the CH6.5s connected between the horn and the mid on each side (left and right).
 

Last edited by hamah; May 11, 2022 at 02:14 PM.
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Old May 11, 2022 | 02:05 PM
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Are all 8 wires going to speakers or are 4 of them cut off and tapped end?
 
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Old May 11, 2022 | 02:38 PM
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Not sure, I didn’t follow the wires to see where they end. Had to put bike back together to go to work. I think the installer may have run the speakers bi-amped and put the tweeters on their own channel. I think would explain the 8 wires?

if this is the case, how do I unscrew what has been so screwed up? Is it worth the work?

 
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Old May 11, 2022 | 02:48 PM
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Not sure, I didn’t follow the wires to see where they end. Had to put bike back together to go to work. I think the installer may have run the speakers bi-amped and put the tweeters on their own channel. I think would explain the 8 wires?

if this is the case, how do I unscrew what has been so screwed up? Is it worth the work?

 
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Old May 11, 2022 | 02:51 PM
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This EQ is a preset from Cicada on the DSP
just one set of speakers, too

Originally Posted by hamah
just the 1 pair of CH6.5s installed in the fairing? Looks like the installer ran the horns and mids to separate channels. This isn't bridged but you do have better control over the settings for the separate speakers (although the EQ settings for CH1 don't look to be set for either mid or horn). If these were bridged you'd only have 4 wires connected per the drawing. Then you'd have the cross-over that came with the CH6.5s connected between the horn and the mid on each side (left and right).
 
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Old May 11, 2022 | 04:07 PM
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Yes, the 8 wires looks like it means the setup is bi-amped. This doesn't mean the setup is screwed up but it does look like the EQ should be properly set per channel according to the element type (mid or horn) connected if you stay with bi-amped. Right now it's set up pretty flat from 100Hz-22KHz which is ok if you want to go bridged (you can fine-tune later).

Here is a link to the manual for the CH speakers. Page 6 shows how you likely have your speakers connected now. What you need to find out is if the cross-over is installed (passive) or not (active). With your current setup using the DSP amp, the active setup is best.

Here is a link to the CX150.4D amp on which your DSP amp is based. The specs show that the bridged amp is stable at 4 ohms. If you want to wire for bridged you will need to use the wiring as shown on page 5 of the speaker manual.
 

Last edited by hamah; May 11, 2022 at 04:08 PM.
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Old May 11, 2022 | 04:37 PM
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Thanks for all the information so far…before I go rewiring to 2 channel bridged, a few questions. Will it be much louder and will the sound be better or worse? I’m guessing the installer used the high pass filters shown on page 5/6, I didn’t see them outside of the pods, soI can’t say for certain. I probably can pull it apart and rewire it myself…probably!
 
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