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Discussion Starter · #1 ·
Howdy folks,

Running 6 coax speakers on my bike. 2 Ground Zero Yellow Baskets (250wrms crossed @ 90hz) in pods down below, 2 mmats pa601cx in the fairing, and 2 Hertz SX 165 Neo's in the tour pak pods (150wrms & both crossed @ 100hz)

Kenwood-KMR-M325BT head unit has 13 band EQ adjustments. Obviously the idea on a bike is to hear it loud going down the hwy...which requires tons of clean power...but certain songs just "scream" in my face. Is there anyone that would know which settings to tone down and which to increase to help offset that increased need to be really loud?


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Discussion Starter · #2 ·
Howdy folks,

Running 6 coax speakers on my bike. 2 Ground Zero Yellow Baskets (250wrms crossed @ 90hz) in pods down below, 2 mmats pa601cx in the fairing, and 2 Hertz SX 165 Neo's in the tour pak pods (150wrms & both crossed @ 100hz)

Kenwood-KMR-M325BT head unit has 13 band EQ adjustments. Obviously the idea on a bike is to hear it loud going down the hwy...which requires tons of clean power...but certain songs just "scream" in my face. Is there anyone that would know which settings to tone down and which to increase to help offset that increased need to be really loud?

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Holy crap! You have 6 tweeters playing basically at ear level, I would probably pulling everything from 4khz down. Without hearing it though nobody can really tell you what to do, I imagine it sounds awful though.
 

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Discussion Starter · #4 ·
Holy crap! You have 6 tweeters playing basically at ear level, I would probably pulling everything from 4khz down. Without hearing it though nobody can really tell you what to do, I imagine it sounds awful though.
😆 - I wouldn't say it sounds awful...just certain songs really get loud.

Here is a walk away with a song that does not bother me at high volume...



but something with high treble (soft rock) really pierces the ears sometimes.
 

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2kHz is what most people call "ringing" when they hear feedback at a concert as this is the most common xover point in large scale sound reinforcement so all the drivers in the top boxes are contributing to the problem. So I'd start with 1 / 1.6 / 2.5 range and if that's not the problem then download a frequency generator on your phone and use it to sweep the spectrum till you find the offending frequency.
 

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Discussion Starter · #7 ·
2kHz is what most people call "ringing" when they hear feedback at a concert as this is the most common xover point in large scale sound reinforcement so all the drivers in the top boxes are contributing to the problem. So I'd start with 1 / 1.6 / 2.5 range and if that's not the problem then download a frequency generator on your phone and use it to sweep the spectrum till you find the offending frequency.
Fair enough...how much do you think I should drop them to become effective? Also, what app would you recommend?
 

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Fair enough...how much do you think I should drop them to become effective? Also, what app would you recommend?
+/- 3dB requires 10x more power or a 10x cut in power so start there with one band at a time

Any frequency generator will be fine.
 

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Discussion Starter · #9 ·
So each level I drop on that freq is 3db? Am I getting that right? Checking with my O-Scope will definitely be invaluable to determine exact wattage once I have got the band dialed in.

Pardon my ignorance
 

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Howdy folks,

Running 6 coax speakers on my bike. 2 Ground Zero Yellow Baskets (250wrms crossed @ 90hz) in pods down below, 2 mmats pa601cx in the fairing, and 2 Hertz SX 165 Neo's in the tour pak pods (150wrms & both crossed @ 100hz)

Kenwood-KMR-M325BT head unit has 13 band EQ adjustments. Obviously the idea on a bike is to hear it loud going down the hwy...which requires tons of clean power...but certain songs just "scream" in my face. Is there anyone that would know which settings to tone down and which to increase to help offset that increased need to be really loud?


View attachment 342357

Are you using your cell connected to the radio to play music? If so android or Apple?
 

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Yes...only source of music...android - Amazon Music & YouTube
Ok when you turn the volume up on the phone stay out of the red. Past the red and you get the same issues you have now. Screaming horns, vocals and bass that'll blow your speakers if your not listening.

Give that a shot and let's see how that works.
 

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Discussion Starter · #13 ·
Ok when you turn the volume up on the phone stay out of the red. Past the red and you get the same issues you have now. Screaming horns, vocals and bass that'll blow your speakers if your not listening.

Give that a shot and let's see how that works.
I set the gains with my phone volume on max...there is no "red" section? Phone maxed, deck @ 32, I have no clipping on my scope.
 

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😆 - I wouldn't say it sounds awful...just certain songs really get loud.

Here is a walk away with a song that does not bother me at high volume...



but something with high treble (soft rock) really pierces the ears sometimes.

Sir that bike sounds great. My money is on your phone volume.


That said I am gonna need you to post some songs in one of the music threads lol! 🍻
 

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Plus or minus 3db is double or half the power not 10x

to sound twice as loud needs 10db
Thank you again for correcting this and why do I always get that backwards?

3dB is Double Wattage
10dB is Double Volume
Yes...only source of music...android - Amazon Music & YouTube
Which android device are you using and which OS is it running?
 

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Discussion Starter · #18 ·
Oh boy...now I am really confused.

Pixel 5...12.

When I was tinkering around with my O-Scope and the lowering/raising the freq level, the total output wattage changes as I lowered/raised the levels. So my 150w going to my mmats was 127 when I dropped everything from 4k up to -4. Does that mean that once I find the sound I like, I need to turn gain up again to hit target voltage?
 

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Oh boy...now I am really confused.

Pixel 5...12.

When I was tinkering around with my O-Scope and the lowering/raising the freq level, the total output wattage changes as I lowered/raised the levels. So my 150w going to my mmats was 127 when I dropped everything from 4k up to -4. Does that mean that once I find the sound I like, I need to turn gain up again to hit target voltage?
No! You don’t want anywhere near 127watts near a tweeter… you don’t have a target voltage to hit… Set your gains at low freqs and the top end will do what it does, defo don’t go cranking gains to match some pointless voltage number
 

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Discussion Starter · #20 ·
No! You don’t want anywhere near 127watts near a tweeter… you don’t have a target voltage to hit… Set your gains at low freqs and the top end will do what it does, defo don’t go cranking gains to match some pointless voltage number
No but I do...doing 80mph down the freeway, you won't hear a coax with only 100w.

I really think it's time for a DSP.
 
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