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Need help with tuning, where do I start?

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Old Nov 28, 2011 | 08:45 PM
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Default Need help with tuning, where do I start?

Finally done with the audio install. MANY thanks to Dennis for answering my noobish PMs, what a great guy. Thank you Dennis. Also want to thank all the help I got here on Audio forum, never would've been able to get through this before the internet age. Love that backup camera. I've read through the manual of the amplifier, and the head unit, so I've an idea of what I need to accomplish, just not sure on HOW to achieve it.

Do I start from within the head unit's crossover menu or from the amp?

Head unit: Kenwood 6980
Speakers: Focal 165 tweeters and woofers.
Subwoofer: Arc Audio D10
Amplifier: Arc Audio XDi 805 5 channels, bridged to 3 channels

On the crossovers, they have a switch for dB: 0, -3, -6.
I put this at -3

They also have another switch: High or Flat.
I left this at Flat

In the HU's menu:

The Frequency line is not adjustable.
The Level line is: it goes from 0 to10.
Subwoofer level: from 0 to 10, I left it at 5.

Here are photos of the amp adjustment *****, I'm not sure what to do here:



Thanks!

Last edited by 427Z0SX; Nov 28, 2011 at 11:20 PM.
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Old Nov 28, 2011 | 09:41 PM
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Just to get you close....

On amp, put front & rear HI/Full switches on HIGH and set HIGH filter pot just a bit under 100. Set sub LOW filter pot just a bit above 100.

At the HU, set high pass for fronts and low pass for sub both at 100 Hz, leave equalizer on flat for now. Turn volume down to 0.

At amp, start with all GAIN ***** at 0. Adjust radio volume to 75% of max. SLOWLY turn front & rear amp gain pots up evenly until you start to hear distortion from front speakers (it will be obvious if you go too far).

I'd start will all 'bass boost' on both amp and HU at 0 or off, then turn up sub gain to blend it in with fronts (do it first at 75% volume, then verify the setting at your most common listening level). If you hit distortion and still want more boom, then adjust boost settings up to where you like it.

That will get 'volume' levels set properly so you can crank it up without having to worry about blowing anything up. Once that's set go back to HU and adjust EQ and DSP to what you think is best.
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Old Nov 28, 2011 | 11:17 PM
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Wow, lots of information there markcz. I appreciate it, thank you!
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Old Dec 9, 2011 | 09:29 AM
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Originally Posted by 427Z0SX
Finally done with the audio install. MANY thanks to Dennis for answering my noobish PMs, what a great guy. Thank you Dennis. Also want to thank all the help I got here on Audio forum, never would've been able to get through this before the internet age. Love that backup camera. I've read through the manual of the amplifier, and the head unit, so I've an idea of what I need to accomplish, just not sure on HOW to achieve it.

Do I start from within the head unit's crossover menu or from the amp?

Head unit: Kenwood 6980
Speakers: Focal 165 tweeters and woofers.
Subwoofer: Arc Audio D10
Amplifier: Arc Audio XDi 805 5 channels, bridged to 3 channels

On the crossovers, they have a switch for dB: 0, -3, -6.
I put this at -3

They also have another switch: High or Flat.
I left this at Flat

In the HU's menu:

The Frequency line is not adjustable.
The Level line is: it goes from 0 to10.
Subwoofer level: from 0 to 10, I left it at 5.

Here are photos of the amp adjustment *****, I'm not sure what to do here:



Thanks!
Question on setting the base side of the ARC audio XDi805 pictured

There are 6 dials for the sub which are:
Gain
Phase
Base boost
Boost frequency
Low

I have two 8" CDT hooked to the back channel at 2 ohms, what would be a good baseline setting. I dont care much for the deep muddy bass just a tight popping bass if that makes sense. My H/U is an x930bt

I have the gain **** that is connected with the RJ-11 mounted to the front of my bins so I can adjust on the fly.

Last edited by Rbohno; Dec 9, 2011 at 09:30 AM. Reason: spelling correction
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Old Dec 9, 2011 | 04:04 PM
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All others should be set first

Gain - start at 0, turn up to blend with fronts, or do the 75%/distortion thing then fine tune from there
Phase - try 0, switch to 180, keep on louder setting (should be 0 if connected properly)
Base boost - start at 0, turn up slowly if you think it needs more thump
Boost frequency - about half way
Low - 100Hz (or same as what your HPF are for fronts)
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Old Dec 9, 2011 | 09:43 PM
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Originally Posted by markcz
All others should be set first

Gain - start at 0, turn up to blend with fronts, or do the 75%/distortion thing then fine tune from there
Phase - try 0, switch to 180, keep on louder setting (should be 0 if connected properly)
Base boost - start at 0, turn up slowly if you think it needs more thump
Boost frequency - about half way
Low - 100Hz (or same as what your HPF are for fronts)
Hey Mark,

Thanks again will try this tomorrow.

My wife and I are only a couple of hours from Columbia, I would love the chance to meet somewhere in Columbia area and buy you a beer at some point. You are such a sport when it comes time to answer questions would like to do a real instead of one with emoticons.

Thanks

Richard
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Old Dec 10, 2011 | 05:51 PM
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Originally Posted by Rbohno
Hey Mark,

Thanks again will try this tomorrow.

My wife and I are only a couple of hours from Columbia, I would love the chance to meet somewhere in Columbia area and buy you a beer at some point. You are such a sport when it comes time to answer questions would like to do a real instead of one with emoticons.

Thanks

Richard
We can prob arrange something like that
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Old Dec 11, 2011 | 11:06 AM
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Spectrum Analyzer, most audio-install shops can do that for you. I have my own setup and use iPad "Signal Scope Pro" app software (photo attached) ...
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Old Dec 13, 2011 | 09:29 AM
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Originally Posted by Thrash
Spectrum Analyzer, most audio-install shops can do that for you. I have my own setup and use iPad "Signal Scope Pro" app software (photo attached) ...
Thats quite a setup, I would not have a clue how to use it. There is an input on the back of my h/u (x930bt) for a microphone and a setting in the a/v settings that initiates automatic eq settings "IF" the microphone is attached. The manual says "sold seperately".

The sound of some songs is incredible WHEN turned up but not as "rich" or full sounding when at a normal level with cabin closed. I mean I hear detail in songs I have never heard before but I think my tuning is still off.

I am taking our daughter who is in town visiting for a week(college student in Texas) on a father/daughter trip to Myrtle beach(shes never been there) for one night.


She arrives tomorrow
So we will be doing quite a bit of cruising and jamming so I will know better what I need to do with the system adjustments after that.
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