CW B52 tuning questions
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Joined: Aug 2013
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From: Ottawa, Canada
CW B52 tuning questions
I have install my b52 amp this afternoon. i have read somewhere that the gain should be just before 12 o'clock and somewhere else to adjust it at 20 Vac with a DMM. It's not the same spot at all. The 12 o'clock it is more like 38 Vac. So where is the right spot?
Also, where you set your freq ****? (your clock position please)
Bike: 2015 FLTRXS
Speaker: Kappa 62.11
BT 355
Volume at 13 dots for DMM method with 1000hz 0 db test tone
Any input will be appreciate
Thank's
Also, where you set your freq ****? (your clock position please)
Bike: 2015 FLTRXS
Speaker: Kappa 62.11
BT 355
Volume at 13 dots for DMM method with 1000hz 0 db test tone
Any input will be appreciate
Thank's
Road Warrior
Joined: Dec 2012
Posts: 1,690
Likes: 246
From: Lakeville, MN
Sounds like your plan is to deliver 200W to the Kappas. So far so good. Your VAC is accurate at 20. If you are confident that you're following procedure with your DMM and testing your left side and right side and they are at 20, you've hit the mark. What source are you using for your test tone? USB or phone? If you want to double check your work, download a 1000Hz -5db test tone and set the gains again. If you're using a phone, check the output volume of the phone. Best bet for consistency is USB because you're taking source volume out of the mix.
If you know you're right on the DMM, trust the numbers not the position on the clock where someone said it should be set to.
If you know you're right on the DMM, trust the numbers not the position on the clock where someone said it should be set to.
Seasoned HDF Member
Joined: Jan 2013
Posts: 10,637
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From: Lake, Ms
The Freq dial is only used in HPF or LPF mode. You should be dialing in your gains with the switch set to FLAT. If you end up using the HPF (high pass filter) you'll want to set the Freq dial between 80-85. It's not marked but it should be close to the 9 o'clock position on the dial.
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From: Ottawa, Canada
ok so i try to adjust my gain today after reading your suggestions
1-VAC # on right side set at 20, got 25 on the left. That's with the 1000Hz 0db, filter set flat.
2- Try the 1000Hz -5db tone, set at 20VAC on right side, still have a different # on left.
Next i put it back the 1000Hz 0db and check the VAC again, now i'm in the 30+VAC.
One thing for sure, IT'S LOUDDD.
Should i try to lower the gain on the BT355 on the left to balance the VAC # on both side?
I have read on Kicker site that: " 0dBFS: Designed for audiophile applications to give you distortion free audio output with the most dynamic range. -5dBFS: Designed for normal/daily applications, there will be less dynamic range but higher potential audio output levels. With this set up you can get some occasional clipping from the amplifier. "
So i'm a bit confuse. Wich one to use to be on the safe side?
Yours help it is much appreciated
1-VAC # on right side set at 20, got 25 on the left. That's with the 1000Hz 0db, filter set flat.
2- Try the 1000Hz -5db tone, set at 20VAC on right side, still have a different # on left.
Next i put it back the 1000Hz 0db and check the VAC again, now i'm in the 30+VAC.
One thing for sure, IT'S LOUDDD.
Should i try to lower the gain on the BT355 on the left to balance the VAC # on both side?
I have read on Kicker site that: " 0dBFS: Designed for audiophile applications to give you distortion free audio output with the most dynamic range. -5dBFS: Designed for normal/daily applications, there will be less dynamic range but higher potential audio output levels. With this set up you can get some occasional clipping from the amplifier. "
So i'm a bit confuse. Wich one to use to be on the safe side?
Yours help it is much appreciated
Outstanding HDF Member
Joined: Nov 2014
Posts: 2,267
Likes: 135
From: Midland Twp, MI
Question for the guys helping here.
Could the difference be made up on the BT355 gains? Or is a few watts even with worrying about?
Could the difference be made up on the BT355 gains? Or is a few watts even with worrying about?
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Joined: Aug 2013
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From: Ottawa, Canada
I adjust the gain on the BT355 to match my VAC# on both side. Now i have 20.3 left and right.
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