Do you have to use the ground wire in the high input, or is it fine to use the one next to the power wire?
Replies (6)
swez on 01/14/2006 17:08:07
Not sure I understand your question???
If you are using the high signal (speaker wire inputs) to feed an amp audio in signals, use the hot and return speaker leads ONLY!
Most newer vehicles have "isolated grounding" for speakers from the HU. It's not the same "reference" ground as the chassis, body or Neg on BAT.
In short, DO NOT USE THE AMP CHASSIS GROUND AS YOUR SPEAKER INPUT RETURN PATH. Danger lurks close to damaging HU amps at worst, creating ground loop noises a the very least.
Swez
strife on 01/14/2006 23:52:16
next to the speaker wire inputs theres another terminal that looks the same, but it says ground on it. So the chassis ground is to ground the amp, but what that other terminal for? Also, the hifonics bx2005d is a class d mono, but it has two positive and negative outputs. If I use all of these to hook up two subs, is that the same as parallel wiring, or do I have to hook up both subs to only one set of outputs? Like a bridged connection or something?
swez on 01/15/2006 01:32:18
http://www.maxxsonics.net/manuals/hifonics/pdfs/hfBRTS_BX500D-2200D.pdf
This doc, on page 3, gives a wiring diagram and layout for the BX series amps. The BX 2005D is not specifically listed here, but the general layout should be the same. Have a look and tell me what terminal is of concern and how it is labled on your amp VS the .pdf wiring layout.
Swez
strife on 01/15/2006 02:15:26
The speaker terminals are the same on the amp as on the layout. So if I connect one sub to one set of terminals and the other sub to the other set, it'd be the same as wiring those subs parallel, correct? Also, theres no switch to turn the subsonic filter off. If I tune it all the way down does it mean it's deactivated, because it says from 15 hertz to 35 hertz.
swez on 01/15/2006 11:52:37
Quote: "The speaker terminals are the same on the amp as on the layout. So if I connect one sub to one set of terminals and the other sub to the other set, it'd be the same as wiring those subs parallel, correct"? Yes, that is correct!
About the SSF, if you go sealed, set the SSF at 35 Hz. That will block any lows that won't be heard much anyway, and wastes less power too.
If you go ported, the SSF is set to the port tuning frequency used. This protects the subs from excess heat and other mechanical failures.
Swez
ttocs on 01/15/2006 16:20:19
line out converters(loc's) will often have an extra ground wire on them. I was always told that it could be used to help reduce noise, if there is any. If there is no noise I would just insulate it and leave it alone.
Replies (6)
swez on 01/14/2006 17:08:07
Not sure I understand your question???
If you are using the high signal (speaker wire inputs) to feed an amp audio in signals, use the hot and return speaker leads ONLY!
Most newer vehicles have "isolated grounding" for speakers from the HU. It's not the same "reference" ground as the chassis, body or Neg on BAT.
In short, DO NOT USE THE AMP CHASSIS GROUND AS YOUR SPEAKER INPUT RETURN PATH. Danger lurks close to damaging HU amps at worst, creating ground loop noises a the very least.
Swez
strife on 01/14/2006 23:52:16
next to the speaker wire inputs theres another terminal that looks the same, but it says ground on it. So the chassis ground is to ground the amp, but what that other terminal for? Also, the hifonics bx2005d is a class d mono, but it has two positive and negative outputs. If I use all of these to hook up two subs, is that the same as parallel wiring, or do I have to hook up both subs to only one set of outputs? Like a bridged connection or something?
swez on 01/15/2006 01:32:18
http://www.maxxsonics.net/manuals/hifonics/pdfs/hfBRTS_BX500D-2200D.pdf
This doc, on page 3, gives a wiring diagram and layout for the BX series amps. The BX 2005D is not specifically listed here, but the general layout should be the same. Have a look and tell me what terminal is of concern and how it is labled on your amp VS the .pdf wiring layout.
Swez
strife on 01/15/2006 02:15:26
The speaker terminals are the same on the amp as on the layout. So if I connect one sub to one set of terminals and the other sub to the other set, it'd be the same as wiring those subs parallel, correct? Also, theres no switch to turn the subsonic filter off. If I tune it all the way down does it mean it's deactivated, because it says from 15 hertz to 35 hertz.
swez on 01/15/2006 11:52:37
Quote: "The speaker terminals are the same on the amp as on the layout. So if I connect one sub to one set of terminals and the other sub to the other set, it'd be the same as wiring those subs parallel, correct"? Yes, that is correct!
About the SSF, if you go sealed, set the SSF at 35 Hz. That will block any lows that won't be heard much anyway, and wastes less power too.
If you go ported, the SSF is set to the port tuning frequency used. This protects the subs from excess heat and other mechanical failures.
Swez
ttocs on 01/15/2006 16:20:19
line out converters(loc's) will often have an extra ground wire on them. I was always told that it could be used to help reduce noise, if there is any. If there is no noise I would just insulate it and leave it alone.
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