The amp I'm looking at is a Hifonics bx2005d. Is subsonic filter the same thing as high pass? And a remote control just controls the volume and doesn't change the actual bass settings, correct? Is the phase setting the per octave thing (little unclear about this anyway)? There's something that says balanced input, is this for mono systems? I don't see a remote wire input, so is it safe to say that I need to get rca cables with it built in? And I think that's it (hopefully). thnx in advance.
Replies (9)
strife on 01/4/2006 21:24:29
Also what should the phase and such be? I have 2 Audiobahn Alum12Q's hooked up to the hifonics. This is weird but something I thought of, if you have two subs can you have one play the right signal and one play the left signal? Also the two outputs aren't for left and right signals are they? They're just positive and negative right?
strife on 01/5/2006 10:51:38
I also have another amp powering just highs, so how would I set gain and such for this? I have another high that is directly connected to the head unit, is there any way to set a gain for this to prevent overpowering the speakers, or should they be alright by themselves?
ryan2 on 01/5/2006 11:33:40
Subsonic Filter= its used to block the lower freq. to ur sub if you have a ported box. Lets say you have ur 2 Audiobahn subs in a ported box tuned to 30hz. Well if you play music thats a constant 20hz and u dont have a subsonic filter set to 30hz you can damage ur sub.
Remote Control= Its used to cahnge the bass boost on ur amp from the drivers seat, so you dont have to go to ur amp and change it. We dont recommend using bass boost at all or use very little if you have too. Someone else can give u more detail on bass boost.
Phase Setting= When ur subs are in phase(wired correctly + to +, - to -) your subs are in phase. Sometimes you might of wired them backwards or they are wired correctly you can try the phase switch and that might fix ur problem. Not exactly sure how it does this im assuming it changes + on amp to - so it makes ur wiring correct??
Balance Input= ????
No remote wire input on amp= are you sure?
strife on 01/5/2006 11:49:20
I think the balanced input is if you want to play your speakers mono, for the remote wire, as far as I can tell I didn't see an input.
P0werLifter on 01/5/2006 13:55:12
~High Pass Crossovers does exactly what the name implies, It allows all frequencies ABOVE a set point through, while a
~Low Pass Crossover allows all frequencies BELOW a set point through.
A high pass Xover could be used as a SubSonic Filter if it had the ability to go down to the frequency needed.
As far (bass) remote, This only controls the bass boost. Do not use this excessivly as it can damage the woofer by causing the amplifier to send a clipped signal if set to high.
Not sur what the Balanced Input is, is this a mono amplifier (1 channel)
-PL
Victor on 01/5/2006 15:52:18
Well,,
As defined by PL,
A high pass crossover lets only those Frequencies pass which are above the set point..
for ex. if u set the high pass at 3000Hz, it lets only frequency above that to pass..
In basics a Subsonic filter is a High pass filter..
The only difference is that a subsonic filter is designed to cut off very low frequencies , which are below the audible range of a human being..
Victor..
strife on 01/6/2006 00:44:02
Do running components off an amp's crossover and it's passive crossover reduce the signals quality?
Ash on 01/6/2006 06:45:20
It is normal to use a amp's active highpass crossover to limit bass to the mid/midbass on the component set. From there, the passive crossover included with the set will separate frequencies between the mid and tweet. Use in this way, will in fact, increase power handling some and improve midrange quality for the mid will not be trying to reproduce lower octave notes that will hinder upper range definition.
Phase adjustment on amps to some is a bit confusing. However phase adjustment on amps is built to counteract the cancellation of bass waves at the listening position due to woofer mounting location. In a nutshell it is the same result as when you see some facing the subs backwards and/or positioned to the most rear of the trunk/hatch area. It is not the same as having the subs wired out of phase with each other or the rest of the system. Though it is easier with the simple box location method, there are times when the box cannot be repositioned or the phase is not exactly 180 degrees out of phase. This is where a amps "variable" phase adjustment has it's most use. Some amps will only have a 0 and 180 degree position. These are not as useful as the infinite type (0 thru 180). There are also aftermarket phase adjustment components that can be added to systems that don't include one. You shouldn't worry much about either unless you system exhibits problems within that realm.
swez on 01/7/2006 22:11:14
Balanced line inputs are great if your amp and HU have that feature.
These use a 2 wire system where the ground and center cables, both carry signal inputs to the next device. (but each signal is 180 out of phase. This makes them additive sums and higher output strength.
Balanced systems are superior in noise rejection and use isolated grounds that are not the same as a typical chassis ground systems.
Have a look here for more details:
http://www.bcae1.com/audioiso.htm
Swez
Replies (9)
strife on 01/4/2006 21:24:29
Also what should the phase and such be? I have 2 Audiobahn Alum12Q's hooked up to the hifonics. This is weird but something I thought of, if you have two subs can you have one play the right signal and one play the left signal? Also the two outputs aren't for left and right signals are they? They're just positive and negative right?
strife on 01/5/2006 10:51:38
I also have another amp powering just highs, so how would I set gain and such for this? I have another high that is directly connected to the head unit, is there any way to set a gain for this to prevent overpowering the speakers, or should they be alright by themselves?
ryan2 on 01/5/2006 11:33:40
Subsonic Filter= its used to block the lower freq. to ur sub if you have a ported box. Lets say you have ur 2 Audiobahn subs in a ported box tuned to 30hz. Well if you play music thats a constant 20hz and u dont have a subsonic filter set to 30hz you can damage ur sub.
Remote Control= Its used to cahnge the bass boost on ur amp from the drivers seat, so you dont have to go to ur amp and change it. We dont recommend using bass boost at all or use very little if you have too. Someone else can give u more detail on bass boost.
Phase Setting= When ur subs are in phase(wired correctly + to +, - to -) your subs are in phase. Sometimes you might of wired them backwards or they are wired correctly you can try the phase switch and that might fix ur problem. Not exactly sure how it does this im assuming it changes + on amp to - so it makes ur wiring correct??
Balance Input= ????
No remote wire input on amp= are you sure?
strife on 01/5/2006 11:49:20
I think the balanced input is if you want to play your speakers mono, for the remote wire, as far as I can tell I didn't see an input.
P0werLifter on 01/5/2006 13:55:12
~High Pass Crossovers does exactly what the name implies, It allows all frequencies ABOVE a set point through, while a
~Low Pass Crossover allows all frequencies BELOW a set point through.
A high pass Xover could be used as a SubSonic Filter if it had the ability to go down to the frequency needed.
As far (bass) remote, This only controls the bass boost. Do not use this excessivly as it can damage the woofer by causing the amplifier to send a clipped signal if set to high.
Not sur what the Balanced Input is, is this a mono amplifier (1 channel)
-PL
Victor on 01/5/2006 15:52:18
Well,,
As defined by PL,
A high pass crossover lets only those Frequencies pass which are above the set point..
for ex. if u set the high pass at 3000Hz, it lets only frequency above that to pass..
In basics a Subsonic filter is a High pass filter..
The only difference is that a subsonic filter is designed to cut off very low frequencies , which are below the audible range of a human being..
Victor..
strife on 01/6/2006 00:44:02
Do running components off an amp's crossover and it's passive crossover reduce the signals quality?
Ash on 01/6/2006 06:45:20
It is normal to use a amp's active highpass crossover to limit bass to the mid/midbass on the component set. From there, the passive crossover included with the set will separate frequencies between the mid and tweet. Use in this way, will in fact, increase power handling some and improve midrange quality for the mid will not be trying to reproduce lower octave notes that will hinder upper range definition.
Phase adjustment on amps to some is a bit confusing. However phase adjustment on amps is built to counteract the cancellation of bass waves at the listening position due to woofer mounting location. In a nutshell it is the same result as when you see some facing the subs backwards and/or positioned to the most rear of the trunk/hatch area. It is not the same as having the subs wired out of phase with each other or the rest of the system. Though it is easier with the simple box location method, there are times when the box cannot be repositioned or the phase is not exactly 180 degrees out of phase. This is where a amps "variable" phase adjustment has it's most use. Some amps will only have a 0 and 180 degree position. These are not as useful as the infinite type (0 thru 180). There are also aftermarket phase adjustment components that can be added to systems that don't include one. You shouldn't worry much about either unless you system exhibits problems within that realm.
swez on 01/7/2006 22:11:14
Balanced line inputs are great if your amp and HU have that feature.
These use a 2 wire system where the ground and center cables, both carry signal inputs to the next device. (but each signal is 180 out of phase. This makes them additive sums and higher output strength.
Balanced systems are superior in noise rejection and use isolated grounds that are not the same as a typical chassis ground systems.
Have a look here for more details:
http://www.bcae1.com/audioiso.htm
Swez
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