1. The local shop told me to buy 8 ohm subs. (These are 8" Rockford Fosgate - 2 of them at 200 RMS each.) But the amp I'm connecting to is a Lanzar 4 channel amp. I noticed on the bottom of the amp it says "for 2 or 4 ohm use only". Does this mean I cannot use the 8 ohm subs with this amp? FYI - this amp will also have a Lanzar 6.5 component speaker system (180 RMS) connected to it. The amp is 175 RMS; channels 1 & 2 can be bridged as can 3 & 4.
2. I bought a 2.4 farad Lanzar capacitor for this system which came with 4 gauge cable and a regular dist. block (not a power block). This dist. block has openings for two 4 gauge and four 8 guage cables. Earlier, I bought a Stinger fused power dist. block that allows for one 4 guage in, and two 8 gauge out. I had planned to simply run each 8 gauge cable to both amplifers in my system. With the addition of the capacitor, I am not certain how to wire this. Any suggestions?
3. RCA wiring - I'm hoping to run one cable from head unit to 4 channel amp, and daisy chain a shorter cable from this amp to the 2 channel amp. But I see the 4 channel amp has 4 pairs of RCA jacks, and the 2 channel has 2 pairs. As a result, I'm not sure exactly where to plug in the RCA cables. Any advice on this one?
4. I have a Stinger cooling fan for the 4 channel amp, as both amps are under the seat. How and where do I connect the positive and negative wires for this fan? Is there any harm in letting it run all the time?
5. I need advice on grounding both amplifiers and the capacitor. Basically this an issue because I'm trying to do this install without any drilling into the truck. Was hoping to ground to an area under the seat where the jack was mounted to the floorboard. There are 2 holes already drilled in that spot. Could all 3 be grounded here? And do I need a grounding block or can I simply use a bolt or screw to hold the wires in place?
Replies (2)
uochronos on 07/6/2004 14:10:51
i use the bolt that holds down my jump seat to ground my amps 2 of thewm a 1200watt mono and a 500watt 2 channel.... as klong as you sand the pain off where the conector touches you are ok...
if you bridge the 2 back channels of the 4 channel amp for the subs then have 2 8 ohm subs you well be ok... 2 8 ohm subs wired together properly gives a 4 ohm load....
ttocs on 07/6/2004 16:35:35
those subs would be all wrong for that amp... It would not do any harm, your amp would just not produce enough pwr at 8 ohms to properly drive the subs. Why are you using a 4 channel for the subs and a 2 channel for the rest? Normally it is the other way around.
2.) you can wire the capacitor inline on the pwr wire at any point. Just cut the pwr wire, put a ring terminal on each end and connect to the pos side of the cap, then run a ground. It is recommended that it be as close as possible to the amps but in reality you will only notice a slight difference with the cap reagardless of where it is.
3.) if you want to be able to use the balance and fader on the radio you will need 2 sets of rca's to the back. Some amps have a line out and if this is the case you that to daisy chain the sub amp. Run these wires down the opposite side of the pwr wire, and run a remote wire at the same time.
4.) I live in phoenix where it regularly gets up to 100-110, and only occasionally have a customer complain that the amp shuts off due to heat. Fans are a great place to induce noise... I would skip the fan until you start to have heat problems. Almost all amps today have thermal protection to shut the amp down in case of extreme heat....
5.) If there is an existing screw/bolt near where you plan on mounting the amp then by all means use it. Take some sandpaper and sand the paint down at that spot to ensure a solid connection. I always try to ground all the componants(deck included if you want to be anal) at the same point.
2. I bought a 2.4 farad Lanzar capacitor for this system which came with 4 gauge cable and a regular dist. block (not a power block). This dist. block has openings for two 4 gauge and four 8 guage cables. Earlier, I bought a Stinger fused power dist. block that allows for one 4 guage in, and two 8 gauge out. I had planned to simply run each 8 gauge cable to both amplifers in my system. With the addition of the capacitor, I am not certain how to wire this. Any suggestions?
3. RCA wiring - I'm hoping to run one cable from head unit to 4 channel amp, and daisy chain a shorter cable from this amp to the 2 channel amp. But I see the 4 channel amp has 4 pairs of RCA jacks, and the 2 channel has 2 pairs. As a result, I'm not sure exactly where to plug in the RCA cables. Any advice on this one?
4. I have a Stinger cooling fan for the 4 channel amp, as both amps are under the seat. How and where do I connect the positive and negative wires for this fan? Is there any harm in letting it run all the time?
5. I need advice on grounding both amplifiers and the capacitor. Basically this an issue because I'm trying to do this install without any drilling into the truck. Was hoping to ground to an area under the seat where the jack was mounted to the floorboard. There are 2 holes already drilled in that spot. Could all 3 be grounded here? And do I need a grounding block or can I simply use a bolt or screw to hold the wires in place?
Replies (2)
uochronos on 07/6/2004 14:10:51
i use the bolt that holds down my jump seat to ground my amps 2 of thewm a 1200watt mono and a 500watt 2 channel.... as klong as you sand the pain off where the conector touches you are ok...
if you bridge the 2 back channels of the 4 channel amp for the subs then have 2 8 ohm subs you well be ok... 2 8 ohm subs wired together properly gives a 4 ohm load....
ttocs on 07/6/2004 16:35:35
those subs would be all wrong for that amp... It would not do any harm, your amp would just not produce enough pwr at 8 ohms to properly drive the subs. Why are you using a 4 channel for the subs and a 2 channel for the rest? Normally it is the other way around.
2.) you can wire the capacitor inline on the pwr wire at any point. Just cut the pwr wire, put a ring terminal on each end and connect to the pos side of the cap, then run a ground. It is recommended that it be as close as possible to the amps but in reality you will only notice a slight difference with the cap reagardless of where it is.
3.) if you want to be able to use the balance and fader on the radio you will need 2 sets of rca's to the back. Some amps have a line out and if this is the case you that to daisy chain the sub amp. Run these wires down the opposite side of the pwr wire, and run a remote wire at the same time.
4.) I live in phoenix where it regularly gets up to 100-110, and only occasionally have a customer complain that the amp shuts off due to heat. Fans are a great place to induce noise... I would skip the fan until you start to have heat problems. Almost all amps today have thermal protection to shut the amp down in case of extreme heat....
5.) If there is an existing screw/bolt near where you plan on mounting the amp then by all means use it. Take some sandpaper and sand the paint down at that spot to ensure a solid connection. I always try to ground all the componants(deck included if you want to be anal) at the same point.
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