Do I need line level converters?
Thread Starter
Driver School Candidate
Joined: May 2001
Posts: 33
Likes: 0
I'm replacing the stock SC300 premium system amplifier with a Precision Power 6 channel amp (PC650). Can I just splice an RCA plug onto the existing amplifier inputs or do I need to add line level converters? The PC650 does not accept high level inputs. I think another way of asking this question is, are the line inputs into the amplifier considered pre-amp outs from the stock head unit?
I'm familiar with the 933005spd stereo hack - great help!!
Thanks in advance,
Kevin
I'm familiar with the 933005spd stereo hack - great help!!
Thanks in advance,
Kevin
Lexus Test Driver
Joined: Feb 2001
Posts: 1,199
Likes: 1
From: Alabama
LLC's
Kevin - I'd opt for the LLC over just splicing into the factory head - signal will be cleaner because U'll be actually changing the higher speaker level output signal into a lower line level one. Also, U can get some with adjustable volume controls to help fine tune things. I believe Audio Control is the favorite amongst the members here.
Thread Starter
Driver School Candidate
Joined: May 2001
Posts: 33
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Navone N-914V
Thanks. I noticed that the amp does have a -12 db attentuation button for when using head unit leads but I'm guessing you still think I should use the LLC. I've seen in a previous post that Tom has used a Navone N-914V. Anybody have any information/thoughts on this product?
Rookie
Joined: Jun 2001
Posts: 53
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The navone are very good down converters, I think there number is 800 669-6139, ask for Vicky she has worked there for around 7-8 years and is very helpfull.
The idea is to get as much input voltage as possibe that way you can turn down the gain on the amp so you have a lower noise floor, it will not be any cleaner in the sound (how can a down converter clean up the sound?), just safer. I think most amps reference the sheild of the rca to ground so the down converter will isolate the two.
A side note If you ppi amp could accept around 10-11 volts(25-30watts out of radio) and had balanced inputs you could use the speaker outputs and not worry about finding the down converter- I dont think it does, this would be a very nice setup but most amps do not have balanced inputs. Hope this helps
The idea is to get as much input voltage as possibe that way you can turn down the gain on the amp so you have a lower noise floor, it will not be any cleaner in the sound (how can a down converter clean up the sound?), just safer. I think most amps reference the sheild of the rca to ground so the down converter will isolate the two.
A side note If you ppi amp could accept around 10-11 volts(25-30watts out of radio) and had balanced inputs you could use the speaker outputs and not worry about finding the down converter- I dont think it does, this would be a very nice setup but most amps do not have balanced inputs. Hope this helps
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