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pioneer GM-4000F amp, 6 1/2 component set


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choover567 
Copper - Posts: 51
Copper spacespace
Joined: June 30, 2005
Location: Washington, United States
Posted: July 01, 2005 at 12:45 PM / IP Logged  
hey i have a 6 1/2 component set. audiobahn abc6003q. two 6 1/2, two 4s, and two tweeters. they are i think 360 watts rms or about that. i am running a crappy pioneer GM-4000F, 4 channel 300 watts. i get distortion in speakers cause the amp isnt powerful enough. i dont understand howmuch power i need in an amp for these speakers. this is my guess, a 1000 watt 4 channel amp, 250x4 output. sound good? or am i wrong?
Chris - 97 Toyota 4Runner
Alpine CDA-9884
Kicker SX1250.1
Kicker 15" L7
dwarren 
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Joined: December 03, 2004
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Posted: July 01, 2005 at 12:47 PM / IP Logged  
How are you setting the gain?
choover567 
Copper - Posts: 51
Copper spacespace
Joined: June 30, 2005
Location: Washington, United States
Posted: July 01, 2005 at 12:49 PM / IP Logged  
gains all the way up
Chris - 97 Toyota 4Runner
Alpine CDA-9884
Kicker SX1250.1
Kicker 15" L7
dwarren 
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Joined: December 03, 2004
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Posted: July 01, 2005 at 12:55 PM / IP Logged  
I see, that may be your problem. Do you know how to set your gains?
You are going to blow your speakers real soon. That amp should be fine for those speakers. Try this first and then decide if you want to upgrade your amp.
www.bcae1.com look to the left and select #63 "setting gains"
choover567 
Copper - Posts: 51
Copper spacespace
Joined: June 30, 2005
Location: Washington, United States
Posted: July 01, 2005 at 1:01 PM / IP Logged  
iv had it in my car for a long time, never blown, just always had distortion when i want to get it loud, but i will try this. thanks =)
Chris - 97 Toyota 4Runner
Alpine CDA-9884
Kicker SX1250.1
Kicker 15" L7
modena0 
Copper - Posts: 85
Copper spacespace
Joined: July 18, 2004
Location: United States
Posted: July 05, 2005 at 10:58 AM / IP Logged  
i had that same amp at one point. the gain should be substantially lower than full. i have a Premier deck so the preouts were high, but i still didnt go much past 15% with the gain on a not so great set of pioneer 4x6s and i never really got any distortion. either way if you crank the gain on that amp you will soon cook the speakers, because it isnt a very high wattage. that 300W is peak if i am not mistaken, so you'll just be clipping real bad
nathan_454 
Member - Posts: 16
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Joined: July 05, 2005
Location: United States
Posted: July 05, 2005 at 11:15 AM / IP Logged  
so if im understanding this right. you should set your gain at approximately whatever voltage your deck puts out... if its puts out 4.5 volts then set the gain at 4.5 volts on the amp correct?
MY System, Pioneer Owns...Thanx Gabe
HU: DEH-P770MP
Fronts: TS-C160R
Rears :TS-A6995
Subs: 2x TS-W106C
Sub Amp: GM-7150M
4 CH: GM-6150F
Optik 
Copper - Posts: 53
Copper spacespace
Joined: March 16, 2005
Location: United States
Posted: July 05, 2005 at 11:18 AM / IP Logged  
I do not think you are going to blow your speakers by under powering them. You will blow them with your gain set all the way up.
modena0 
Copper - Posts: 85
Copper spacespace
Joined: July 18, 2004
Location: United States
Posted: July 05, 2005 at 12:41 PM / IP Logged  
yeah, you are typically supposed to set it to your voltage, but i have yet to find an output voltage that is exactly what it claims to be. my premier claims to be 6.5v out, but i have to raise the gain slightly for optimum performance. typically people say set the deck to 70% volume and play with the gain until you get loud but not distorted audio.

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