amp cutting off

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kwguy

Member - Posts: 19

Joined: January 03, 2009

Location: Texas, United States

Posted: May 17, 2009 at 7:16 PM / IP Logged

hey guys i have a 2008 silverado crew cab and i built a box for two 10'' kicker l7's under the seat and to me it sound preaty good eventhough allot of people dont share my oppinion, my problkem is that if i cut of my equalizer to where i dont have any mids only the subs and i start raising the volume it starts hitting harder but gets to a point were the amp protects itself all i do is turn off the hu and power it back on and works but it does that on some bass songs or when i push it amp cutting off -- posted image.

do yaall think the amp is not really the 4000 watt they sold me and i need more power http://www.champaudio.net/merlon_amplifier.htm the amp i have is the 1900pro and i think thats my problem if i upgrade to a db drive platinum 200watt amp will that fix my problem?

thank in advance

i am an idiot

Platinum - Posts: 13,673

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: May 17, 2009 at 7:21 PM / IP Logged

Do you have any idea of the impedance of the speakers? Are they single or dual voice coil woofers? Is it a 1 or 2 channel amplifier? If it is a 2 channel amp, did you bridge the amp? Did you wire the speakers in series or parallel?

kwguy

Member - Posts: 19

Joined: January 03, 2009

Location: Texas, United States

Posted: May 17, 2009 at 7:35 PM / IP Logged

Option 1 (parallel/parallel) = 1 ohm load

Voice coils wired in parallel, speakers wired in parallel

Recommended Amplifier: Stable at 1 ohm mono

that is the way i wired the speakers thy are 4 ohm dvc and the amp is 1 ohm stable with 2000rms 400max on the output 1 channel

i am an idiot

Platinum - Posts: 13,673

Joined: September 21, 2006

Location: Louisiana, United States

Posted: May 17, 2009 at 8:09 PM / IP Logged

Have you used a volt meter to see how low the voltage is dropping when the amp is cutting off? With the amp playing just below the level that makes it cut off, Meter leads on the power and ground terminals of the amp. Take note of the lowest reading you see. Let us know what you find out.

kwguy

Member - Posts: 19

Joined: January 03, 2009

Location: Texas, United States

Posted: May 18, 2009 at 11:33 PM / IP Logged

ok ill try that this weekend and now that you say it it makes sense because the amp draw allot of current even my parking lights dim when the radio is playing and if im stoped idleling for a while the voltmeter on my truck drops from almost 14 volts to like 10 and it does not sound as loud

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: May 18, 2009 at 11:47 PM / IP Logged

No, that's certainly not a true 4000 watt amp, and it may not really be 1-ohm stable. That is a 4-channel amp? Do you have any other information on it other than that sketchy web page? What channels do you have the speakers connected to?

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i am an idiot

Platinum - Posts: 13,673

Joined: September 21, 2006

Location: Louisiana, United States

Posted: May 19, 2009 at 6:25 AM / IP Logged

Did you read the owners manual, especially the part about parallel operation? Are there jumpers that have to be moved, or is it done with switches?

alaisneo

Member - Posts: 27

Joined: May 18, 2009

Location: New York, United States

Posted: May 19, 2009 at 7:56 AM / IP Logged

well the amps 4000 watts max not rms..that you have to keep in mind. That 10 is a great speaker...match it with a great amp....get a 1000d mono block or something that will pound hardcore. I always like to go digital with subwoofers.

I love sound

kwguy

Member - Posts: 19

Joined: January 03, 2009

Location: Texas, United States

Posted: May 19, 2009 at 12:57 PM / IP Logged

sorry if i confused you with that info the amp is only one channel suposed to be 4000 w max and like 1900 rms and it does say it is 1 ohm stable

merlon_audio

Member - Posts: 4

Joined: April 20, 2009

Location: Texas, United States

Posted: June 11, 2009 at 10:05 AM / IP Logged

Hey, I personally Have one of these Amps in my car running at a .5 ohm load in my car on two of the Merlon Audio 12" M7 2ohm DVC in a ventented box. its loud and I was amazed that it actualy played at .5 ohms. I resently metered it and it was 143 on the dash. Check the length of your ground, the ohm load on each voice coil of the woofer and then the voltage of the amp while its playing to its max. Also make sure your using true 0 gauge wire that thing sucks some power.

Merlon Audio

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