Harley boom audio speakers
Outstanding HDF Member
Joined: Jun 2012
Posts: 2,248
Likes: 7
From: Atlanta, Georgia
Dont even waste your time or money trying to figure it out. PBR300x4 is not the amp you want. If FM is no issue, try the SS PN4.520. If FM reception is an issue, try the PBR300x2 and use it to run 4 speakers if you must. I can tell you from experience...the PBR300x2 coupled with the kappas will make one hell of a sound experience.
Outstanding HDF Member
Joined: Jun 2012
Posts: 2,248
Likes: 7
From: Atlanta, Georgia
Yes, you run 4 speakers off that amp. If the speakers are 4 ohm, you run them in parallel (both "+" on the speaker to the "+" on the amp). If the speakers are 2 ohm, you run them in series ("+" on amp to "+" on speaker one..."-" on speaker one to "+" on speaker 2..."-" on speaker 2 to "-" on the amp). This setup of course is done to each channel. So, your two right speakers will go to the right side of the amp and vice versa for the left side. Or, you can get a 4 channel amp and just plug each speaker into its own channel. I have done both and I havent had any issues with either method.
Intermediate
Joined: Oct 2011
Posts: 27
Likes: 0
From: Slidell, LA
I believe that the Infinity's are 2 ohm speakers so if you go with the pbr300x2 (a great amp choice) you will need 1 amp for each pair. Unless like Eshaw mentioned, the PN4.520 would be a great choice for a 4 channel amp if FM signal isn't a priority. FM loss doesn't happen to everyone, but it does to some.
Outstanding HDF Member
Joined: Jun 2012
Posts: 2,248
Likes: 7
From: Atlanta, Georgia
I believe that the Infinity's are 2 ohm speakers so if you go with the pbr300x2 (a great amp choice) you will need 1 amp for each pair. Unless like Eshaw mentioned, the PN4.520 would be a great choice for a 4 channel amp if FM signal isn't a priority. FM loss doesn't happen to everyone, but it does to some.
Outstanding HDF Member
Joined: Mar 2009
Posts: 2,930
Likes: 4
From: OHIO......UGH !!
Is FM radio a deal breaker ??
Trending Topics
Outstanding HDF Member
Joined: Jun 2012
Posts: 2,248
Likes: 7
From: Atlanta, Georgia
Actually it would be about 90 watts per speaker. You know those PBR300x2s consistently put out about 180-190 watts per channel...even tho they're only rated at 150 per channel. Of course im talking 2 ohm. Is my math incorrect???
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Outstanding HDF Member
Joined: Mar 2009
Posts: 2,930
Likes: 4
From: OHIO......UGH !!
Yes, incorrect....if you wire them in series, the load is 4 ohm. The PBR 300/2 only puts out 100 watts at 4 ohm, divided by 2 speakers , = 50 watts per channel, give or take a few watts !
Two of the PBR 2 channel amps would be IDEAL !!
Two of the PBR 2 channel amps would be IDEAL !!