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<blockquote data-quote="Blake Vandercar" data-source="post: 8676331" data-attributes="member: 677153">Basically, I think the lows are lacking on my 6.5&quot; woofers, and the sound quality isn&#039;t at all what I was hoping for overall. In addition, there&#039;s a slight hiss from the tweeters, which I know always occurs at some level when no music is playing-- but you can hear it from 3 feet away which is a slight issue.Here&#039;s my setup. I&#039;ll leave out things such my subwoofer, and everything up to the signal path of the 4ch amplifier since using a different, non-HU input to the amp produces the same result:Front Speakers (5-60W RMS): Rockford Fosgate P165-SE Punch 6.5&quot; Component Speaker System with External Crossover4ch Amp: Kicker KEY180.4 4x45w 4-Ch Full-Range Smart AmpThe speakers frequency range is 43 Hz to 20 kHz so although my sub does most of the work on the low end, I think my woofers should pick up some of the slack on the upper low end.I&#039;m using terminal blocks like this in 2 locations in the output speaker signal chain:<img src="https://media.rs-online.com/t_large/F7638122-01.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />, as well as wire taps like this in 2 locations :<img src="https://ae01.alicdn.com/kf/HTB1ze1OOFXXXXb_aXXXq6xXFXXXl/22-18AWG-Female-TTap-Male-Insulated-Connector-Wire-Terminals-Quick-splice-Disconnect-Combo-Tips10-25-50pcsMale.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />is it possible these are decreasing sound quality at a significant level? I could replace them with wire nuts or solder, but would that make the world of difference?Also, I tried another amp, the Rockford Fosgate R300X4 Prime 4-Channel Amplifier, to isolate the problem to the amp-- but nope, no improvement in SQ.</blockquote>

[QUOTE="Blake Vandercar, post: 8676331, member: 677153"] Basically, I think the lows are lacking on my 6.5" woofers, and the sound quality isn't at all what I was hoping for overall. In addition, there's a slight hiss from the tweeters, which I know always occurs at some level when no music is playing-- but you can hear it from 3 feet away which is a slight issue. Here's my setup. I'll leave out things such my subwoofer, and everything up to the signal path of the 4ch amplifier since using a different, non-HU input to the amp produces the same result: Front Speakers (5-60W RMS): Rockford Fosgate P165-SE Punch 6.5" Component Speaker System with External Crossover 4ch Amp: Kicker KEY180.4 4x45w 4-Ch Full-Range Smart Amp The speakers frequency range is 43 Hz to 20 kHz so although my sub does most of the work on the low end, I think my woofers should pick up some of the slack on the upper low end. I'm using terminal blocks like this in 2 locations in the output speaker signal chain: [IMG]http:////applications/core/interface/imageproxy/imageproxy.php?img=https://media.rs-online.com/t_large/F7638122-01.jpg&key=45e98ab6e209d7706c2157bd802c0d6a3982c72ab2107d1db0764154d4a41bcd[/IMG] , as well as wire taps like this in 2 locations : [IMG]http:////applications/core/interface/imageproxy/imageproxy.php?img=https://ae01.alicdn.com/kf/HTB1ze1OOFXXXXb_aXXXq6xXFXXXl/22-18AWG-Female-TTap-Male-Insulated-Connector-Wire-Terminals-Quick-splice-Disconnect-Combo-Tips10-25-50pcsMale.jpg&key=fca50efb87cfc70b93337064689bf6a7e9fc177a79571ecb6ba24c8b6fe8eb28[/IMG] is it possible these are decreasing sound quality at a significant level? I could replace them with wire nuts or solder, but would that make the world of difference? Also, I tried another amp, the Rockford Fosgate R300X4 Prime 4-Channel Amplifier, to isolate the problem to the amp-- but nope, no improvement in SQ. [/QUOTE]

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