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Amplifiers
Running 2 ohm speakers parallel
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<blockquote data-quote="asilentfire" data-source="post: 7730981" data-attributes="member: 641379"><p>I just bought a <strong>JVC Arsenal KDA535</strong> head unit and <strong>JBL P560C component speakers</strong>, and I'm looking for the best amp to power them while still leaving room for a sub and full range speakers in back.</p><p></p><p>Here are the specs for my JBL P560C component set:</p><p></p><p>Power Handling, RMS: 75 Watts</p><p></p><p>Power Handling, Peak: 225 Watts</p><p></p><p>Sensitivity: 92dB</p><p></p><p>Frequency Response (±3dB): 55Hz - 23kHz</p><p></p><p>Mounting Depth: Mid/Woofer 2-1/16" Tweeter 1-3/16"</p><p></p><p>Impedance: 2 Ohms</p><p></p><p>I want these speakers to get the full 75 watts RMS.</p><p></p><p>I was thinking of getting a 4 channel amp, bridging 2 channels to a sub and running the other 2 parallel through some full range speakers to the components up front.</p><p></p><p>This is my first system and I'm sure there are many things I don't understand, but please bear with me and correct me where I am wrong.</p><p></p><p>I am looking at 2 amps; the <strong>Infinity Reference 475a</strong>:</p><p></p><p>RMS Power Output (Watts x Channels) 75 x 4</p><p></p><p>Peak Power Output (Watts x Channels) 117 x 4</p><p></p><p>Power at 2 Ohms (Watts x Channels) 90 x 4</p><p></p><p>Bridged Power (Watts x Channels) 180 x 2</p><p></p><p>Minimum Impedance Bridged 4</p><p></p><p>Minimum Impedance Unbridged 2</p><p></p><p><strong>and the Infinity Reference 5350a:</strong></p><p></p><p>RMS Power Output (Watts x Channels) 50 x 4</p><p></p><p>150 x 1</p><p></p><p>Peak Power Output (Watts x Channels) 89 x 4</p><p></p><p>Power at 2 Ohms (Watts x Channels) 60 x 4</p><p></p><p>Bridged Power (Watts x Channels) 120 x 2</p><p></p><p>Minimum Impedance Bridged 4</p><p></p><p>Minimum Impedance Unbridged 2</p><p></p><p>I would like to use the 4 channel 475a amp as I have a better price on it, but I can get either one fairly cheap.</p><p></p><p>I want to reach close to 75 RMS to the front speakers, and I'm not sure the 4 channel can do that.</p><p></p><p><strong><span style="font-size: 12px">My hope is that I can run the wire parallel through some full range speakers in back at around 60-75 RMS at 4 ohms and still have enough juice left over to give the front components 75 RMS at 2 ohms.</span></strong> I have to do this because I need the other 2 channels to power an amp.</p><p></p><p>The front components take power priority, I would be okay with the back speakers only getting 35 RMS if need be.</p><p></p><p>Well that's it, please let me know if the amp fits the bill,</p><p></p><p>THANKS!</p></blockquote><p></p>
[QUOTE="asilentfire, post: 7730981, member: 641379"] I just bought a [B]JVC Arsenal KDA535[/B] head unit and [B]JBL P560C component speakers[/B], and I'm looking for the best amp to power them while still leaving room for a sub and full range speakers in back. Here are the specs for my JBL P560C component set: Power Handling, RMS: 75 Watts Power Handling, Peak: 225 Watts Sensitivity: 92dB Frequency Response (±3dB): 55Hz - 23kHz Mounting Depth: Mid/Woofer 2-1/16" Tweeter 1-3/16" Impedance: 2 Ohms I want these speakers to get the full 75 watts RMS. I was thinking of getting a 4 channel amp, bridging 2 channels to a sub and running the other 2 parallel through some full range speakers to the components up front. This is my first system and I'm sure there are many things I don't understand, but please bear with me and correct me where I am wrong. I am looking at 2 amps; the [B]Infinity Reference 475a[/B]: RMS Power Output (Watts x Channels) 75 x 4 Peak Power Output (Watts x Channels) 117 x 4 Power at 2 Ohms (Watts x Channels) 90 x 4 Bridged Power (Watts x Channels) 180 x 2 Minimum Impedance Bridged 4 Minimum Impedance Unbridged 2 [B]and the Infinity Reference 5350a:[/B] RMS Power Output (Watts x Channels) 50 x 4 150 x 1 Peak Power Output (Watts x Channels) 89 x 4 Power at 2 Ohms (Watts x Channels) 60 x 4 Bridged Power (Watts x Channels) 120 x 2 Minimum Impedance Bridged 4 Minimum Impedance Unbridged 2 I would like to use the 4 channel 475a amp as I have a better price on it, but I can get either one fairly cheap. I want to reach close to 75 RMS to the front speakers, and I'm not sure the 4 channel can do that. [B][SIZE=12px]My hope is that I can run the wire parallel through some full range speakers in back at around 60-75 RMS at 4 ohms and still have enough juice left over to give the front components 75 RMS at 2 ohms.[/SIZE][/B] I have to do this because I need the other 2 channels to power an amp. The front components take power priority, I would be okay with the back speakers only getting 35 RMS if need be. Well that's it, please let me know if the amp fits the bill, THANKS! [/QUOTE]
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