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SpeakerPower Torpedo SP1-4000 Plate Amp
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<blockquote data-quote="Langston Holland" data-source="post: 33517" data-attributes="member: 171"><p>Re: Great Info - Thanks</p><p></p><p>Hi Fernando:</p><p></p><p>> 1) Can 1 SP1-4000 power 2 TH-1118s? or am I asking too much</p><p>></p><p>> 2) How easy is the drop in replacement that you mention?</p><p></p><p>The SP1-4000 would be very comfortable with the 2Ω load presented by a pair of TH118's and in fact that's what the designer was thinking when he installed the NL4 output on the module. Under severe low frequency loads you may find the need to supply a bit more than 20 amps to the module when driving a nominal 2Ω load like this. The SP1-4000 will drive a single TH118 about 2dB shy of it's maximum rating on a single 20 amp breaker without issue. Driving (2) TH118's with a single SP1-4000 will drive each sub about 3dB shy of it's rating.</p><p></p><p>It couldn't be easier to make the replacement. As you mention, it is a drop-in affair. The only thing you have to do is remove the wires on the TH118's NL4 input jack and crimp them on the supplied molex connector's pins.</p><p></p><p>The connectors look <a href="http://rhu004.sma-promail.com/SQLImages/kelmscott/Molex/PDF_Images/USA-132.PDF" target="_blank">similar to these</a>.</p></blockquote><p></p>
[QUOTE="Langston Holland, post: 33517, member: 171"] Re: Great Info - Thanks Hi Fernando: > 1) Can 1 SP1-4000 power 2 TH-1118s? or am I asking too much > > 2) How easy is the drop in replacement that you mention? The SP1-4000 would be very comfortable with the 2Ω load presented by a pair of TH118's and in fact that's what the designer was thinking when he installed the NL4 output on the module. Under severe low frequency loads you may find the need to supply a bit more than 20 amps to the module when driving a nominal 2Ω load like this. The SP1-4000 will drive a single TH118 about 2dB shy of it's maximum rating on a single 20 amp breaker without issue. Driving (2) TH118's with a single SP1-4000 will drive each sub about 3dB shy of it's rating. It couldn't be easier to make the replacement. As you mention, it is a drop-in affair. The only thing you have to do is remove the wires on the TH118's NL4 input jack and crimp them on the supplied molex connector's pins. The connectors look [url=http://rhu004.sma-promail.com/SQLImages/kelmscott/Molex/PDF_Images/USA-132.PDF]similar to these[/url]. [/QUOTE]
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