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Help me choose between these tweeters.
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<blockquote data-quote="cotjones" data-source="post: 8765657" data-attributes="member: 573988"><p>I don't care about the mounting.</p><p>Is one of these better than the other?</p><p>They are virtually the same price.</p><p>I see that the sc-90 has a lower frequency range (800hz), lower resonant frequency, and higher Q across the board.</p><p>What differences if any are these parameters going to translate into in the car?</p><p></p><p>I'm running them on very high power. probably close to the 100w RMS they are rated.</p><p>I don't want lower frequency response from tweeters if that's just going to make them easier to blow, or have awful vibrations in the ~1.5 Range.</p><p></p><p></p><p></p><p><a href="https://www.parts-express.com/Peerless-XT25SC90-04-1-Dual-Ring-Radiator-Tweeter-264-1014" target="_blank">https://www.parts-express.com/Peerless-XT25SC90-04-1-Dual-Ring-Radiator-Tweeter-264-1014</a></p><p></p><table style='width: 100%'><tr><td>Cone / Dome Diameter</td><td>1"</td></tr><tr><td>Cutout Diameter</td><td>1.85</td></tr><tr><td>Tweeter Type</td><td>Soft Dome</td></tr><tr><td>Power Handling (RMS)</td><td>100 Watts</td></tr><tr><td>Impedance</td><td>4Ω</td></tr><tr><td>Frequency Response</td><td>800 to 20,000Hz</td></tr><tr><td>Sensitivity</td><td>91.1dB 2.83V/1m</td></tr></table> <table style='width: 100%'><tr><th><strong>Thiele-Small Parameters</strong></th><th></th></tr><tr><td>Resonant Frequency (Fs)</td><td>824.8Hz</td></tr><tr><td>DC Resistance (Re)</td><td>3.13Ω</td></tr><tr><td>Voice Coil Inductance (Le)</td><td>0.01mH</td></tr><tr><td>Mechanical Q (Qms)</td><td>7.17</td></tr><tr><td>Electromagnetic Q (Qes)</td><td>1.07</td></tr><tr><td>Total Q (Qts)</td><td>0.93</td></tr></table><p></p><p></p><p></p><p><a href="https://www.parts-express.com/Peerless-XT25SC40-04-1-Ring-Radiator-XT-Tweeter-4-Ohm-264-1642" target="_blank">https://www.parts-express.com/Peerless-XT25SC40-04-1-Ring-Radiator-XT-Tweeter-4-Ohm-264-1642</a></p><p></p><table style='width: 100%'><tr><td>Cone / Dome Diameter</td><td>1"</td></tr><tr><td>Cutout Diameter</td><td>1.73</td></tr><tr><td>Tweeter Type</td><td>Soft Dome</td></tr><tr><td>Power Handling (RMS)</td><td>100 Watts</td></tr><tr><td>Impedance</td><td>4Ω</td></tr><tr><td>Frequency Response</td><td>2,500 to 20,000Hz</td></tr><tr><td>Sensitivity</td><td>91.1dB 2.83V/1m</td></tr></table> <table style='width: 100%'><tr><th><strong>Thiele-Small Parameters</strong></th><th></th></tr><tr><td>Resonant Frequency (Fs)</td><td>1018Hz</td></tr><tr><td>DC Resistance (Re)</td><td>3.22Ω</td></tr><tr><td>Voice Coil Inductance (Le)</td><td>0.01mH</td></tr><tr><td>Mechanical Q (Qms)</td><td>2.53</td></tr><tr><td>Electromagnetic Q (Qes)</td><td>0.83</td></tr><tr><td>Total Q (Qts)</td><td>0.63</td></tr></table></blockquote><p></p>
[QUOTE="cotjones, post: 8765657, member: 573988"] I don't care about the mounting. Is one of these better than the other? They are virtually the same price. I see that the sc-90 has a lower frequency range (800hz), lower resonant frequency, and higher Q across the board. What differences if any are these parameters going to translate into in the car? I'm running them on very high power. probably close to the 100w RMS they are rated. I don't want lower frequency response from tweeters if that's just going to make them easier to blow, or have awful vibrations in the ~1.5 Range. [URL]https://www.parts-express.com/Peerless-XT25SC90-04-1-Dual-Ring-Radiator-Tweeter-264-1014[/URL] [TABLE] [TR] [TD]Cone / Dome Diameter[/TD] [TD]1"[/TD] [/TR] [TR] [TD]Cutout Diameter[/TD] [TD]1.85[/TD] [/TR] [TR] [TD]Tweeter Type[/TD] [TD]Soft Dome[/TD] [/TR] [TR] [TD]Power Handling (RMS)[/TD] [TD]100 Watts[/TD] [/TR] [TR] [TD]Impedance[/TD] [TD]4Ω[/TD] [/TR] [TR] [TD]Frequency Response[/TD] [TD]800 to 20,000Hz[/TD] [/TR] [TR] [TD]Sensitivity[/TD] [TD]91.1dB 2.83V/1m[/TD] [/TR] [/TABLE] [TABLE] [TR] [TH][B]Thiele-Small Parameters[/B][/TH] [/TR] [TR] [TD]Resonant Frequency (Fs)[/TD] [TD]824.8Hz[/TD] [/TR] [TR] [TD]DC Resistance (Re)[/TD] [TD]3.13Ω[/TD] [/TR] [TR] [TD]Voice Coil Inductance (Le)[/TD] [TD]0.01mH[/TD] [/TR] [TR] [TD]Mechanical Q (Qms)[/TD] [TD]7.17[/TD] [/TR] [TR] [TD]Electromagnetic Q (Qes)[/TD] [TD]1.07[/TD] [/TR] [TR] [TD]Total Q (Qts)[/TD] [TD]0.93[/TD] [/TR] [/TABLE] [URL]https://www.parts-express.com/Peerless-XT25SC40-04-1-Ring-Radiator-XT-Tweeter-4-Ohm-264-1642[/URL] [TABLE] [TR] [TD]Cone / Dome Diameter[/TD] [TD]1"[/TD] [/TR] [TR] [TD]Cutout Diameter[/TD] [TD]1.73[/TD] [/TR] [TR] [TD]Tweeter Type[/TD] [TD]Soft Dome[/TD] [/TR] [TR] [TD]Power Handling (RMS)[/TD] [TD]100 Watts[/TD] [/TR] [TR] [TD]Impedance[/TD] [TD]4Ω[/TD] [/TR] [TR] [TD]Frequency Response[/TD] [TD]2,500 to 20,000Hz[/TD] [/TR] [TR] [TD]Sensitivity[/TD] [TD]91.1dB 2.83V/1m[/TD] [/TR] [/TABLE] [TABLE] [TR] [TH][B]Thiele-Small Parameters[/B][/TH] [/TR] [TR] [TD]Resonant Frequency (Fs)[/TD] [TD]1018Hz[/TD] [/TR] [TR] [TD]DC Resistance (Re)[/TD] [TD]3.22Ω[/TD] [/TR] [TR] [TD]Voice Coil Inductance (Le)[/TD] [TD]0.01mH[/TD] [/TR] [TR] [TD]Mechanical Q (Qms)[/TD] [TD]2.53[/TD] [/TR] [TR] [TD]Electromagnetic Q (Qes)[/TD] [TD]0.83[/TD] [/TR] [TR] [TD]Total Q (Qts)[/TD] [TD]0.63[/TD] [/TR] [/TABLE] [/QUOTE]
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Help me choose between these tweeters.
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