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CLASSIC AUDIO AND VIDEO EQUIPMENT |
Speaker Protection Devices
| Quantity Available | Make, Model | Range, Power, Imaging | Rare Item |
In Original Box, Used, etc; Condition |
Special Features |
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12 - SOLD
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Pro-Tech QED SP-150
USA?
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Passes full frequency range with no distortion |
Each unit originally purchased for $120.00. 10 In
Original Box
(all
10 left) 4 Used - still mint (3 sold. 1 left) Never obsolete! |
Protects speakers against damaging signal levels, with no degradation or
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2 - SOLD
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Pro-Tech QED SP-150SC
USA?
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Passes full frequency range with no distortion |
Each unit originally purchased for $120.00. 1 In Original Box 3 Used - still mint |
Similar to the Pro-Tech QED SP-150, except that the SC version "literally short circuits the amplifier to protect the speakers" (quoted from the warning label on the product box). Caution: Continuing the quote on the product warning label, 'We strongly suggest that you contact the manufacturer of the amplifier to confirm that this is acceptable." |
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