JBL IMP-4

Little is documented about the JBL IMP-4. What survives comes from a single period entry in HiFI-Stereo (1988, p.158). It lists a frequency response of 34-25,000 Hz ± 3 dB, a sensitivity of 94 dB, and an impedance of 4 ohms. No production years, original price, dimensions, driver configuration, cabinet type, or design details have been found. The model name suggests a speaker system, possibly a kit or a consumer loudspeaker, but its place in JBL's lineup and its intended market remain unconfirmed.

• Frequency response: 34–25,000 Hz ± 3 dB
• Sensitivity: 94 dB
• Impedance: 4 ohms

eBay Listings

FiiO IMP-3.5/IMP-4.4 Impedance Adapter Plug 33Ω/75Ω 3.5mm/4.

$38.57

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