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Infinity Auto midrange A new match for Kappa series??????

A

Augy

Well-Known Member
Augy here
Check this out on e-bay and let us hear what you think. The Infinity midrange domes of the late 80's tend to discolor and crumble . Could this be a perfect replacement??? On e-bay now title and auction # INFINITY REFERENCE RSDS POLYGRAPH K MIDRANGE DOMES Item number: 190147118 /SIZE]
 
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I can't find enough information to tell if those domes have anything more in common with the Kappa drivers than the name. The RSDS Polygraph k at least has a frequency response that could possibly work, but if falls 20Hz short of the lower crossover point.

RSDS Polygraph

SPECIFICATIONS
General
Mounting Depth 1.5"
Frequency Response 100Hz - 800Hz +/-2dB
Power Rating 75 watts
Sensitivity 89dB 1 watt, 1 meter
Impedance 4 ohms
Click to expand...

- JP
 
Re: Infinity Polygraphs

Hi, new member here. I run a pair of the Infinity Polydome Mids in my auto system. The 'Polygraphs' IIRC are/were midbass drivers The Polydomes measure apprx 3" in diameter I've been enjoying them since '95' my truck's 4-way separates system. The automotive midbsses ar a pair of the Infinity 6" mid bass cones
 
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