The JBL HDI-3600 ranks #28 out of 71 total Large Size Floorstanding Speakers for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.

Brand: JBL

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JBL HDI-3600 - ranked #28 of 71 Large Size Floorstanding Speakers · Editor's rating 4.3/5

Check price at Audioadvice ($3800) →

#28 JBL HDI-3600: $3800 Audioadvice eBay

Pros: CEA2034 spinorama shows a fairly even on-axis response and flat overall frequency response, with high 90dB sensitivity and very low distortion through the midrange. Triple 6.5” Advanced Aluminum Matrix woofers and a 1” compression driver in JBL’s HDI waveguide.

Cons: A wide shelving-down above 2kHz affects the in-room response, and vertical dispersion is a bigger issue than horizontal - the reviewer noted the dip is wider here than on the smaller HDI-1600, making it more audible. Narrow vertical sweet spot means careful listener-height positioning matters more than usual.

How it compares: Just above it: Arendal 1961 Tower - $1900 cheaper, 3Hz lower bass extension (-3dB). Just below it: Perlisten R7t - $1195 more, 0.5Hz higher bass extension (-3dB).

Bass Extension (-10dB)	62Hz - the on-axis curve also shows an unusual step/dip around 40-55Hz that may be a near-field-scan artifact for this tower (measured, Audio Science Review)
Bass Extension (-3dB)	78Hz - the on-axis curve also shows an unusual step/dip around 40-55Hz that may be a near-field-scan artifact for this tower (measured, Audio Science Review)
Dimensions	40.5"H x 10.2"W x 13.5"D (1029 x 260 x 343 mm)
Drivers	2410H-2 1" compression driver, 3x 6.5" Advanced Aluminum Matrix woofers
Frequency Response	38Hz - 30kHz (+/-3dB) (Manufacturer specified)
Impedance	4 ohms nominal
Sensitivity	89.5dB (2.83V/1m, measured, Audio Science Review)
Weight	61.7 lbs / 28 kg each
Woofer Cabinet	ported, dual rear-firing

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