JBL 28T Indoor/Outdoor Monitor Speaker 70/100 volt

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  • Item Category: Tools
  • Source: eBay
  • Sold Date: Jun 11, 2009
  • Channel: Auction House

Used but it excellent condition

JBL Control 28T High Output,

Indoor/Outdoor,

Background/Foreground Speaker

Key Features:

_ Isolation transformer for 70.7V/100V distributed-line sound systems

_ Components: 8” Polypropylene coated woofer, 1” Titanium coated horn loaded tweeter

_ Built-in InvisiBall ® mounting hardware*

_ Weather resistant enclosure and transducers

_ Readily paintable

_ 90° x 90° high frequency horn

_ Overload Protection Circuitry

Specifications:

Frequency Range (-10 dB) 1: 55Hz to 15kHz

Power Capacity: Components and Network: 175 Watts Continuous Program 2

Transformer: Per each listed tap rating

(IEC pink noise, 100 hrs)

Tap Settings: 100V Line: Tap 1 = 15W, Tap 2 = 30W

Tap 3 = 60W, Tap 4 is not used

70V Line: 0 Tap 1 = 7.5W, Tap 2 =15W

Tap 3 = 30W, Tap 4 = 60W

Nominal Max Output by Tap: Tap Number 70.7V Input 100V Input

(dB-SPL @ 1m) : Tap #1: 0 99 dB 102 dB

Tap #2: 102 dB 105 dB

Tap #3: 105 dB 107 dB

Tap #4: 107 dB (do not use)

Nominal Coverage: 90° x 90°

Directivity Factor (Q): 7.5

Directivity Index (DI): 8.8

Crossover Frequency: 2.8kHz

LF Driver:
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