15 series Headphones & Accessories

15-148 PROFESSIONAL SERIES HEADPHONES
Lightweight stereo headphones with Samarium Cobalt magnets. Weight is less than 6.5 oz. for continuous listening. Cord is 7ft. long terminated with a gold 1/4" stereo phone plug.
Specifications

Impedance ........................600 Ohms             
Sensitivity..............................105 dB
Frequency Range..........18-22,000 Hz        
Weight...................................175 gr
Max. Power Input..........3.1v (300mW)

15-120 PROFESSIONAL SERIES HEADPHONES
Lightweight stereo headphones. Weight is less than 6 oz. for continuous listening. Cord is 7ft. long terminated with a 1/4" stereo Phone plug.
Specifications

Impedance .......................40 Ohms
Frequency Range........20-22,000 Hz
Max. Power Input..................100mv        
Sensitivity................105 dB @ 1mW
Weight ................................160 gr

15-116 PROFESSIONAL SERIES HEADPHONES
Lightweight stereo headphones. Weight is less than 6 oz. for continuous listening. Cord is 7ft. long terminated with a 1/4" stereo phone plug.
Specifications

Impedance..........32 Ohms 
Sensitivity..........95 dB @ ImV
Frequency Range..........25-20,000 Hz
Max. Power Input..........110mW

15-118 STEREO-MONAURAL HEADPHONE
High-velocity 57 mm mylar diaphragm drive units. Padded adjustable headband and earmuffs. Independent volume controls and stereo/mono switch with 1/4" phone plug.
Specifications

Frequency Response..........20-20,000 Hz 
Acoustic System..........Closed back
Impedance..............32 ohms 
Sensitivity..........102 db at 1 mW mW
Maximum Power Input..........110mW 
Length of Cord..........9 ft. with 1/4"stereo phone plug

15-122A & 15-123 MONAURAL & STEREO HEADPHONES
Designed for general and educational use. Rugged construction, yet provides excellent listening comfort. Complete with padded ear cushions. Stereo/Monaural switching.
Specifications for 15-1 22A

Frequency Response..........30-18,000 Hz
Impedance..........8 ohms
Length of Cord..........10 ft.. spiral w/ stereo 1/4" phone plug

Specifications for 15-123

Frequency Response..........30-18,000 Hz
Impedance..........600 ohms
Length of Cord..........10ft. with stereo 1/4" phone plug

15-135 DYNAMIC STEREO-MONAURAL HEADPHONE
Expertly styled, well padded headband and earphones for snug, comfortable fit. Finely finished in black color. Stereo/Mono switching with individual volume control on each phone for perfect balance.
Specifications

Frequency Response..........20-20,000 Hz
Cable.......... l0 ft. spiral, 3-cond. with stereo 1/4" phone plug
Impedance...........8 ohms
Sensitivity.......... 102 dB at 1 mW
Maximum Power Input..........100mW

15-144 PROFESSIONAL HEADPHONE
WITH BOOM MICROPHONE
Excellent quality, used for Broadcast monitors, switchboard, intercom and general communication work, headphone and microphone can be used simultaneously or independently. 1/4" plugs. Headset Specifications:

Impedance..........32Ohms
Frequency Range..........25-20,000Hz
Max Power Input..........100mW
Sensitivity..........95dB@1mV
Length of Cord..........3ft.

Microphone Specifications:

Impedance..........300Ohms
Sensitivity..........80dB@1kHz
Frequency Response..........100-10kHz

15-110 STETHOSET-TYPE MINI STEREO HEADPHONE
Stethoset type stereo headphones. Has two style ear cushions included. One is foam style and the other is soft rubber for use when conditions warrant. Supplied with a right angle 3.5mm stereo plug and 1/4" adapter.

Specifications

Frequency Response..........20-20,000Hz
Impedance..........32Ohms
Cord Length..........4ft.
Weight..........25Gr.

15-112 & 15-113 EARBUD MINI HEADPHONES
Ear bud stereo Headphones with open back design. Comes with a compact carrying case with see-thru design. Right angle 3.5 mm gold stereo plug. 15-113 same as 15-112 except earbuds are lager in designr.

Specifications

Frequency Response..........20-20,000Hz
Impedance..........8 - 32Ohms
Cord Length..........3ft.
Weight..........10Gr.

15-145A MINI STEREO HEADPHONE
Ultra lightweight, less than 2 oz, yet high performance with 27 mm mini mylar drivers-excellent replacement for most portable cassette players. 1/4" stereo adapter included.
Specifications

Frequency Response..........20-20 kHz...
Sensitivity..........100 dB 1000 Hz
Matching Impedance..........4-32 ohms...
Cord Length..........5 ft. w/3.5 mm plug

15-146 FOLDING STEREO MINI HEADSET
Excellent sound quality, yet compact in size. Easy to carry, folds into 4 1/4" x 23/4" package. Fits into most shirt pockets. Fully adjustable headband, with high compliance mylar drivers-complete with 5 h. cord and 1/4" stereo adapter, 3.5 mm plug.
Specifications

Frequency Response.............20 to 22 kHz
Power Max..........100 mW
Matching Impedance.......... 4-32 ohms

15-147 NEW IN-EAR TYPE MINI STEREO HEADPHONES
Can be used under head gear, helmets, etc. 4ft.cable with 3.5 mm stereo plug. Impedance 4-32 ohm.

15-93 Through 15-96 DYNAMIC EARPHONES Earphones for most transistor radios, cassette recorders, and television private listening. Most popular types listed below (3ft.cord, unless specified).

15-93..........low impedance type with miniature plug
15-95 ...................6ft. Low impedance-3.5 mm plug
15-93..........Subminiature plug with 20 h. cord 
15-96 ..............12 ft. Low impedance-3.5 mm plug

15-101 Through 15-106 REPLACEMENT EARPHONES
Frequency response 50 - 4,000 cps. Flesh colored plastic case, flex cord with miniature phone plug and closed circuit jack. Excellent for transistor radios, etc. (3 ft. cord, unless specified).

15- 101 ...............Above description 
15- 104...............Some as above, less jack sub-miniature plug
15- 103...........Same as above, less jack      
15- 106..........Same as above, less jack, 20ft cord

15-300 INFRARED HEADPHONE SYSTEM
The 15-300 is an Infrared Headphone System consisting of one main transmitter and three slave units. These may be wired in a daisy chain affair for large auditoriums, or you can use the master alone for small rooms.The system transmits on a single channel frequency in stereo. The main transmitter has direct inputs for microphone and line level signals. No amplifier is required. The system comes complete with all hookup cords, (4) cables 25', (4) cables 6', and support bases for slave units. An optional power supply, part number 45-3000*, is required.
The 15-1 50R* receiver is lightweight and has an individual volume control. Several different headphones are available for use with the 15-150R. A special adapter, part number 35-553*, can also be used to connect two headphones to (1) receiver .
* sold separately

JUNCTION BOXES

15-131 STEREO & MONAURAL HEADPHONE JUNCTION BOX
Used with many school teaching systems and language labs, provides private listening for 8 individual persons. Individual volume control for each channel. Can be gang connected. Operates from any 8 ohm output source to 8 ohm headphones. Supplied in black crackle finish, 9 ft. connecting cable with standard 1/4" phone plug. Has 4 non-slip rubber feet. Size: 8" long x 6 1/4" W x 3 1/4" H. (Individually boxed.) 50 watts maximum load.


15- 132 PROFESSIONAL HEADPHONE JUNCTION BOX
Provides equal signal output from 1 to 6 stereo headphones without affecting the signal. Both an XLR connection and 1/4" phone plug are provided. The 1/4" output jack allows connection of additional headphone boxes. Designed to operate 8 ohm to 600 ohm headphones. 50 watts maximum load.

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