User's Guide 104 Extension Monitor 104 Master Monitor
Product Registration Thank you for your purchase of JBL 104 Reference Monitors To receive important information as it becomes available, please take a moment to register your speakers at www.jblpro.com/registration.
Table of Contents Section 1: Important Safety Instructions ��������������������������������������������������������������������������������������������������������������� 4 Section 2: Introduction ������������������������������������������������������������������������������������������������������������������������������������������� 5 JBL Coaxial Transducer ���������������������������������������������������������������������������������������������������������������������������������� 5 Features ��������
Section 1: Important Safety Instructions 1. READ these instructions. 2. KEEP these instructions. 3. HEED all warnings. 4. FOLLOW all instructions. 5. DO NOT use this apparatus near water. 6. CLEAN ONLY with dry cloth. WARNING: Do Not Open! Risk of Electrical Shock. Voltages in this equipment are hazardous to life. No user-serviceable parts inside. Refer all servicing to qualified service personnel. 7. DO NOT block any ventilation openings.
Section 2: Introduction Congratulations on your purchase of JBL Professional 104 Reference Monitors. These monitors meet JBL’s high standards for accuracy and long-term reliability in demanding applications. All 104 Reference Monitors incorporate JBL Professional transducer technologies to provide accurate frequency response, low frequency extension and impressive output for their compact size.
Section 3: Setting Up Your System INCLUDED ITEMS • 1 x 104 Master Monitor • 1 x 104 Extension Monitor • 1 x Extension Monitor Connection Wire • 1 x Audio Connection Cable: 3.5 mm (1/8") mini TRS stereo plug to dual RCA plug • 1 x Power Cord • 1 x Quick Setup Guide PLACEMENT 104 Reference Monitors are designed to deliver detailed imaging when placed on your work surface.
AUDIO CONNECTIONS NOTE: Before making audio connections, ensure the VOLUME control on the 104 MASTER MONITOR is set to the full counter-clockwise (minimum) position. The 104 MASTER MONITOR is equipped with 6 mm (1/4") TRS inputs for connection of balanced and unbalanced professional audio products with high-level outputs (up to +4 dBu nominal), such as professional computer audio interfaces, mixing consoles and audio production equipment.
Section 4: Features and Functions Master Monitor Front Extension Monitor Rear Rear 12 6 1 3 4 2 5 7 8 9 13 10 11 14 1. COAXIAL TRANSDUCER (SPEAKER) – Separate high and low frequency transducers are mounted in a single frame to create a full range speaker that reproduces the entire audio range. 2. POWER INDICATOR – Illuminates when power is connected and the POWER switch is set to ON.
Master Monitor Front Extension Monitor Rear Rear 12 6 1 3 4 2 5 7 8 9 13 10 11 14 8. 6.5 MM (1/4”) TRS INPUTS – Connect professional equipment to these inputs using balanced or unbalanced 6.5 mm (1/4”) cables. NOTE: Signal connected to the TRS (Tip Ring Sleeve) input labelled "MASTER" will be reproduced by the MASTER MONITOR. Signal connected to the TRS input labelled "EXTENSION" will be reproduced by the EXTENSION MONITOR.
Section 5: Standby Mode The JBL 104 Reference Monitors are equipped with a low-power "Standby Mode” that automatically reduces the power consumption when signal is not detected for a period of 19 minutes. Once in Standby Mode, normal operation is restored when signal is detected. It is normal to experience a momentary delay prior to resumption of audio. Standby Mode is enabled by default, but it can be disabled for professional applications that require the speakers to be fully operational at all times.
Section 6: Troubleshooting Issue: There is no sound from the monitors. • Confirm the power cable is connected to the MASTER MONITOR and the POWER switch is set to the ON position. • Make sure the POWER LED is illuminated on the front of the MASTER MONITOR. • Make sure a signal source is connected to the MASTER MONITOR and that it is producing sound. • Make sure the 104's VOLUME control is not set to the full counter-clockwise (minimum) position. Issue: The signal is distorted.
Section 7: Specifications System Input Type: System Output Type: 1/8" Aux, RCA, 1/4" TRS balanced 1/8" stereo headphone with auto speaker mute LF Transducer: 4.5 in (118 mm) HF Transducer: 0.
Section 8: Graphs FREQUENCY RESPONSE 13
Section 9: Contact Information MAILING ADDRESS: JBL Professional 8500 Balboa Blvd. Northridge, CA 91329 SHIPPING ADDRESS: JBL Professional 8370 Balboa Blvd., Dock D Northridge, CA 91329 (Do not return product to this address without first obtaining prior authorization from JBL) CUSTOMER SERVICE: Monday through Friday 8:00am - 5:00pm Pacific Coast Time in the U.S.A. (800) 8JBLPRO (800.852.5776) www.jblproservice.com PRODUCT REGISTRATION: Register your product online at www.jblpro.
Section 10: Warranty Information The JBL Limited Warranty on professional loudspeaker products (except for enclosures) remains in effect for five years from the date of the first consumer purchase. JBL amplifiers are warranted for three years from the date of original purchase. Enclosures and all other JBL products are warranted for two years from the date of original purchase. WHO IS PROTECTED BY THIS WARRANTY? Your JBL Warranty protects the original owner and all subsequent owners so long as: A.
Issue date: 1/2019
