INSTALLATION AND
INSTALLATION AND
OPERATION MANUAL
OPERATION MANUAL
Model numbers:
EZ-HDA4B
EZ-HDA4B includes power supply with North American plug
EZ-HDA4BX includes worldwide power supply (specify plug)
Stereo Headphone Distribution Amplifier
RDL EZ Series products provide the highest level of value to A/V professionals and A/V users who demand professional quality.
RDL EZ Series products provide the highest level of value to A/V professionals and A/V users who demand professional quality.
For long-term performance, quality and value, you have made the EZ choice. EZ products are made in the USA by RDL, the
For long-term performance, quality and value, you have made the EZ choice. EZ products are made in the USA by RDL, the
inventor of application-specific modules bringing decades of experience as the world’s leading manufacturer of high-reliability
inventor of application-specific modules bringing decades of experience as the world’s leading manufacturer of high-reliability
performance products to the A/V industry. Visit the RDL website for hundreds of professional A/V products made in the USA by RDL.
performance products to the A/V industry. Visit the RDL website for hundreds of professional A/V products made in the USA by RDL.
www.rdlnet.com
www.rdlnet.com
Decades of Performance, Quality and Value
Decades of Performance, Quality and Value
RDL• 659 N. 6th Street • Prescott, AZ • USA 86301 • Sales: 800-281-2683 • 928-443-9391
RDL• 659 N. 6th Street • Prescott, AZ • USA 86301 • Sales: 800-281-2683 • 928-443-9391
Tech Support: 800-933-1780 • 928-778-3554 • RDL Europe Sales & Support: (31) 20-6238-983
Tech Support: 800-933-1780 • 928-778-3554 • RDL Europe Sales & Support: (31) 20-6238-983
EZ-HDA4B
Stereo Headphone Distribution Amplifier
•
One Stereo Input to Four Stereo Outputs
•
Unbalanced Inputs on Rear Panel
•
Input on MINI, 1/4” (6.3 mm) or RCA Jacks
•
Headphone Outputs on Rear Panel
•
Outputs on MINI Jacks
•
Front-Panel LEVEL Control for Each Output
The EZ-HDA4B contains four stereo headphone amplifiers with individual front-panel volume controls. Headphone outputs are
provided on rear-panel MINI jacks. One stereo input signal feeds all the amplifiers. Stereo RCA jacks, a MINI jack and a 1/4”
jack are provided for connecting the input source. The EZ-HDA4B is used in music stores, houses of worship, studios, museums,
home component systems and commercial sound systems.
TYPICAL APPLICATION
Headphones
CD Player
EZ-HDA4B
www.rdlnet.com • • • www.rdlez.com
www.rdlnet.com • • • www.rdlez.com
LEVEL CONTROL 1
Adjust the LEVEL control for desired
headphone volume on rear-panel OUTPUT 1.
LEVEL CONTROL 3
Adjust the LEVEL control for desired
headphone volume on rear-panel OUTPUT 3.
LEVEL CONTROL 2
Adjust the LEVEL control for desired
headphone volume on rear-panel OUTPUT 2.
LEVEL CONTROL 4
Adjust the LEVEL control for desired
headphone volume on rear-panel OUTPUT 4.
POWER INDICATOR
Glows blue when the
product is connected to a
valid power source.
24 VDC POWER INPUT
Insert plug from power
supply. Rotate 1/4 turn
clockwise to lock.
POWER CONNECTION
POWER CONNECTION
Insert Power Plug
Insert Power Plug
Rotate 1/4-turn
Rotate 1/4-turn
clockwise to lock
clockwise to lock.
Rotate 1/4-turn
Rotate 1/4-turn
counter-clockwise
counter-clockwise
to unlock
to unlock.
HEADPHONE OUTPUTS
Plug headphones into the numbered mini-jack
corresponding to a front-panel level control
with the same number.
LINE INPUTS
Connect an unbalanced stereo source to the left and right
LINE IN RCA jacks, to the STEREO MINI jack or to the
STEREO 1/4” jack.
FIXED MOUNTING RUBBER FEET ATTACHMENT
FIXED MOUNTING RUBBER FEET ATTACHMENT
Screw
Screw
directly to flat
directly to flat
surface without
surface without
installing rubber feet.
installing rubber feet.
Connect only one input.
Peel backing and stick the 4 rubber
Peel backing and stick the 4 rubber
feet to chassis in recesses provided.
feet to chassis in recesses provided.
Recess
Recess
Bottom View
Bottom View
of chassis
of chassis
SELECTED MOUNTING ACCESSORIES
EZ-RA6
Rack Adapter for 6 Increments of 1/6 Rack Width
EZ-CC6
Component Chassis for 6 Increments of 1/6 Rack Width
Complete accessory listing available at: rdlez.com
EZ-SMB2
Surface Mount Bezel for 1/3 Rack Width Products
EZ-UCB2
EZ-UCB2
Under-Counter Brackets 1/6 or 1/3 Rack Width
Under-Counter Brackets 1/6 or 1/3 Rack Width
TYPICAL PERFORMANCE
TYPICAL PERFORMANCE
Inputs (3): Stereo on dual RCA jacks, stereo mini jack or 1/4” (6.3 mm) TRS, > 10 kΩ, -10 dBV nominal, +8.5 dBV max. (RCA and 1/4”), -16 dBV nominal, +2 dBV max. (Mini)
Level control: Off to +2.5 dB gain (RCA and 1/4” inputs, 100 Ω output load), Off to +9 dB gain (Mini input, 100 Ω output load)
Outputs (4): Stereo on Mini jacks (rear panel), 60 mW (100 Ω load)
Frequency Response: 20 Hz to 50 kHz (±1.5 dB)
THD+N: < 0.1% (10 mW output, 100 Ω load)
Crosstalk: < -75 dB (1 kHz)
Noise: < -95 dB (below 10 mW output, 100 Ω load, maximum gain)
24 Vdc power supply current: 40 mA (idle), 65 mA (max.)
Power supply input voltage: 100 to 240 VAC
Warranty: 3 Years; contact RDL technical support department for assistance
Case dimensions: 5.75” (14.6 cm)W x 3” (7.6 cm)D
Mounting size: 1/3 rack width
EZ-DC2
Desktop Chassis 1/3 Rack Width
EZ-SD2
Storage Drawer 1/3 Rack Width
Use In Place of Filler Panel
Holds Adapters and Cables
Mounts in EZ-CC6 and EZ-RA6
Copyright © 2009 Radio Design Labs, Inc. RDL, Radio Design Labs and the RDL logo are registered trademarks of Radio Design Labs, Inc. Data reflects product at publication time, subject to change without notice. “Made in USA” applies to all EZ products except power supplies.
Copyright © 2009 Radio Design Labs, Inc. RDL, Radio Design Labs and the RDL logo are registered trademarks of Radio Design Labs, Inc. Data reflects product at publication time, subject to change without notice. “Made in USA” applies to all EZ products except power supplies.
891-1520
Loading...