Overview
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.
Features:
- 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
Advantages:
- Gold-Plated RCA Input Connectors
- Each Output is Driven Separately
- Knobs for Easy Level Adjustment
Specifications
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)
Outputs (4):
Stereo on Mini jacks (rear panel), 60 mW (100 Ω load)
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)
Frequency Response:
20 Hz to 50 kHz (±1.5 dB, 100 Ω load)
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.)
Case dimensions:
5.75” (14.6 cm)W x 3” (7.6 cm)D
Mounting size:
1/3 rack width.
Package Type:
Cardboard Box
Package Dimensions:
9.5 x 7 x 2.25 in.
Shipping Weight:
0.975 lbs.
WEEE weight:
0.575 lbs.
Tariff code:
8543.70.9960
RDL Three-Year Limited Warranty
Installation of these products by the Purchaser shall constitute Purchaser’s acknowledgement and acceptance of the terms and
conditions for sale and of this warranty, and shall constitute the Purchaser’s determination of the suitability of this product for the
Purchaser’s intended application. Radio Design Labs, Inc., also referred to as RDL®, warrants to the Purchaser that products
manufactured by RDL are free from defects in material and workmanship. This warranty applies to the period of three years from the date
of shipment, except for component parts or products purchased from other sources and supplied by RDL. Such component parts or
products bear only the warranty of the manufacturer thereof in effect at the time of shipment to the Purchaser. RDL will, without charge,
and after written notice has been received and acknowledged by RDL, repair an RDL product if proved to be defective according to the
usage of the trade, when such equipment is received by RDL at the location it designates with shipment costs prepaid by the Purchaser.
RDL shall not be liable for any expense whether for repairs, replacements, material, service, or otherwise, incurred by the Purchaser or
modifications made by the Purchaser to the product. No equipment shall be deemed defective if it shall fail to operate in a normal or
proper manner due to exposure to excessive moisture in the atmosphere, excessive temperature extremes, improper environmental
cleanliness, or any other environment not consistent with the principles of good engineering practice. In no event shall RDL have any
liability for consequential damage or expense directly or indirectly arising from the use of the products, or any inability to use it either
separately or in combination with other equipment or materials, or from any other cause, whether used in accordance with instructions or
not. This warranty is void if equipment is altered in any way by other than RDL. RDL products are NOT intended for use in life support
appliances, devices, or systems. Use of RDL products in such applications is done solely at the liability of the reseller/installer and/or end
user. RDL reserves the right to change design parameters and specifications at any time without notice. The performance measurements
reflect the products at the time of printing. This warranty is in lieu of all others, either expressed or implied. No representative is authorized
to assume for RDL any other liability in connection with RDL products.
