Amphony 2.4 GHz Digital Audio Receiver/ Amplifier... User manual

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2.4 GHz Digital Audio Receiver/ Amplifier Model 1200
Product Specification
Features
·200 W Output Power
·Digital (class D) amplifier
·94 dB Dynamic Range
·90 % power efficiency
·Avoids quality losses due to audio
compression
·128 times digital interpolation filter stage and
analog filter stage
·Range of up to 300 ft (line of sight)
·Avoids reception errors by employing
½ rate forward error correction
·Mute Function
·No switch-on/ switch-off plops
·Short-circuit Safe Output
·Only one supply voltage required
·Power-Down Feature
Applications
·Wireless home theater systems
·Wireless hi-fi stereo speaker systems
General Description
The Model 1200 receiver/ amplifier will receive
a digital audio signal that is being transmitted in
the 2.4 GHz range by either the Model 1000 or
Model 2000 transmitter. The recovered audio
signal will pass a digital as well as an analog
filter stage to eliminate out-of-band components
and is amplified to the maximum output power
of 200 W to drive a speaker unit.
By receiving the signal in a digital format, noise
and quality losses that are inherent with
conventional analog systems are avoided.
The Model 1200 receiver/ amplifier will apply
forward error correction to the received signal in
order to maximize reception robustness.
The amplifier is a digital (class D) amplifier. The
typical power efficiency is 90 %.
The Model 1200 receiver/ amplifier will enter a
Power-Down Mode if no valid signal is received.
It will return to active mode when a valid signal
is detected.

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2.4 GHz Digital Audio Receiver/ Amplifier Model 1200
Reference Data (Preliminary)
PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
OVERALL PERFORMANCE
Dynamic range A-weighted 89 94 dB
THD = 10%, 8 W,
VP=60V
200 W
Output power
THD = 0.5%, 8 W,
VP=60V
150 W
Non-repetitive peak output current tbf A
Repetitive peak output current tbf A
Total harmonic distortion PO=1W 0.1 0.3 %
Low frequency roll-off tbf Hz
High frequency roll-off tbf kHz
RS = 0, Note 1 140 280 mV Noise output voltage
RS = 10 kW,Note1 140 mV
Supply voltage ripple rejection 66 dB
line of sight,
Note 2
200 ft
through obstructions,
Note 2
60 ft
line of sight,
Note 3
100 m
Reception range
through obstructions,
Note 3
30 m
DC POWER CHARACTERISTICS
DC supply voltage 30 50 60 V
Peak output power 4 A
Quiescent current 230 mA
Power consumption
Power-down mode 165 mA
Notes:
1) Noise output voltage measured in a bandwidth of 20 Hz to 20 kHz
2) When used in conjunction with a Model 1000 or Model 2000 transmitter, American model
3) When used in conjunction with a Model 1000 or Model 2000 transmitter, European model

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Contacting Amphony Support
For contact details and Local Sales Representatives, visit the Amphony web site at:
http://www.amphony.com
A
mphony has made best efforts to ensure that the information contained in this document is accurate and reliable. However, the
information is subject to change without notice and is provided “AS IS” without warranty of any kind (express or implied). No
responsibility is assumed by Amphony for the use of this information, nor for infringements of patents or other rights of third
parties. This document is the property of Amphony and implies no license under patents, copyrights, trademarks, or trade
secrets. No part of this publication may be used as a basis for manufacture or sale of any items without the prior written consent
of Amphony. The names of products of Amphony or other vendors and suppliers appearing in this document may be trademarks
or service marks of their respective owners which may be registered in some jurisdictions. A list of Amphony trademarks and
service marks can be found at http://www.amphony.com.
2.4 GHz Digital Audio Receiver/ Amplifier Model 1200