Wireless Surround Sound



Multi-Channel Wireless Audio Transmitter, Model 400



Make all of your speakers wireless with the  Model 400 Wireless Audio Transmitter. Ideal for 7.1 home theater systems: the transmitter transmits four channels of audio. You can make your rear speakers and your side speakers wireless or transmit to two rear speakers and a subwoofer.

The Model 400 transmits to any number of Model 400 wireless receivers and Model 480 wireless amplifiers. No more running long speaker cables. Set up your home theater speakers or speakers in another room without a big cabling project. Simply purchase as many wireless receivers and wireless amplifiers as you need.

The multi-channel transmitter will send the music at 5.8 GHz to the wireless receivers and amplifiers up to 150 feet. You will enjoy true CD quality with uncompressed digital wireless audio. Each Model 400 wireless receiver has a stereo RCA output and connect to any active speaker, subwoofer or power amplifier. Each model 480 wireless amplifier has a mono speaker amplifier built in and connects directly to any passive loudspeaker. The built-in amplifier delivers the efficiency of conventional class-D amplifiers while at the same time delivering far lower audio distortion.

The wireless receivers and amplifiers measure only 5 x 3.5 x 2 inches and are easily mountable to a speaker.

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Model 400 Wireless Transmitter




Audio transmission




Transmitter frequency

5.8 GHz



Number of wireless audio channels




Error correction

1/2 rate FEC



Transmitted data rate

6 Mbps



Audio inputs

speaker-level, line-level



Operating range

Max. 150 ft. (50 m) line of sight,
max. 30 ft. (10 m) through walls



Model 400 Wireless Receiver




Output level

1 Vrms (stereo line level output)



Frequency response

2 Hz ... 20 kHz



Signal-to-noise ratio

96 dB


Total harmonic distortion (THD+N)

0.003 %


Overall audio latency

< 1 ms


Channel separation

95 dB



Model 480 Wireless Amplifier




Output power

150 W (80 Wrms) (amplified mono speaker output)



Frequency response

2 Hz ... 20 kHz



Signal-to-noise ratio

96 dB


Total harmonic distortion (THD+N)

0.04 %


Overall audio latency

< 1 ms


Power efficiency

90 %



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How-To Video


How-To Video




How To Use Our Wireless Speaker Kits




Customer Testimonials Model 1550




"I recently purchased the Amphony L1550 wireless system. It is awesome!!! The fidelity is equal to a wired setup... Thanks for a great product."
 Herbert E., USA



"I received the transmitter/amplifiers and they work great. The sound quality is excellent."
 Bob W., USA



"I have had excellent experience with Amphony and highly recommend them. The amplifiers sound superb, and as the email states, solve a difficult installation problem for me. They are a noiseless, high fidelity, high dynamic range, high power, wireless solution."
 Tim P., USA



"Many thanks for the delivery of the Amphony 1550. I am really incredibly impressed with the product - the sound quality is brilliant, and transmission flawless."
 Corin M., USA



"I recently bought the 1550 transmitter. What a great product. I use it for my rear surround speakers. Zero interference, excellent reproduction."
 Jeff P., USA



"I recently purchased a model 1550 transmitter/amplifier combination. I set them up with a pair of Polk Monitor 70 speakers. They sound very good."
 David S., USA




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