Pre Amplifiers
Pre Amplifiers
Pre Amp Amplifierand Mixer Digital Amplifier
" Mixer Amplifier" refers to a constant pressure amplifier with a front stage magnification, which can be directly connected to the micro and other signal sources without a mixer. The output voltage does not change with the change of the load impedance, that is, a power amplifier that outputs the maximum constant voltage of an audio signal, applying the deep negative feedback, outputs stable voltage, and the magnitude of the load within the rated power range has little effect on the output voltage of the amplifier. In order to reduce the power loss of the transmission line in long distance power transmission, the output transformer needs to be used. The output voltage contains mainly 70V, 90V, 120V and so on. The higher the voltage, the smaller the loss of transmission line. But because of the use of the output transformer, the sound quality is not very good. It's generally used in background music system and cable broadcasting system. Simply speaking, preamplifier is only an effector for sound quality regulation. Itself has no amplifier circuit, and the power is not so high. It can not directly drive the sound box make a sound. It is necessary to connect a PA machine to make the sound box work. The pure post PA does not have a preconditioning circuit, and can not tune the sound quality and karaoke without a front effect device. The combined amplifier is not suitable for wide band amplifier, but has many applications in active subwoofers.
The RH-AUIDO high quality preamplifieris a device that converts a weak electrical signal into an output signal strong enough to be noise-tolerant and strong enough for further processing, or for sending to a power amplifier in the sound system.
Featured built-in CHIME and SIREN circuitry with push button on front panel, the SIREN tone for an orderly emergency evacuation of people and conducting a fire or an emergency drill manually, and the CHIME tone for attracting listeners' attention prior to speaking.
5 MIC inputs, 3 AUX inputs, 2 EMC input,4 AUX outputs,features muting function that MIC1 overrides MIC2,MIC3,AUX1,AUX2 with 0~30dB dB attenuation.
It is designed for background music/paging and public address system installations,these units are exceptional values, loaded with features,and are easy to install in a variety of system designs.
Audio Preamplifier with Chime Tone
5 Mic Input Preamp
RH-AUDIO, a supplier of commercial pa speakersis committed to supply the customers with innovative products and services that conform to their requirements,our objective is always to meet or exceed their expectations.
Отправить запрос, связаться с поставщиком
Другие товары поставщика
 |
16 Zone Remote Microphone RH2816RT | The RH AUDIOMulti-zone Paging Micro RH2816RT provides high quality,low noise single and multi-zone paging capability up to 16-zone loudspeakers,can... |
 |
Audio Engineering Speakers for Sound Reinforcement RH-25 Series | Audio Engineering Speakerfor Sound Reinforcement RH-25 Series ※ 2-way wall mount speaker. ※ Three speaker sizes are available with separate woofer ... |
 |
16 Channel Digital Audio Matrix RH2816S | ※ 16X16 Digital Audio Matrix (3U panel). ※ With LCD screen in English menu. ※ With volume control for each zone. ※ This control unit integrates 16... |
 |
Best Sound Reinforcement Speaker RH-KT24 for Gardens | Best Sound Reinforcement SpeakerRH-KT24 for Gardens ※ Waterproof house and speaker diver with IP66 rating ※ Squirrel shape ※ 70V 100V transformer b... |
 |
Horn Speakers | The RH-AUDIO Horn Speakers are made from robust,virtually indestructible ABS or alloy enclosure,and adjustable alloy brackets offering maximum prot... |
Похожие товары
 |
YC160W Wheel excavator YC160W | Продавец: Guangxi Yuchai Equipment Technology Co., Ltd | YC160W Wheel excavator YC160W wheel excavator is a new generation of full hydraulic wheel excavat... |
 |
Yuchai U20 mini excavator | Продавец: Guangxi Yuchai Equipment Technology Co., Ltd | Yuchai U20 mini excavator Improvements in Over 80 Details: Tailless Excavator U20 is a Yuchai ... |
 |
Yuchai YC80 small excavator | Продавец: Guangxi Yuchai Equipment Technology Co., Ltd | Yuchai YC80 small excavator International brand engine It is equipped with Yanmar 4TNV98C natur... |
 |
Top Type Hydraulic Breaker | Продавец: Guangxi Yuchai Equipment Technology Co., Ltd | Top Type Hydraulic Breaker With the higher restriction of blasting control,hydraulic breakeris w... |
 |
S35-Electric Skid Steer Loader | Продавец: Guangxi Yuchai Equipment Technology Co., Ltd | S35-Electric Skid Steer Loader Yuchai S35 Electric Skid Steer Loaderis compact and flexible, des... |
