Bluetooth Power Amplifier Introduction
1:The product uses the latest Bluetooth BT4.0 module (CSR-BC7), effective reception distance of approximately 15 meters to 20 meters.
2:A2DP Multipoint Support
3:Standard:BT4.0,BLE,Class 1.5
Frequency Band:2.402G ~ 2.480G
4:Maximum Data Rate:3Mbps
5:For a variety of Bluetooth devices to receive.
6:Power amplifier modules ,use BTL class-D audio amplifier, Low power consumption, no heat sink?
20 W or40w or 100w continuous output power:
RL = 8 O, THD = 10% at VCC = 16 V
Wide-range single-supply operation (9 V - 16 V)
High efficiency (? = 90%)
Four selectable, fixed gain settings of
nominally 20 dB, 26 dB, 30 dB and 32 dB
Differential inputs minimize common-mode
noise
No ?pop? at turn-on/off
Standby and mute features
Short-circuit protection
Thermal overload protection
Key Functions:1:Play / Pause,Long press the button for 5 seconds Bluetooth is opened,Red green indicator lamp flashing alternately, search for Bluetooth devices (CSR-BC7), only the green light flashes, Bluetooth pairing success.?
2:The next choice key,Long press the button = increase volume,
3:The previous choice key, long press the button = volume reduction.?
4:Bluetooth the red and green indicator lamp flashing alternately?
5:Volume control potentiometer and power switch.
6:Two speakers connected,20W8ohm or 40W or 100w
7:DC input voltage:DC9-16V
The MM7025 is an ideal two-channel power amplifier with whopping 140W RMS into 8 ohms per channel. Use it in an AV setup to give your front channels an earth-moving boost or in combination with a HiFi Pre-Amplifier to create a high quality 2 Channel System. Current Feedback Current Feedback amplification is a well known, Marantz original circuit technology. The Current Feedback amplifier technology fits perfectly with the high requirements set for Super Audio software providing wide-bandwidth, high-speed reproduction. The impedance at the Current Feedback point is limited resulting in a very low phase shift. Marantz receivers and amplifiers equipped with Current Feedback can keep the phase compensation via Negative FeedBack (NFB) to a minimum, resulting in high through-rate, excellent transient response and superb sonic transparency for the full bandwidth. Unlike conventional Voltage Feedback amplification, the Current Feedback amplification makes the power amplifier in-sensitive to difficult loudspeaker loads. Customized Components On paper an electrical component might look excellent but the result may fall short of the combined design expectations. Marantz selects the appropriate components for the specific design application. In some cases its simply not possible to use standard components that meet the high Marantz standards. These components will then be specially made for Marantz in close cooperation with the Marantz engineers. DC-Trigger A DC trigger is an assignable voltage output which can automatically control for example an electrical projection screen, lowering it when the DVD input is chosen on the receiver. IR Flasher IN The IR-Flasher IN is a standardized connection to control the AV system by external IR receivers independent of the infra red control format used. On the IR-Flasher OUT an IR-Emitter can be connected to controlled third brand components. The third connection link to this is the IR-Receiver INPUT which is similar to the IR-Flasher In, but it outputs a voltage to directly feet an external IR-Receiver eye. Please check capability per product in the specification section. Linear drive power supply LDPS Marantz own technology to design a power supply capable to follow all details of an audio signal to reproduce the finest sound quality.
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