音频
| 输出阻抗 |
30000 Ω |
| 输出电平 |
2.4 mV |
| 频率范围 |
20 - 20000 Hz |
| 输入阻抗 |
22000 Ω |
| 输入灵敏度 |
1.2 mV |
| 动态功率每声道（6欧姆） |
170 W |
| 动态功率每声道（8Ohm） |
140 W |
| 峰值功率每通道 |
170 W |
| 阻尼系数 |
100 |
| 总谐波失真 |
0.03% |
端口 & 界面
| 线路输出（RCA） |
5 |
| AC（电源）输入 |
Y |
| XLR 音讯连接输入端口 |
Y |
5 x 140W / 5 x 170W, 8 / 6 Ohm, 105 dB, 440 W, 440 x 384 x 184.5mm, 15.2 kg
The new MM7055 is the five-channel option in this year’s extended line-up of main amplifiers. Based on the technology used in the MM8003 and using the exact same chassis, it delivers a thumping 140W rms into 8 ohm to each of the channels, while the ultra-wide bandwidth current feedback technology easily handles the highest SACD frequencies – this also makes it ideal for the high definition DTS Master Audio and Dolby TrueHD formats too. The result? Totally precise tonal and image balance, speed and dynamics. And on top of all that, you also get XLR audio inputs, DC triggers and a Marantz control bus system for remote on/off. There’s even a stylish new display screen showing the actual output power. This is power and convenience to take your breath away.
<b>Current Feedback</b>
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.
<b>Customized Components</b>
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 it’s 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.
<b>DC-Trigger</b>
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.
<b>IR Flasher IN</b>
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.
<b>Linear drive power supply</b>
LDPS - Marantz own technology to design a power supply capable to follow all details of an audio signal to reproduce the finest sound quality.
