设计理念
The A48-ECO is designed for a wide range of electro-acoustic instruments and supports both 48V phantom power and external DC power supply operation.
Featuring an internal voltage-boosting circuit, it delivers increased dynamic headroom and enhanced overload handling capability, allowing it to
accommodate extremely high peak input levels without distortion.Combined with a selectable -15 dB PAD attenuation, it is well suited for
high-output instruments.
The built-in ground lift function effectively eliminates hum and background noise caused by ground loops. The THRU output allows simultaneous
connection to a stage amplifier, while the balanced XLR output supports long-distance signal transmission with minimal loss.
With clean sound quality, ultra-low distortion, and wide frequency response,the A48-ECO is an ideal signal interface solution for acoustic guitars, basses,keyboards, and other instruments in professional live sound and recording applications.
特点
- Multiple power options: 48V phantom power or external DC power supply
- Dedicated switching power boost circuit greatly improves dynamic headroom and overload capability
- Supports high peak input levels with minimal distortion, even for high-output instruments
- Equipped with selectable -15 dB PAD attenuation to prevent signal overload
- Ground lift function eliminates hum and noise caused by ground loops
- Balanced XLR output supports long-distance transmission without signal degradation
- Ultra-low distortion with wide frequency response for clean and transparent sound
规格
| 频率响应 | 20Hz~30kHz (± 1.5 dB) |
| 动态范围 |
99dB |
| 总谐波失真 |
0.001% @ 0 dBu |
| 输入阻抗 |
220k Ohms – 1/4″ Input |
| 输出阻抗 |
200 Ohms – XLR Output |
| 本底噪声 |
< 0dBu 82dB |
| Maximum Input Leve: | +9dBu |

