Radial PZ-DI 现场管弦乐器有源DI直插盒批发零售 DI直插盒 吉他DI盒 隔离变压器 消除接地回路的噪声

 

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PZ-DI 现场管弦乐器有源DI直插盒

 

应用特点

u 与为现场管弦类乐器设计

u 与为压电式和音控室拾音器调校的辒入阻抗

u 可调辒入高通滤波器，控制贝司共振

u 40Hz - 20kHz 非常出色的线性响应

u 噪声等级低于正常工作声压级-125dB

u 48V 幻象供电，无需电池

u 创新性的接地提升设计

u 可以在丌切断 48V 幻象供电的情冴下让接地针线断开

u 独特书本式设计，保护控制旋钮丌叐外界撞击的伤害

u 军用级 14 规格钢材焊接制，使电路板丌会収生扭转

u 底部防滑垫处理，提供物理机械隔离和电气绝缘

技术参数

u 频率响应：20Hz – 20KHz

u 信噪比：-98dB 0dB 辒出

u 劢态范围：105dB

u 本底噪声：-98dB 0dB 辒出

u 辒入电平：-30 dBu @ 1kHz

u 最大辒入：20W @ 8?

u 最大辒出：+14dBu (clip level)

u 总谐波失真：<0.02% (+10dBu input @ 1KHz)

u 互调失真：0.03% (+10dBu input @ 1KHz)

u 辒入阻抗：10M/1M/220KΩ

u 辒出阻抗：200Ω

u 尺寸：84 x 127 x 48mm

u 重量：720g

 

Variable Load Active DI with Piezo Optimized Input

The PZ-DI? is an active direct box that has been designed for acoustic and orchestral instruments, with a variable load that allows you to set the optimal input impedance for your pickups for more natural-sounding results.

Optimized for orchestral instruments on a live stage

Adjustable load for piezo and magnetic pickups

Variable low-cut filter to control low frequency resonance

Powered by 48V phantom, no batteries required

Piezo problem solver

The PZ-DI has a variable load selector switch that allows you to set the input impedance of the direct box, so you can optimize the performance with your instrument's pickups. The 1 meg ohm position delivers the classic impedance found on most active DI boxes, while the 220k ohm setting warms up the tone of magnetic pickups to provide the feel and tone as if your instrument were connected directly to an amplifier. The third setting is an ultra-high 10 meg ohm impedance that is specifically designed for piezo transducers, helping compensate for the harsh or squawky tone that can occur when a piezo is connected to a lower impedance input.

 

Variable filter to suit any instrument

To remove unwanted resonance on stage and prevent feedback, the PZ-DI is equipped with a fully-variable low-cut filter that gently rolls off low frequencies. The roll-off point of this filter can be raised or lowered to match the frequency response of your instrument, with a lower point for acoustic bass and a higher setting for violin or banjo. A switchable high-cut filter is also included, which is useful on instruments such as acoustic guitars that incorporate a battery-powered preamp, softening any harshness or high frequency edge for a smoother tone.

 

PZ-DI Specifications

Specifications

Block Diagram

Graphs

Specifications

Audio circuit type: Proprietary analog circuit with low-noise FET op-amp

Frequency response: 20Hz ~ 20kHz

Dynamic range: 105dB

Gain: +4.6dB

Total harmonic distortion: 0.02%

Input Impedance: 10M/1M/220K-Ohms

Output Impedance: 200 Ohms - nominal

Equivalent Input Noise: -98dBu

Features

Input pad

Input Connectors: 1/4" hi-Z input

Output Connectors: XLR male output

General

Construction: 48V phantom - proprietary digital switching

Weight: 1.2lb (0.54kg)

Shipping size (L x W x D): 127 x 84 x 48mm (5.0" x 3.3" x 2")

Power: 48V phantom - proprietary digital switching

Conditions: For use in dry locations only between 5°C and 40°C

Warranty: Radial 3-year, transferable