美国dbx:223 电子分频器_周边,电子分频器,处理器尽在香港百利恒国际有限公司

产品类别：分频器

产品名称：美国dbx:223 电子分频器

产品价格：面议
关键词：周边,电子分频器,处理器
产品说明：香港百利恒国际有限公司提供美国dbx:223 电子分频器产品信息,包括美国dbx:223 电子分频器产品详细介绍,美国dbx:223 电子分频器产品参数，3D图库等信息，显示的美国dbx:223 电子分频器图仅为参考,购买请以美国dbx:223 电子分频器实物为准.

美国dbx:223 电子分频器技术参数

dbx 223 电子分频器

TRS或XLR差分平衡入和输出

可选择立体声或由左右声道相加而合成的超低音

两通道均有x10范围选择开关

两个通道均有40Hz高通滤波器（低频切除）

所有的输出均带相位反转开关

所有频段上的输出电平均可独立调整

24dB/LinkWitz-Riley滤波器(专业标准)

立体声/单声道状态指示LED灯,表明单元的选择的工作模式

技术指标

输入：

接口：1/4寸TRS

类型：电子平衡/不平衡，带RF滤波器

阻抗：平衡>50k欧姆，不平衡>25k欧姆

最大输入电平：>+24dBu平衡或不平衡

共模抑制比CMRR：>40dB，典型值>50dB，1kHz

输出：

接口：1/4寸TRS

类型：阻抗平衡/不平衡，带RF滤波器

阻抗：平衡200欧姆，不平衡100欧姆

最大输出电平：接2k欧姆以上负载，>+21dBu平衡或不平衡

工作性能：

带宽：20Hz-20kHz，+0/-0.5dB

频响：<3Hz-90kHz，+0/-3dB

信噪比：

参考值：+4dBu，22kHz测量带宽

立体声模式单声道模式

低频输出：>94dB >94dB

中频输出： >93dB

高频输出：>92dB >92dB

动态范围：>114dB，未加权，任何输出

失真+噪声：<0.004%+4dBu，1kHz

<0.04%+20dBu，1kHz

通道间串扰：<-80dB，20Hz-20kHz

分频频率：

立体声方式：

中频/高频：45-960Hz或450-9.6kHz(x10设定)

单声道方式：

低频/中频：45-960Hz或450-9.6kHz(x10设定)

中频/高频：45-960Hz或450-9.6kHz(x10设定)

滤波器类型：LinkWitz-Riley 24dB/oct，静态可变

功能开关：

前面板：

低频切除：有源40Hz ButterWorth，12dB/oct高通滤波器，每通道一个开关。相位反转：反转输出信号相位，每个输出一个开关。

后面板：

x1/x10：将前面板所标的低频-中频（单声道：低频/低中频）分频范围乘因子1或10，每通道一个开关。

模式：选择立体声二分频或单声道三分频工作方式。在单声道方式下，所有控制LED显示灯不起作用。

低频合成信号：选择正常（立体声）或单声道左右合成信号输出，并且Ch 2的低频输出的相位反转LED 不起作用，它表明在该工作方式下此输出不工作。

显示：

立体声工作方式：绿色LED

单声道工作方式：黄色LED

低频切除：每个通道均带一个红色LED

x10：每个通道均带一个绿色LED

相位反转：每个输出（每通道2个）均带一个红色LED

电源：

工作电压：可开关转换：100-120 VAC

50/60Hz或200-240VAC 50/60Hz

功率消耗：20W

主电源插座：IEC插座

物理特性：

尺寸：1.75寸高x19寸宽x6.9寸厚（4.4cmx48.3cmx17.5cm）

净重：3.7 lBs(1.7kg)

出运重量：5.4 lBs(2.5kg)

Stereo 2-Way, Mono 3-Way Crossover

TRS balanced ins and outs, summed subwoofer output, 40Hz high pass filter on both channels, individual level controls and phase reverse switch on each output. Also features 24dB/octave Linkwitz-Riley filters.

Let's take a look at the construction features of the dbx 223. At first glance, you'll notice the units are great looking. As you turn the controls something else becomes apparent; these units are extremely well built. The controls exude great precision, and the feel is a solid "click." Also, when you open the box, you won't find the external power supply that accompanies most processors in this price range. That's because we know how difficult external power supplies can be to work with and even though it costs a little more we put the high quality power supply right in the unit. All the inputs and outputs are TRS differentially balanced 1/4" jacks that are bolted down to the chassis. This "nutting down" of the jacks insures that even if someone stomps on a cable plugged into the unit, it's not going to tear up the circuit board inside. All dbx crossovers all feature Linkwitz-Riley 24 dB per octave filters, the professional standard. But then again, what did you expect?

Via a switch on the back panel, you first select whether you're operating your system in stereo 2-way or mono 3-way. Then you also set, on the back panel, whether or not you want to mono sum the LF (subwoofer) out. (Most systems that use a subwoofer are mono subbed to take advantage of amplifier power and because low frequencies are non-directional.) Back panel switches allow you to select the range of the crossover frequencies individually for both channels. The crossover frequency controls have a green LED that indicates when the x10 switch on the back panel is activated (we wouldn't make you check the switch position on the back every time you wonder where it's set). All these switches are on the back panel because it could be disastrous if you were to change them mid-program. On the front panel you'll notice there are LEDs that indicate whether the unit is in mono or stereo mode. Each channel has an input gain control for proper level setting. There's a recessed 40 Hz low cut (HPF) on each channel to remove unwanted low frequencies. Both the low and high outputs on each channel have a gain control ranging from - to +6 dB to allow muting of individual outputs and for level matching. Also, these outputs each have phase reverse switches that will help get you out of a bind without having to reconfigure your system. These phase reverse switches may be internally reconfigured as mute switches.

You'll get great performance, all the features you'd expect from a professional product and the knowledge that you're buying a processor from the people that have been producing the worlds finest processors for over 20 years. The technology that made dbx famous brings you a dbx crossover that has been tested to the highest professional standards at a price that's just too low to admit!

Features

TRS differentially balanced ins and outs

Mode switch for stereo 2-way or mono 3-way operation

Low frequency summed (subwoofer) output

x10 range switch on both channels

40 Hz high pass (low cut) filter both channels

Phase reverse switch on all outputs

Individual level controls on all outputs

24 dB per octave Linkwitz-Riley filters (the professional standard)

Stereo/Mono status LEDs indicate the selected mode

dbx 2 year parts and labor as standard

CSA NRTL/C approved

CE compliant

Technical Info

Input

Connectors: 1/4" TRS

Type: Electronically balanced/unbalanced, RF filtered

Impedance: Balanced > 50 k, unbalanced > 25 k

Max Input Level: > +21 dBu balanced or unbalanced

CMRR: > 40 dB, typically > 50 dB at 1 kHz

Output

Connectors: 1/4" TRS

Type: Impedance-balanced/unbalanced, RF filtered

Impedance: Balanced 200 , unbalanced 100

Max Output Level: > +21 dBu balanced/unbalanced into 2 k or greater

Performance

Bandwidth: 20 Hz to 20 kHz, +0/-0.5 dB

Frequency Response: < 3 Hz to > 90 kHz, +0/-3 dB

Signal-to-Noise: Ref: +4 dBu, 22 kHz measurement bandwidth

Stereo Mode: Mono Mode:

Low Output: > 94 dB > 94 dB

Mid Output: > 93 dB

High Output: > 92 dB > 92 dB

Dynamic Range: > 114 dB, unweighted, any output

THD+Noise: < 0.004% at +4 dBu, 1 kHz

< 0.04% at +20 dBu, 1 kHz

Interchannel Crosstalk: < -80 dB, 20 Hz to 20 kHz

Crossover Frequencies

Stereo Mode:

Low/High: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting)

Mono Mode:

Low/Mid: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting)

Mid/High: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting)

Filter Type: Linkwitz-Riley, 24 dB/octave, state-variable

Function Switches

Front Panel:

Low Cut: Activates 40 Hz Butterworth, 12 dB/octave high-pass filter, one switch per channel.

Phase Invert: Inverts the phase at the output, one switch per output.

Rear Panel:

x1/x10: Multiplies the low-high(mono: low/mid and high/mid) crossover frequency range of the front-panel markings by a factor of 1 or 10, one switch per channel.

Mode: Selects stereo 2-way or mono 3-way operation and disables all LEDs for controls that are non-functional in the selected mode.

LF Sum: Selects normal (stereo) or mono-summed low frequency operation and disables Ch 2's low output phase invert LED to indicate that this output is not operational in the LF sum mode.

Indicators

Stereo Operation: Green LED

Mono Operation: Yellow LED

Low Cut: Red LED per channel

x10: Green LED per channel

Phase Invert: Red LED per output (2 per channel)

Power Supply

Operating Voltage: 100 VAC 50/60 Hz; 120 VAC 60 Hz 230 VAC50 HZ

Power Consumption: 15 Watts

Mains Connection: IEC 320 receptacle

Physical

Dimensions (H x W x D): 1.75 x 19 x 6.9 in. (4.4 x 48.3 x 17.5 cm)