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32

7.

 

Professional Operating Tips

 

l

 

전문적인 동작 방법

MIXER

EQUALIZER

HIGH AMP

MID AMP

LOW AMP

3-WAY ACTIVE CROSS OVER

TRI-AMP READY

SPEAKER CABINET

TO

TWEETER

TO

HORN

TO

WOOFER

FIGURE 2. Audio System Using An Active Crossover  l  

그림 2. 액티브 크로스오버를 사용한 오디오 시스템

crossover must be used. You will notice in figure 2 that an 
active system also requires the use of a separate amplifier for 
each component in the speaker system.
A 2-way system would require two power amplifiers. This is 
called bi-amping. A 3-way system is called tri-amping and a 
4-way system is called quad-amping.
A speaker system using an active crossover must be bi-amp 
or tri-amp, etc ready. In other words, each component would 
require its own input from the jack plate. These multiple 
inputs are typically labeled low, mid and high as opposed to 
full range. Many speaker systems provide both.

용하는 것을 보여주고 있습니다. 
2-웨이 시스템은 2대의 파워 앰프를 필요로 합니다. 이를 바이-앰
프라고 부릅니다. 3-웨이는 트라이-앰프, 4웨이는 쿼드-앰프라고 
부릅니다. 
액티브 크로스오버를 사용하는 스피커 시스템은 바이-앰프이거나 
트라이-앰프(또는 그이상)입니다. 달리 말해서 각 컴포넌트는 각각
의 입력 단자를 패널을 가지고 있다고 할 수 있습니다. 풀-레인지 
시스템에서 이런 입력 단자들에는 따로 저주파, 중주파, 고주파 등
의 라벨을 붙여 표시해 두는 것이 좋습니다. 많은 스피커 시스템들
은 이러한 것들을 지원하고 있습니다. 

3. Passive VS. Active Crossover Systems

What are the advantages and disadvantages of both active 
and passive crossovers? Figure 3. Describes a few pros and 
cons about both methods of frequency routing. In order to 
extract maximum performance from a sound system, an 
active crossover is clearly the effective choice or the audio 
professional. 
The setup diagrams in the following section will help to 
better understand the features and benefits of your new 
active crossover. What is the most important reason to use an 
active crossover? 
The answer is definitely cleaner sound. When you use a 
passively crossed over system, one power amplifier is being 
used to amplify the full range audio signal, all the way from 
the deepest note of the pipe organ and the percussive thud of 
a big bass drum to the delicate trill of the piccolo flute. 
The majority of the amplifier's power is used up amplifying 
the bass frequencies of the music. 
In a case where the amplifier is pushed to the pont of 
distortion, the treble frequencies will be the first to exhibit 
signs of problems. They will sound fuzzy, grainy, harsh and 
objectionable, even though they were not the sounds causing 
the amplifier to run out of power. The solution is to use a 
separate amplifier for lows, mids and highs. This way, if a 

3. 패시브 VS. 액티브 크로스오버 시스템

액티브와 패시브 크로스오버의 장단점은 무엇일까요. 그림-3에 두
가지 주파수 전달 방법의 특징을 표시해 두었습니다. 사운드 시스
템으로부터 최대 성능을 끌어내기 위해, 액티브 크로스오버는 탁월
한 선택임에 분명합니다. 
본 매뉴얼에 나와있는 연결 구성도는 액티브 크로스 오버 사용의 
장점을 더욱 쉽게 알 수 있도록 도와드릴 것입니다. 그럼, 액티브 
크로스오버를 사용하는 가장 주된 이유는 무엇일까요?
그것은 바로 깨끗한 사운드입니다. 패시브 시스템에서 한대의 파워 
앰프로 풀-레인지 오디오 신호를 모두 증폭하게 됩니다. 깊은 소리
의 파이프 오르간에서부터, 큰 베이스 드럼, 경쾌한 피콜로까지의 
모든 소리를 말입니다.
파워 앰프의 주된 문제 발생 원인은 음악의 베이스 주파수의 증폭
입니다. 앰프의 출력이 일그러짐이 발생하게 되는 곳에서 3중 주파
수가 가장 먼저 문제를 나타냅니다. 앰프가 허용 가능한 파워 내에
서 동작하고 있을 지라도 부글부글하고 거칠고 고약하고 불쾌한 소
리가 납니다.
해결 방법은 앰프의 동작을 저주파, 중주파, 고주파로 나누는 것입
니다. 이 방법은 큰 베이스 신호가 저주파 앰프에 문제를 일으키더
라도 중주파와 고주파의 음향은 아무런 문제가 발생하지 않게 해 
줍니다. 그리고 전체적인 음향은 더욱 크고 더욱 깨끗해집니다.

Содержание VC-23

Страница 1: ...C 23 VC 34 Active Crossover OWNER S MANUAL VC 34 3 Way Stereo 4 or 5 Way Mono Crossover VC 23 OUTPUT PIN 1 GND 2 HOT 3 COLD 3 2 Level LOW OUTPUT LOW OUTPUT Level Level Level MID OUTPUT Level LOW OUTPU...

Страница 2: ...ty Instructions l 4 5 3 Panel Description l 6 12 4 Connecting Your System l 13 14 5 Operating Your System l 15 29 6 Care and Maintenance l 30 7 Professional Operating Tips l 31 33 8 System Hookup Diag...

Страница 3: ...three way crossover with an additional mono subwoofer output making it a four way crossover Similar to the VC 23 the VC 34 can be used as a mono four or five way crossover Both of these units feature...

Страница 4: ...sources refer to the operating instructions 8 Polarization If the appliance is equipped with a polarized alternating current line plug a plug having one blade wider than the other this plug will fit i...

Страница 5: ...of other controls may result in damage and will often require extensive work by a qualified technician to restore the appliance to its normal operation e If the appliance has been dropped or the cabi...

Страница 6: ...tput level of the selected low frequency range Mono Controls output level of the selected mono low frequency range 6 Frequency Range Selector Switch Multiplies the frequency selected on the frequency...

Страница 7: ...ch is in the 600 Hz to 13 kHz position 13 Channel A Mid Frequency Selector VC 34 Only Stereo Selects crossover frequency determining where the channel A mid frequency band terminates and the high freq...

Страница 8: ...ctual clipping Mono This LED is inactive when the VC 23 VC 34 are used in the mono configuration 22 Channel B Low Frequency Output Level Control Stereo Controls channel B output level of the selected...

Страница 9: ...the out position the frequency range is from 60 Hz to 1 3 kHz In the in position the frequency range is from 600 Hz to 13 kHz 29 Frequency Range Indicator LED VC 34 Only The LED will light when the f...

Страница 10: ...for parallel mono operation Mono 3 way This jack is inactive when the VC 23 is used in the mono configuration 5 Mono Subwoofer Output The mono signal from the sub bass filter is present at this output...

Страница 11: ...r connection to the input of the channel B high frequency amplifier Mono The mono high frequency signal is present at this output for connection to the input of the high frequency amplifier 14 Channel...

Страница 12: ...nal is present at this output for connection to the input of the channel A mid frequency amplifier Mono The mono low mid frequency signal is present at this output for connection to the input of the l...

Страница 13: ...your unit is supplied with a grounded power cord and plug connect the unit only to a properly grounded AC outlet Do not use a ground lift adapter or attempt to defeat the ground on the plug Failure to...

Страница 14: ...est in one of the many higher quality low impedance mics available on the market or alternatively purchase an impedance matching transformer from your dealer 2 1 4 Phone Input Jacks These tip sleeve j...

Страница 15: ...way speaker systems that have separate inputs available for the high and low frequencies 1 Power amplifier to reproduce the very low or sub bass frequencies 1 or 2 subwoofer speaker systems 3 Stereo 3...

Страница 16: ...end such as an unbalanced phone plug on one end and an XLR on the other 3 Connect Low Frequency Output Connect the channel A low frequency output of the crossover to the left or channel 1 input of th...

Страница 17: ...y input of your right side speaker system 9 Connect High Frequency Driver Connect the left or channel 1 speaker output from the high frequency power amplifier to the high frequency input of your left...

Страница 18: ...et Crossover Frequency On the front panel turn your channel A low high VC 23 or low mid VC 34 frequency control to the crossover frequency recommended by your speaker system manufacturer as outlined a...

Страница 19: ...mid frequency output 5 Check Frequency Range Selector Switch The yellow indicator light will indicate the crossover frequency range selector switch is in the in position once power has been switched o...

Страница 20: ...ard left or to the off position As you are operating in the stereo mode the mono mode indicator light on your VC 23 or VC 34 should not be illuminated 11 Set Input Level Controls Now you are ready to...

Страница 21: ...r is functioning properly without changing your output level settings and without having to walk up to each speaker system to specifically listen to each driver The mute switch functions in the in pos...

Страница 22: ...more subwoofer speaker systems 3 Mono 4 Way Operation VC 34 The mono 4 way system will require the following equipment to be connected to the outputs of the VC 34 1 or more amplifiers to reproduce th...

Страница 23: ...h different connectors on each end such as an unbalanced phone plug on one end and an XLR on the other 3 Connect Low Frequency Output Connect the channel A low frequency output of the crossover to the...

Страница 24: ...eaker systems 12 Connect High Mid Frequency Speakers Connect the speaker outputs from the high mid frequency power amplifier to the high mid frequency speaker inputs of your speaker systems 13 Connect...

Страница 25: ...to the crossover frequency recommended by your speaker system manufacturer as outlined above This frequency will be the minimum at which your mid frequency speaker can safely operate You may wish to...

Страница 26: ...quencies VC 34 On the front panel turn your low to low mid frequency control to the crossover frequency recommended by your speaker system manufacturer as outlined above This frequency will be the min...

Страница 27: ...id To High Crossover Frequency On the front panel turn the high frequency control to the recommended crossover frequency This frequency will be the minimum at which your high frequency driver or tweet...

Страница 28: ...and proper gain structure procedures when using any sound system but it is of particular importance when using this device This section will help you learn correct gain adjustment procedures Once you...

Страница 29: ...h speaker is functioning properly without changing your output level settings and without having to walk up to each speaker system to specifically listen to each driver The mute switch functions in th...

Страница 30: ...icals to clean the unit A large clean paint brush is useful to remove accumulated dust between the many control knobs on the front panel If liquids are accidentally spilled on to the unit disconnect t...

Страница 31: ...tweeter it would probably destroy the delicate lightweight membrane or diaphragm that enables it to accurately reproduce the sizzle of the cymbal While you probably will not damage a woofer by running...

Страница 32: ...bes a few pros and cons about both methods of frequency routing In order to extract maximum performance from a sound system an active crossover is clearly the effective choice or the audio professiona...

Страница 33: ...ertion loss Adjustable crossover frequencies More headroom cleanest sound Very low distortion Steeper 24 dB per octave slopes minimize Phase cancellation between speakers Power handling increases slig...

Страница 34: ...OKUPS NOT USED SET SWITCH TO MONO TO TWEETER TO MID HORN TO DUAL 15 WOOFERS TO DUAL 18 SUBWOOFERS V 6 HIGH AMP V 6 MID AMP V 12 Plus LOW V 12 Plus SUBWOOFER NOT USED OFF INPUT LEVEL 5 8 HIGH LEVEL 8 H...

Страница 35: ...9 Block Diagram l VC 23 3 Way Mono l VC 23 3 35...

Страница 36: ...36 9 Block Diagram l VC 23 2 Way Stereo l VC 23 2...

Страница 37: ...9 Block Diagram l VC 34 4 Way Mono l VC 34 4 37...

Страница 38: ...38 9 Block Diagram l VC 34 3 Way Stereo l VC 34 3...

Страница 39: ...d In Out Unbalanced In Out XLR 1 4 Phone Jack XLR Impedance Balanced Input Unbalanced Input Output 10 10 100 10 10 100 Maximum Input Output Level Input Output Gain Clip Light Threshold Indicators 20 d...

Страница 40: ...Hz 60 13kHz 60 250Hz 24dB 24dB 24dB 24dB In Out In Out XLR 1 4 XLR 10 10 100 10 10 100 dB 20 dBm 12 dBm 3 dB 10 20 dBm 12 dBm 3 dB 10 120 230V AC 50 60Hz 15W 120 230V AC 50 60Hz 15W H W D mm inch 44 4...

Страница 41: ...EAR WARRANTY STK electronics are warranted to be free from defects in materials and workmanship under normal use for a period of 1 year from date of original purchase During that period STK will at it...

Страница 42: ...11 1 STK 1 AS STK STK STK Professional Audio A S 42 FOR YOUR RECORDS 1 STK 543 15 3 21104 TEL 032 525 1788 1790 FAX 032 525 1784 E mail stkcom stkpro com www stkpro com...

Страница 43: ......

Страница 44: ...Owner s Manual For The STK VC Series Active Crossover Printed In Korea STK Professional Audio NOV 2018...

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