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D. VS-2004/VS-1204 MONO/BRIDGE OPERATION

This method of operation bridges inputs and outputs and can 
be used with 8 ohm or higher applications only. This allows 
the VS-2004/VS-1204 to be used as a high power, stereo 

amplifier instead of quad operation. See to figure 2.

By bridging only one side of the VS-2004/VS-1204 (I.E. 

channels 3 & 4), the amplifier becomes a three channel 
amplifier. 
The configuration is then 1 pair mono bridged channel 

producing two times watts at 8 ohms and remain 2 of each 
channels are single output watts at 4 ohms per channel.

1. Set Mono/Bridge switch

 

Set the switch on the rear panel for channel you wish to 
operate in the bridge mode to the mono/bridge position. 
When the power is on, the mono/bridge LED on the front 
panel will light. If the LED does not illuminate, you have 
the mono/bridge switch in the wrong position. Change the 
appropriate switch before continuing. 

2. Input Source Lines 

With the power off, connect your input source lines to 
channels 1 or 3. 

3. Speaker Outputs

 

Connect speaker systems to speaker outputs only as shown 

in figure 2. The total speaker load for each bridged channel 

must be at least 8 ohms or above. If you try to operate at less 

than 8 Ohms in the bridge mode, the amplifier will go into 

protect mode and stop operation until you correct the load 
condition. 

4. Level Controls 

With all level controls set to 0, switch the power on. Apply 
a nominal signal to the inputs. The level of the input signal 
should be about as high as you will ever need it to be. This 

way, it will be as far above the amplifier's noise floor as 

possible, ensuring as excellent performance signal to noise 
ratio. Adjust the input level controls for channel 1&3 to 
achieve the desired maximum listening level or until the clip 

LEDs flash momentarily during program peaks, whichever 

is lowest. Having set the levels in this manner will render 
a clean signal at any level as long as the clip LEDs are not 
constantly on. Remember, when the clip LEDs light, there is 

distortion present in the amplifier's output section. 

D. VS-2004/VS-1204 모노 브릿지 모드 동작 방법

모노 브릿지 모드의 동작을 위해 8옴 이상의 부하들만을 사용해 
주십시오. 이는 VS-2004/VS-1204를 쿼드 동작 대신 높은 파워의 
스테레오로서 사용하기 위해서입니다. 그림 2 참조.
VS-2004/VS-1204의 한쪽을 브릿징 함으로써(가령 채널 3과 4를) 
VS-2004/VS-1204는 3 채널 앰플리파이어가 됩니다. 구성은 1개 
조로 구성된 모노 브릿지 채널 8옴에서 두배의 신호크기를 출력하
며 나머지 2개의 채널은 각각 4옴에서 단독 채널 신호크기를 출력
합니다. 

1. 모노 브릿지 스위치 

후면부의 모노/브릿지 스위치를 모노/브릿지 모드에 위치시킵니
다. 
전원이 켜지면 모노/브릿지 표시등이 켜져 있을 것입니다. 
만약 표시등이 꺼져 있다면 스위치가 잘못 위치한 것입니다. 스위
치를 올바르게 위치시켜 주십시오. 

2. 입력 신호 라인 

전원을 끈 상태에서 입력신호 라인을 채널 1 혹은 3에 연결해 주십
시오. 

3. 스피커 연결 

그림 2 와 같이 스피커 시스템을 스피커 출력부에 연결해 주십시
오. 서로 모노 브릿지된 각 채널당 스피커의 
합성 임피던스는 최소한 8Ω이 되어야 합니다. 
각 채널 당 로드 임피던스가 8Ω 이하일 때에는 본 기기가 동작하
지 않습니다. 

4. 볼륨 조절 

모든 볼륨 조절기를“0”에 놓고 전원을 켜 주십시오. 
그리고 입력 감도에 맞는 적정 수준의 입력신호를 입력하십시오. 
다음으로 본 기기의 채널 1 혹은 채널 3의 음량
조정 볼륨을 원하는 만큼 알맞게 조정하여 주십시오. 
이러한 방식은 우수한 신호 대 잡음비에 의해 앰프의 출력을 기본 
노이즈 플로어로부터 보다 우수하게 확보 할 수 있습니다. 클립 표
시등이 켜질 때까지 원하는 만큼 가장 높은 수준까지 볼륨을 조절
해 보십시오. 클립표시등이 켜지지 않게 이러한 방식으로 볼륨을 
조절하면 지속적으로 맑고 풍부한 음질을 유지할 수 있습니다. 클
립 표시등이 켜지면 앰프의 출력에 일그러짐이 발생한 것입니다. 

4.

 

Connecting Your System 

l

 

올바른 설치 방법

12

Содержание VS-1203

Страница 1: ...35 63 230 75 MONO PARALLEL MONO PARALLEL VS 1204 QUAD AMPLIFIER PARALLEL SHIFT PARALLEL SHIFT CH 1 CH 2 CH 3 SUB VS 2003 BI AMPLIFIER PROTECT PROTECT POWER CLIP 10 20 SIG CLIP 10 20 SIG CLIP 10 20 SIG...

Страница 2: ...5 3 Panel Description l 6 9 4 Connecting Your System l 10 18 5 System Hookup Diagram l 19 22 6 Block Diagram l 23 25 7 Specifications l 26 27 8 Warranty Information l 29 30 VS 2004 VS 1204 4 Channel P...

Страница 3: ...th variable frequency control that allow independent amplification of the full range stereo outputs and a mono bass output on a single unit The signal is then devided by active crossover filter to sep...

Страница 4: ...power company For appliances intended to operate from battery power or other sources refer to the operating instructions 8 Polarization If the appliance is equipped with a polarized alternating curren...

Страница 5: ...ols that are covered by the operating instructions as an improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the appli...

Страница 6: ...itions should occur such as a short in a speaker cable or connector or excessively high operating temperatures this LED will light and the amplifier will stop operation until the condition is correcte...

Страница 7: ...ter rolls of signals below either 30Hz or 50Hz This improves bass performance by limiting sub audio cone motions making more power available for the speaker rated frequency range The filter settings f...

Страница 8: ...er is being driven past normal power limits into distortion 4 Protect Indicator LED VS 2003 VS 1203 3 VS 1 1 2 2 3 4 3 Panel Descriptions l 8 FRONT PANEL l VS 2003 VS 1203 REAR PANEL SECTION l VS 2003...

Страница 9: ...ve for weakening level of mid bass frequency range because if have double level the sub sound frequency 11 Input filter Low Cut Filter CH3 Sub The low frequency HF filter rolls of signals below either...

Страница 10: ...your power amplifier is supplied with a three conductor grounded power cord and plug connect the unit only to a properly grounded mains outlet Do not use a ground lift adapter or otherwise attempt to...

Страница 11: ...nput signal should be about as high as you will ever need it to be This way it will be as far above the amplifier s noise floor as possible ensuring as excellent performance signal to noise ratio Adju...

Страница 12: ...Speaker Outputs Connect speaker systems to speaker outputs only as shown in figure 2 The total speaker load for each bridged channel must be at least 8 ohms or above If you try to operate at less than...

Страница 13: ...VS 2004 VS 1204 3 Speaker Outputs Connect speaker systems to speaker outputs as shown in figure 3 The total speaker load for each channel must be at least 4 ohms or higher E VS 2004 VS 1204 3 1 2 VS...

Страница 14: ...ply a nominal signal to the inputs The level of the input signal should be about as high as you will ever need it to be This way it will be as far above the amplifier s noise floor as possible ensurin...

Страница 15: ...inal to the red connector of output Connect the CH 4 speaker s negative terminal to the black connector of output Note that the speaker load impedance must be 4 ohms or greater Connection For Bridged...

Страница 16: ...r 45 clockwise to lock it in place Output Connection Table l Output Function l Connector l Pins l Left CH 1 1 1 Right CH 2 1 1 Sub Mono CH 3 1 1 Connection for Stereo 2 Way Sub woofer Operation Connec...

Страница 17: ...from the AC power source before making any connections When connecting your speakers using either method be sure to pay close attention to proper polarity Although connecting your speaker systems out...

Страница 18: ...rrectly for the mode of operation you wish to use before powering up the amplifier 3 Parallel LED VS 2004 VS 1204 ONLY The parallel LED will light when you have set the rear panel switch to the parall...

Страница 19: ...5 0 15 15 0 15 15 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 15 15 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 15 15 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 15 15 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 15 0 15 15 0 OL...

Страница 20: ...0 OL 10 0 20 15 15 0 15 15 0 15 15 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 15 15 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 15 15 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 15 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 1...

Страница 21: ...5 0 15 15 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 15 15 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 15 15 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 15 15 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 15 15 0 15 15 0 OL 10 0...

Страница 22: ...5 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 15 15 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 15 15 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 15 15 0 15 15 0 OL 10 0 20 15 15 0 15 15 0 15 15 0 15 15 0 OL 10 0 20 15 15...

Страница 23: ...23 6 Block Diagram l VS 2004 VS 1204 VS 2003 VS 1203 SMPS BLOCK...

Страница 24: ...CURRENT SPLITTER CURRENT SPLITTER CURRENT SPLITTER CURRENT SPLITTER AB AB AB AB CH 1 OUTPUT CH 2 OUTPUT BRIDGE 1 OUTPUT CH 3 OUTPUT CH 4 OUTPUT BRIDGE 2 OUTPUT HI FREQ RECTIFIERS ST BY 15V SWICH MUTE...

Страница 25: ...ONTRL DC FAULT DETECTOR CH 1 CH 2 CH 3 FROM CURRENT SPLITTER TO CURRENT SPLITTER THERMAL BIAS SENSING MUTE CONTROL CURRENT SPLITTER CURRENT SPLITTER CURRENT SPLITTER POSITIVE STEP POSITIVE STEP AB CLA...

Страница 26: ...Signal To Noise Ratio l A weighted RMS 100 Residual Noise l LPF level minimum 68 69 Damping Factor 8 50 l 300 Slew Rate 8 1 Rated Output l 52 V sec 40 4V usec Channel Separation 8 1 Rated Output l 65...

Страница 27: ...th 3 Roll Off by Filter On l CH 1 2 60 or 90 30 CH 3 20 250 Signal To Noise Ratio l A weighted RMS 100 Residual Noise l LPF level minimum 68 Damping Factor 8 50 l CH 1 2 300 CH 3 350 Slew Rate 8 1 Rat...

Страница 28: ...Note 28...

Страница 29: ...ARRANTY 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 its opt...

Страница 30: ...8 1 STK 1 AS STK STK STK Professional Audio A S 30 FOR YOUR RECORDS 1 STK 250 2 TEL 032 525 1788 1790 FAX 032 525 1784 E mail stkcom stkpro com www stkpro com...

Страница 31: ......

Страница 32: ...Owner s Manual for The STK VS series 2 Channel Power Amplifier Printed In Korea STK Professional Audio DEC 2013...

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