3B-4B SST2 OM 电路图.pdf

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1、3BSST2 4BSST2 OWNERS MANUAL RadioFans.CN 收音机爱 好者资料库 IMPORTANT SAFETY INSTRUCTIONS The lightning flash with arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of un-insulated “dangerous voltage “ within the products enclosure that may be of sufficient magni

2、tude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. 1. Read these instructions. 2. Keep t

3、hese instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturers instructions. 8. Do not install near any heat sources such as radiators,

4、heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide

5、blade or the third prong are provided for your safety. If the pro- vided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where t

6、hey exit from the apparatus. 11. Only use attachments/accessories specified by the manufacturer. 12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used use caution when moving the cart/apparatus combination to avoid

7、 injury from tip-over. 13. Unplug this apparatus during lightning storms or when unused for long periods of time. 14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power- supply cord or plug is damaged, liquid has be

8、en spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE. DO NOT EXPOSE THIS EQUIPMENT TO DRIPPING

9、OR SPLASHING AND ENSURE THAT NO OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES, ARE PLACED ON THE EQUIPMENT. TO COMPLETELY DISCONNECT THIS EQUIPMENT FROM THE AC MAINS, DISCONNECT THE POWER SUPPLY CORD PLUG FROM THE AC RECEPTACLE. THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL REMAIN READILY OPERABLE. BRY

10、STON LIMITED WARRANTY Bryston analog audio products are warranted to be free from manufacturing defects for twenty (20) years from the original date of manufacture. The warranty includes parts and labour. Bryston digital products and cables are warranted for five years from the original date of manu

11、facture. The warranty includes parts and labour. Bryston products having motorized moving parts, excluding motorized volume controls, are warranted for three years from the original date of manu- facture. The warranty includes parts and labour. Bryston will remedy the problem by repair or replacemen

12、t, as we deem necessary, to restore the product to full performance. Bryston will pay return shipping only for the full length of the specific products warranty. In the event of a defect or malfunction, contact Brystons repair centers for return authorization. Products must be returned using origina

13、l packaging material only. Packing material may be purchased from Bryston if necessary. This warranty is considered void if the defect, malfunction or failure of the product or any component part was caused by damage (not resulting from a defect or malfunction) or abuse while in the possession of th

14、e customer. Tampering by persons other than factory authorized service personnel or failure to fully comply with Bryston operating instructions voids the warranty. This warranty gives you specific legal rights and you may also have other rights which may vary from province to province and country to

15、 country. As of 2006-02-22 Bryston will only warranty Bryston products purchased through authorized Bryston dealers. Bryston products with a date code of 0608 or higher (date code format is “yyww”, where “yy” is the two least significant digits of the year and “ww” is the week of the year) must be a

16、ccompanied by a copy of the bill-of-sale from a Bryston authorized dealer to qualify for warranty service. The warranty is transferable from the original owner to a subsequent owner as long as a copy of the bill-of-sale from the original authorized Bryston dealer accompanies the re-sale. The copy of

17、 the bill of sale to any subsequent owner need ONLY include the Name of the Bryston Authorized Dealer and the Model and Serial number of the Bryston product The warranty will only be honored in the country of the original purchase unless otherwise pre-authorized by Bryston. Postal address: P .O. BOX

18、 2170, Stn. Main PETERBOROUGH, ONTARIO CANADA K9J 7Y4 Courier address: 677 NEAL DRIVE PETERBOROUGH, ONTARIO CANADA K9J 6X7 PHONE: 705-742-5325 FAX: 705-742-0882 E-mail: 79 COVENTRY ST., Suite 5 NEWPORT, VERMONT U.S.A. 05855-2100 PHONE: 802-334-1201 FAX: 802-334-6658 E-mail: BRYSTON SERVICE in CANADA

19、:BRYSTON SERVICE in the USA: contact your local distributor or CHECK OUR WEB SITE: E-MAIL BRYSTON DIRECTLY: FAX BRYSTON DIRECTLY: 01-705-742-0882 PHONE BRYSTON DIRECTLY: 01-705-742-5325 BRYSTON SERVICE outside Canada and the USA: RadioFans.CN 收音机爱 好者资料库 TABLE of CONTENTS Safety Instructions, Warrant

20、y and Contact Information .Opposite General Information .Page 1 Introduction 3BSST2 Description 4BSST2 Description Shipping & Packing Materials Ventilation WiringtheAmplifier A/C Power Power Conditioners Front Panel .Page 2 Power Switch LED Indicators Rear Panel & Inputs/Outputs .Page 3 Input Select

21、 Switch Balanced Input Connector Single-ended Input Connector Input Sensitivity Switch MODE Switch (Bridged vs. Individual mode) Level Control Outputs (Binding Post Connectors) Circuit Breaker .Page 4 A/C Power Inlet External Control Voltage Power-Up Bridged Mode .Page 5 Technical Specifications .Pa

22、ge 6 3BSST2 Exterior Dimensions .Page 7 4BSST2 Exterior Dimensions .Page 8 GENERAL INFORMATION INTRODUCTION Thank you for choosing an SST2 SERIES Stereo Power Amplifier. Bryston welcomes any suggestions you may have, or comments regarding the operation of your amplifier. We consider you, our custome

23、r, to be Brystons most important resource, and your opinion is very much appreciated. DESCRIPTION 3BSST2 The 3BSST2 is a dual mono design audio power amplifier with two channels of 150W each. Each channel has switch select- able balanced and single ended inputs and independent gain selections of 29d

24、B or 23dB. These SST2 amplifiers also have SoftStart power control circuitry to eliminate high inrush currents when A/C power is applied. The power-up or turn-on of the 3BSST2 may be activated by the push-button switch located on the front panel or by hard wired remote control voltage. DESCRIPTION 4

25、BSST2 The 4BSST2 is a dual mono design audio power amplifier with two channels of each. Each channel has switch selectable balanced and single ended inputs. Each channel also has switch selectable gains of 29dB(1v) or 23dB(2v). The 4BSST2 includes SoftStart power control circuitry to eliminate high

26、inrush currents when A/C power is applied. The power-up or turn-on of the 4BSST2 may be activated by the push-button power switch on the front panel or via hard wired remote control voltage. SHIPPING BOX & PACKING MATERIAL Please keep the original shipping box and all packing material. This will ens

27、ure the amplifier is protected in future transport. In the unlikely event you have a problem and must return it for service you must use the proper packing material. Ship the amplifier only in the original packing material, as the unit is not insurable by carriers otherwise. Replacement packing mate

28、rials, consisting of a shipping carton with plastic foam inserts, is available from Bryston. VENTILATION The most important installation consideration is ventilation. All SST2 amplifiers are convection cooled. Unrestricted air-flow across its heat sinks is a must. For this reason do not install anyt

29、hing directly above it. Allow at least 3.5 inches (2 rack units of 1.75 each) of space above and 1 to either side of this amplifier. Do not install directly above other heat generating equipment. Should your instillation conditions be constricted, then additional forced air-cooling may be necessary.

30、 Bryston can provide an optional fan package if required. Any SST2 channels thermally shutting down during operation indicates insufficient air flow, and a remedy must be found for cooling the amplifier. Provide a minimum 6” space to the rear of the amplifier for ventilation and dressing cables to a

31、nd from the amplifier. Never operate the amplifier in a vertical position. WIRING THE SST2 AMPLIFIER (also see rear panel description) Speaker wires should be as short as practical. Use quality wire, and if runs are more than 3 meters use at least 12 gage wire. The speaker binding posts will accept

32、wire up to 3 gage in size. Bryston will custom build cables for your application. A/C POWER Before plugging in the power cord be sure your SST2 amplifier is specified for the correct a/c voltage for your locality. The voltage is listed on the label found at the upper right of the rear panel. The cir

33、cuit feeding the 4B SST2 should be suf- ficient so as not to cause the circuit breaker to trip. For example, the 4B SST2 when operated with both channels deliver- ing maximum power into 4 ohm loads will consume all the available power in a normal North American residential circuit (15 Amps), therefo

34、re a dedicated electrical circuit may be necessary with this situation. Never lift the safety ground to the amplifier nor remove the ground pin from the plug. POWER CONDITIONERS Bryston urges caution in choosing a power conditioner for your audio/video system. Large power amplifiers can draw very su

35、bstantial current from the wall plug, and many so-called power conditioners can in fact hinder the supply of current by inserting resistances in series with the line cord. However, there are now power conditioners that can reduce or eliminate RF and hash from the AC supply and may actually improve c

36、urrent delivery to your system. This type of power condi- tioner (exemplified by TORUS Power Conditioners) uses the energy storage in a large toroidal transformer to provide high instantaneous power and reduce the substantial AC output resistance of the wall socket and house wiring. This resistance

37、can be in the range of 0.5 to 1 Ohm and is typically reduced to only a few milli-ohms by the Power Conditioner. That in turn considerably reduces Voltage drop in the power line on high current surges and quite substantially increases the stability of the power line improving audio (and video) focus,

38、 precision and clarity. FRONT PANEL 1. POWER SWITCH The front panel label is a push-on/push-off type push-button power switch used to apply or remove a/c line power to the SoftStart circuitry. Note that the rear circuit breaker must be on for the amplifier to power-up. 2. LED INDICATORS Each SST2 ch

39、annel has a LED indicator to monitor the following conditions: Unlit - indicates channel has no power. Red - indicates channel is muted (power-up) GReen - indicates channel operation is normal. FlashinG Red - indicates channel clipping. ORanGe - indicates channel thermal shutdown. POWER UP SEQUENCE

40、After pushing the power switch ( in the picture above), each channel LED will turn from unlit to red (mute). When the power supplies have stabilized the channel will come out of mute and the LED will change to green (normal operation). UNLIT LED ( No power ) The SST2 channel LED when unlit indicates

41、 no A/C mains power is present at the channel. If both channel LED indicators are unlit the amplifier probably needs only to be powered on. CLIPPING ( flashing red ) Clipping occurs when the channel output level no longer can follow the level increase at the input (Over driven input condition). When

42、 an SST2 channel is driven into clipping the channel LED will change from green to red then back to green when the level is reduced ( Flashing Red ). Momentary clipping can be tolerated, however it indicates that maximum undistorted power has been surpassed and potential speaker damage may result if

43、 overload conditions persist. Any amplifier that is constantly operated into clipping indicates a more powerful amplifier is needed for that application. THERMAL SHUTDOWN ( orange ) Each channel has thermal shutdown circuitry to prevent damage due to overheating. Should thermal shutdown occur, the c

44、hannel will mute, and the channel LED will turn orange indicating this condition. When the channel has cooled to a safe operating condition the channel will return to normal operation. Persistent Thermal shut- down indicates steps need to be taken to increase airflow across the channel or channels h

45、eat sink. ( Also see installation section on ventilation ). N.B. In some markets the LED indicators, which are normally red/green, may be red/blue instead. When red/blue LEDs are supplied green is replaced with blue and orange is replaced with magenta in the above descriptions. REAR PANEL & INPUT/OU

46、TPUT CONNECTIONS 1. INPUT SELECT SWITCH Each SST2 channel gives the user the option of switching between either balanced input or single ended input. 2. BALANCED INPUT CONNECTOR This input connector accepts standard XLR (pin 1 = Gnd, pin 2 = Positive, pin 3 = Negartive) or 1/4” Phone plugs (sleeve =

47、 Gnd, tip = Positive, ring = Negative). Use quality, 100% shielded cables with gold plated connectors. 3. SINGLE ENDED INPUT This input connector accepts standard RCA or Phono connectors. Use quality, 100% shielded cables with gold plated connectors. Balanced input Vs Single ended input: The balance

48、d input requires a balanced pre-amp source. Balanced systems provide noise rejection from external electrical interference, so cable length can be very long ( 50m or longer ). The single ended or unbalanced input is provided for pre-amps without balanced output. Single-ended cables should be kept to 20 (7m) or less. In general never use l