Ampeg B1RE Stereo Amplifier User Manual
Contents
1. left of center for a contoured sound more distant less midrange output or to the right of center for a pronounced more up front tone 7 TREBLE This is the primary high fre quency control which allows for 18dB of boost or 23dB of cut at 8kHz 8 MASTER Set the overall output level of the amplifier with this control The Effects Loop and Bal Out 18 19 22 are not affected by the Master control 9 LIMITER The B1RE uses an internal Optocoupler Limiter to assist in keeping the power amplifier s output clean at extreme volume levels All amplifiers begin to clip their output signals as they approach maxi mum output levels resulting in distortion which may damage your speakers To engage the Limiter depress the Limit switch Whenever the amplifier is at full power the adjacent Limit LED will flash This is an indication that the limiter is keep ing peak signals from clipping the output NOTE Playing at full power with the Limiter off will give you increased output power but the sound may be distorted Use discretion when playing without the Limiter 10 ON This LED indicator illuminates when the POWER switch 11 is ON 11 POWER This heavy duty rocker switch applies the power to the amplifier The amp is ON when the top of the switch is depressed OFF when the bottom of the switch is depressed B1RE Bass Amplifier 5 The Rear Panel MADE IN THE U S A BY SLM ELECTRONICS 1400 FERGUSON2. AVENUE ST LOUIS MO 63133 RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE CAUTION 175W 8 OHMS 300W 4 OHMS 98689 13 12 20 22 14 15 16 21 19 18 17 12 FAN This temperature controlled vari able speed fan draws cool air into the amplifier which forces heat out through the exhaust vents Never block the vent holes or the fan opening 13 FUSE This protects the unit from dam age due to overload conditions or power line surges If the fuse blows replace it only with the same size and type 14 AC LINE IN The grounded power cord should only be plugged into a grounded power outlet that meets all applicable elec trical codes and is compatible with the volt age power and frequency requirements stated on the rear panel Do not attempt to defeat the safety ground connection 15 SPEAKERS Use these jacks to con nect the amplifier to your speaker s using high quality speaker cables terminated with 1 4 connectors NOTE When connecting multiple speaker cabinets to the B1RE keep the overall impedance at or above four ohms The following chart shows the total impedance load when connecting speaker cabinets in parallel 16 POWER AMP IN This mono jack allows you to feed the preamp output of another amplifier to the input of the B1RE s internal power a
3. fuse power switch Check house fusebox or circuit breaker SPEAKER S OK POOR SOUND SPEAKER S DEFECTIVE Check speaker Unplug bass touch tip of cable LOUD HUM Check inst pickup Speaker OK Replace cable NO CHANGE SEE BELOW SEE BELOW NO POWER OUTLET OK OK B1RE Bass Amplifier System Block Diagram INPUT PAD 12dB 20dB LIMIT LIMIT LED POWER AMP PROTECTION RELAY SPEAKER OUTPUT SPEAKER OUTPUT POWER AMP IN PREAMP OUT EFFECTS LOOP RETURN EFFECTS LOOP SEND THERMAL SHUTDOWN LOW VOLTAGE DC PROTECT COOLING FAN BAL OUT PRE POST MASTER GAIN PEAK BASS TREBLE ULTRA MID Ampeg reserves the right to change specifications without notice Ampeg is proudly Made in America 2004 SLM Electronics 1400 Ferguson Avenue St Louis MO 63133 U S A P N 47 843 01 111604 B1RE Bass Amplifier Technical Specifications OUTPUT POWER RATING 300 Watts RMS 4 ohm load 175 Watts RMS 8 ohm load POWER REQUIREMENTS Domestic 120VAC 60Hz 300VA Export 100 120VAC 50 60Hz 300VA 230 240VAC 50 60Hz 300VA TONE CONTROL RANGE Bass 14 13dB 40Hz Ultra Mid 5 11dB 350Hz Treble 18dB 23dB 8kHz GAIN 72dB SIGNAL TO NOISE RATIO 80dB typical SIZE AND WEIGHT 19 W x 3 25 H x 10 D 18 lbs www ampeg com
4. EN55103 or EN55013 and EN61000 FCC standards 47CFR 15 107 and 15 109 Class A C tick designation Level 2 ABN 56748810738 ARBN N222 KETI standard K60065 limited model approval Compliance Support Contact SLM Electronics Attn R amp D Compliance Engineer 1901 Congressional Drive St Louis Missouri 63146 Tel 314 569 0141 Fax 314 569 0175 B1RE Bass Amplifier 3 Thank you for making one of the best choices you will ever make for your musical career choosing one of the finest bass amplifiers available the Ampeg B1RE Your new B1RE bass amplifier provides many outstanding features in a compact package that takes up only two standard rack spaces Three hundred watts of pure bass energy total tone control and rugged construction help make this a true performer s bass amp In the world of high performance bass amps Ampeg amplifiers stand alone In true Ampeg tradition the B1RE offers you more power performance and flexibility than any other bass amplifier in its class The out standing features of your new amplifier features which set it apart from the competition are listed below THREE ROTARY EQ CONTROLS For quickly dialing in the tone you need BALANCED LINE OUTPUT XLR with independent level switch 20dB pad Patch into house consoles mixing boards or external power amplifiers EFFECTS LOOP For increased intensity and quieter operation of external effects POWER AMP IN and PREAMP OUT Allows d
5. PRECAUCION PARA REDUCIR EL RIESGO DE INCENDIOS O DESCARGAS ELECTRICAS NO PER MITA QUE ESTE APARATO QUEDE EXPUESTO A LA LLUVIA O LA HUMEDAD PARA DISMINUOIR EL RIESGO DE CORRIENTAZO NO ABRA LA CUBIERTA NO HAY PIEZAS ADENTRO QUE EL USARIO PUEDO REPARAR DEJE TODO MANTENIMIENTO A LOS TECHNICOS CALIFICADOS ATTENTION RISQUE D ELECTROCUTION NE PAS OUVRIR ATTENTION PROT GEZ CET APPAREIL DE LA PLUIE ET DE L HUMIDIT AFIN D VITER TOUT RISQUE D INCENDIE OU D LECTROCUTION POUR REDUIRE D ELECTROCUTION NE PAS ENLEVER LE COUVERCLE AUCUNE PIECE INTERNE N EST REPRABLE PAR L UTILISATEUR POUR TOUTE REPARATION S ADRESSER A UN TECHNICIEN QUALIFIE IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL ES NECESARIO QUE EL USUARIO SE REFIERA AL MANUAL DE INSTRUCCIONES REFERREZ VOUS AU MANUAL D UTILISATION EXPLANATION OF GRAPHICAL SYMBOLS EXPLICACION DE SIMBOLOS GRAFICOS EXPLICATION DES SYMB LES GRAPHIQUES DANGEROUS VOLTAGE VOLTAJE PELIGROSO DANGER HAUTE TENSION Declaration of Conformity Manufacturer s Name SLM Electronics Corporate Headquarters 1901 Congressional Drive St Louis Missouri 63146 Primary Production Facility 700 Hwy 202 W Yellville Arkansas 72687 Product Type Audio Amplifier Products meet the regulations for compliance marking under ETL standards UL6500 UL60065 or UL813 CSA standards E60065 or C22 2 No 1 M90 CE safety standard EN60065 CE EMC standards
6. TH VOLTAGE POWER AND FREQUENCY REQUIREMENTS STATED ON THE REAR PANEL OF THE APPARATUS PROTECT THE POWER CORD FROM DAMAGE DUE TO BEING WALKED ON PINCHED OR STRAINED UNPLUG THE APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME ONLY USE ATTACHMENTS ACCESSORIES STANDS OR BRACKETS SPECIFIED BY THE MANUFACTURER FOR SAFE OPERATION AND TO AVOID INJURY WARNING TO REDUCE THE RISK OF ELECTRIC SHOCK OR FIRE DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE SERVICE MUST BE PERFORMED BY QUALIFIED PERSONNEL OUR AMPLIFIERS ARE CAPABLE OF PRODUCING HIGH SOUND PRESSURE LEVELS CONTINUED EXPOSURE TO HIGH SOUND PRESSURE LEVELS CAN CAUSE PERMA NENT HEARING IMPAIRMENT OR LOSS USER CAUTION IS ADVISED AND EAR PROTECTION IS RECOMMENDED IF UNIT IS OPERATED AT HIGH VOLUME WARNING THIS UNIT REQUIRES A SAFETY GROUNDED OUTLET WIRED TO CURRENT ELECTRIC CODES HAVING THE LINE SUPPLY VOLTAGE POWER AND FREQUENCY IDENTIFIED ON THE REAR OF THE UNIT THE OUTLET MUST REMAIN ACCESSIBLE TO DISCONNECT THE UNIT IF A FAULT SHOULD ARISE WHILE IN USE THIS UNIT SHOULD BE UNPLUGGED WHEN NOT IN USE CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL PRECAUCION RIESGO DE CORRIENTAZO NO ABRA
7. User s Guide for the B1RE Bass Amplifier PEAK 12dB GAIN PAD BASS ULTRA MID TREBLE MASTER LIMIT INPUT ON POWER Made in the U S A by 2 TABLE OF CONTENTS Important Safeguards and Precautions 2 Introduction 3 Features 3 The Front Panel Controls and Their Use 4 The Rear Panel 5 Some Suggested Settings 6 Rack Mounting 6 Troubleshooting 7 System Block Diagram 7 Technical Specifications back cover IMPORTANT SAFETY INSTRUCTIONS READ FOLLOW HEED AND KEEP ALL INSTRUCTIONS AND WARNINGS DO NOT OPERATE NEAR ANY HEAT SOURCE AND DO NOT BLOCK ANY VENTILATION OPENINGS ON THIS APPARATUS FOR PROPER OPERATION THIS UNIT REQUIRES 3 75CM OF WELL VENTILATED SPACE AROUND HEATSINKS AND OTHER AIR FLOW PROVISIONS IN THE CABINET DO NOT USE THIS APPARATUS NEAR SPLASHING FALLING SPRAYING OR STANDING LIQUIDS CLEAN ONLY WITH LINT FREE DAMP CLOTH AND DO NOT USE CLEANING AGENTS ONLY CONNECT POWER CORD TO A POLARIZED SAFETY GROUNDED OUTLET WIRED TO CURRENT ELECTRICAL CODES AND COMPATIBLE WI
8. ace height of the amplifier Be sure to keep the feet and their attachment bolts for future use If the feet are reinstalled never use screws which will protrude farther into the amplifier than the original hardware The rack must be a high quality enclosure capable of securely supporting the weight of the amplifier Tighten the mounting screws securely through the amplifier s face plate into the rack rails Check the rack and mounting screws occasionally to ensure a continual ly safe and secure installation B1RE Bass Amplifier 7 Troubleshooting In the unlikely event that your B1RE should malfunction take a few minutes to troubleshoot it before you call for service You can save yourself a lot of time and sometimes money by doing it yourself and often the cure for the problem is some thing quite simple If the problem isn t covered above or if the steps lead you here then contact your Ampeg dealer for service infor mation Also you should refer your amp to an authorized service center for servicing if it gets dropped has liquid spilled into it or sustains damage to its power cord NO SOUND LEDs LIGHT POOR SOUND Check bass cables Check speaker s Replace speaker s POOR SOUND LEDs DON T LIGHT Check AC outlet NO SOUND NO HUM HUM Listen for hum NO CHANGE SOUND OK SOUND OK POOR SOUND SOUND OK SOUND OK SOUND OK Check amp controls check for signal from bass Check power cord
9. irect access into the power amp and a signal tap from the preamp section for even greater versatility MUSICIAN MADE IN THE U S A An introduction To Your New Ampeg B1RE Bass Amplifier Features B1RE Bass Amplifier 4 The Front Panel Controls and Their Use PEAK 12dB GAIN PAD BASS ULTRA MID TREBLE MASTER LIMIT INPUT ON POWER 1 2 3 4 5 6 7 8 9 10 11 1 INPUT Use this jack to connect your instrument to the amplifier by means of a shielded instrument cable 2 12dB PAD This switch when depressed attenuates the input signal by 12dB Attenuation allows the Gain control 4 to be used over a larger portion of its range If clip ping is indicated with the Gain control near minimum attenuation is needed 3 PEAK This LED illuminates when the signal level into the preamp approaches clipping Adjust the Gain control 4 until a strong signal from your instrument causes this LED to flash NOTE If the LED flashes frequently with the Gain at a low setting use the 12dB Pad 2 to attenuate the input signal and readjust the Gain 4 GAIN Use this control to adjust the input signal level For the best signal to noise ratio adjust this control until the Peak LED 3 flashes on strong signals 5 BASS This is the primary low frequency control which allows for 13dB of boost or 14dB of cut at 40Hz 6 ULTRA MID This is the primary midrange control Rotate the control to the
10. mp This bypasses the pre amp circuitry of the B1RE WARNING This jack goes directly into the power amplifier DO NOT connect high level signals to it 17 PREAMP OUT A post EQ signal may be taken from this jack and sent to the house mixing board recording console or external power amplifier 18 EFFECTS LOOP RETURN To use an external effects device connect the OUT PUT of the device to this jack by means of a shielded cable This feeds the processed signal into the Master section of the B1RE 19 EFFECTS LOOP SEND Connect the output from this jack to the INPUT of your effects by means of a shielded cable This sends a post EQ signal to your effects 20 20dB 0dB This switch sets the output level at the Bal Out jack 22 The control works independently from the front panel Master control Depressing the switch activates the 20dB pad The result is a signal that is more compatible with the microphone inputs on a mixer 21 POST PRE You can select either Pre or Post EQ for the signal at the Bal Out jack 22 with this switch With the switch in the OUT position the signal at the jacks will be Pre EQ This is a direct output not affected by any EQ or boost settings With the switch depressed the signal is Post EQ and is controlled and modified by the tone controls and Effects Loop 22 BAL OUT This XLR type connector supplies a balanced preamp output signal for connecting to a house mixing board recording co
11. nsole or external amplifiers with balanced inputs The signal can be set to Pre or Post EQ by the back panel Pre Post switch 21 The level can be adjusted for either mic or line type inputs using the 20dB 0dB switch 20 Cabinet of Total Impedance Cabs Impedance 8 2 4 16 2 8 16 4 4 WARNING The speaker output of this unit can exceed 10 Watts and could be a shock injury Connection to speakers should be performed by a skilled person in compliance with local building codes Class 2 wiring is required for speaker cables Use of external speakers outside the rat ings stated at the speaker jack may result in a shock injury or damage to the unit B1RE Bass Amplifier PEAK 12dB GAIN PAD BASS ULTRA MID TREBLE MASTER PEAK 12dB GAIN PAD BASS ULTRA MID TREBLE MASTER PEAK 12dB GAIN PAD BASS ULTRA MID TREBLE MASTER PEAK 12dB GAIN PAD BASS ULTRA MID TREBLE MASTER 6 Some Suggested Settings Rack Mounting JAZZ ROCK COUNTRY FUNK POPPING The setting of the Gain control depends on your particular instrument The Master should be set to produce the appropriate output volume level The Graphic EQ can be used to tailor the amplifier to your speaker cabinets to compensate for room acoustics and to fine tune your sound When mounting the B1RE into a rack the four bottom feet should be removed to maintain the two rack sp
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