R-50H TECHNICAL SPECIFICATIONS
OUTPUT POWER RATING |
50 Watts RMS @ 10 % THD 8 ohm load 120 VAC |
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SIGNAL TO NOISE RATIO |
65dB Typical |
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POWER REQUIREMENTS |
Domestic |
100/120 VAC, 60 Hz, 115VA |
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Export: |
100/115 VAC, 50/60 Hz, 115VA |
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230VAC, 50/60Hz, 115VA |
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GAIN |
60 dB Clean channel, 95 dB Overdrive channel |
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TREBLE |
24 dB Range @ 5 kHz Clean channel |
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24 dB Range @2kHz Overdrive Channel |
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MID |
8 dB Range @ 700 Hz |
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BASS |
24 dB Range @ 40 Hz |
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TUBE COMPLEMENT |
Power Amp: EL34 (2); Preamp: 12AX7A (3) |
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SIZE AND WEIGHT |
29.75”W x 11.25” H x 9.5”D, 34.2 lbs. |
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The R-50H is covered with a durable Tolex material: wipe it clean with a lint-free cloth. Never spray cleaning agents onto the cabinet. Avoid abrasive cleansers which would damage the finish.
CAUTION |
RISK OF ELECTRIC SHOCK |
DO NOT OPEN |
CAUTION: 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
PRECAUCION 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: 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.
VORSICHT |
ELEKTRISCHE SCHLAGGEFAHR |
NICHT OFFENEN |
VORSICHT: ZUR MINIMIERUNG ELEKTRISCHER SCHLAGGEFAHR NICHT |
DEN DECKEL ABENHMEN. INTERNE TEILE KONNEN NICHT VOM |
BENUTZER GEWARTET WERDEN. DIE WARTUNG IS QUALIFIZIERTEM |
WARTUNGSPERSONAL ZU UBERLASSEN. |
THIS EQUIPMENT HAS BEEN |
ESTE APARATO HA SIDO DISE- |
CET ÉQUIPEMENT AVAIT ÉTÉ |
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DESIGNED AND ENGINEERED |
NADO Y CONSTRUIDO PARA |
INVENTÉ ET ARRANGÉ POUR |
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TO PROVIDE SAFE AND RELI- |
PROVEER ANOS DE OPERA- |
POURVOIR DES ANNÉES |
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ABLE OPERATION. IN ORDER |
CION SEGURA Y CONFIABLE. |
D'USAGE SAUF ET SÛR. POUR |
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TO PROLONG THE LIFE OF THE |
PARA PROLONGAR LA VIDA DE |
PROLONGER LA VIE DE CET |
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UNIT AND PREVENT ACCIDEN- |
ESTA UNIDAD E IMPEDIR |
APPAREIL ET POUR EMPÊCHER |
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TAL DAMAGES OR INJURY, |
DANOS ACCIDENTALES POR |
LES DOMMAGES ET LES TORTS |
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PLEASE FOLLOW THESE PRE- |
FAVOR SIGA ESTAS INSTRUC- |
ACCIDENTELS, SUIVEZ LES |
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CAUTIONARY GUIDELINES: |
CIONES PREVENTIVAS: |
INSTRUCTIONS DE PRÉCAU- |
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CAUTION: TO REDUCE THE |
PRECAUCION: PARA DISMINUIR |
TION. |
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AVERTISSEMENT: POUR |
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RISK OF ELECTRIC SHOCK, DO |
EL RIESGO DE DESCARGAS |
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NOT OPEN CHASSIS; DO NOT |
ELECTRICAS: (1) NO ABRA LA |
RÉDUIRE LES RISQUES D'ÉLEC- |
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DEFEAT OR REMOVE THE |
CUBIERTA, (2) NO ES |
TROCUTION: (1) N’OUVREZ |
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GROUND PIN OF THE POWER |
RECOMENDABLE REMOVER O |
PAS LE CHÂSSIS, (2) NE PAS |
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CORD; CONNECT ONLY TO A |
DESACTIVAR LA PATA DEL |
ESSAYER DE SUPPRIMER LA |
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PROPERLY GROUNDED AC |
POLO A TIERRA DEL CABLE DE |
BROCHE CORRESPONDANT À |
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POWER OUTLET. |
CORRIENTE, CONECTE COR- |
LA TERRE. |
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WARNING: TO REDUCE THE |
RECTAMENTE A UNA TOMA DE |
ATTENTION: POUR RÉDUIRE |
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CORRIENTE A TIERRA. |
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RISK OF FIRE OR ELECTRIC |
ADVERTENCIA: PARA EVITAR |
LES RISQUES D'UN FEU OU |
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SHOCK, DO NOT EXPOSE THIS |
D'ÉLECTROCUTION, N’EX- |
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EQUIPMENT TO RAIN OR MOIS- |
DESCARGAS EL ECTRICAS O |
POSEZ PAS L'APPAREIL À LA |
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TURE. |
PELIGRO DE INCENDIO, NO |
PLUIE OU À LA MOITEUR. |
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CAUTION: NO USER-SERVICE- |
DEJE ESTE APARATO |
ATTENTION: IL N'Y A PAS |
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EXPUESTO A LA LLUVIA O |
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ABLE PARTS INSIDE. REFER |
HUMEDAD. |
D’ÉLÉMENTS RÉPARABLES |
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SERVICING TO QUALIFIED SER- |
PRECAUCION: NO HAY PIEZAS |
DANS L'APPAREIL. CONSULTER |
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VICE PERSONNEL. |
UN TECHNICIEN QUALIFIÉ |
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CAUTION: OUR AMPLIFIERS |
ADENTRO QUE EL USUARIO |
POUR LES RÉPARATIONS. |
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PUEDE REPARAR. DEJE TODO |
ATTENTION: NOS AMPLIFICA- |
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ARE CAPABLE OF PRODUCING |
MANTENIMIENTO A LOS TÉCNI- |
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HIGH SOUND PRESSURE LEV- |
COS CALIFICADOS. |
TEURS SONT CAPABLES DE LA |
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ELS. CONTINUED EXPOSURE |
PRECAUCION: NUESTROS |
PRODUCTION DES NIVEAUX DE |
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TO HIGH SOUND PRESSURE |
SON D'UNE HAUTE PRESSION. |
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LEVELS CAN CAUSE PERMA- |
AMPLIFICADORES PUEDEN |
L'EXPOSITION CONTINUE AUX |
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NENT HEARING IMPAIRMENT |
PRODUCIR NIVELES DE PRE- |
CES NIVEAUX PEUT CAUSER |
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OR LOSS. USER CAUTION IS |
SION DE SONIDO ALTO. |
LA SURDITÉ PERMANENTE. LA |
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ADVISED AND EAR PROTEC- |
EXPOSICION CONTINUADA A |
PRUDENCE EST ADVISÉ À UTIL- |
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TION IS RECOMMENDED IF |
LOS NIVELES DE PRESION DE |
ISATEUR ET LA PROTECTION |
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UNIT IS OPERATED AT HIGH |
SONIDO ALTO PUEDE CAUSA |
DES OREILLES EST RECOM- |
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VOLUME. |
DANO PERMANENTE A SU |
MANDÉ SI L'APPAREIL EST |
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OIDO. ES ACONSEJADO QUE |
UTILISÉ À UN HAUT NIVEAU DE |
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USE PRECAUCION AL USUARIO |
VOLUME. |
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Y ES RECOMENDADO PROTEC- |
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CION PARA LOS OIDOS SI LA |
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UNIDAD ES OPERADA A VOLU- |
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MEN ALTO. |
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EXPLANATION OF GRAPHICAL SYMBOLS: |
"DANGEROUS VOLTAGE" |
"IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL" |
EXPLICACION DE SIMBOLOS GRAFICOS: |
= “VOLTAJE PELIGROSO” |
= “ES NECESARIO QUE EL USUARIO SE REFIERA AL MANUAL DE INSTRUCCIONES.” |
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"DANGER HAUTE TENSION" |
"REFERREZ-VOUS AU MANUAL D'UTILISATION" |
EXPLICATION DES SYMBÔLES GRAPHIQUES: |
"GEFAHLICHE SPANNUNG" |
"UNBEDINGT IN DER BEDIENUNGSANLEITUNG NACHSCHLAGEN" |
Specs and other information subject to change without notice.
Ampeg is proudly Made in America. ©1997 SLM Electronics, 1400 Ferguson Avenue, St. Louis, MO 63133 U.S.A.
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P/N 47-277-15 • 02/97
THE FRONT PANEL:
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15 |
1 |
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6 |
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1.Power switch turns the main power on and off. Always turn this switch on first, off last.
Turn the Standby switch (#2) on at least 30 seconds after turning on the Power switch.
2.Standby switch activates the amplifier when ready for play. Always turn this switch off first, on last. Turn the Power switch (#1) on at least 30 seconds before turning on the Standby switch. During short breaks of use, turn the Standby switch off, leaving the Power switch on. This will help prolong the life of the amplifier’s tubes.
IMPORTANT! PLEASE NOTE: Always connect the amplifier to a suitable speaker cabinet and set the Impedance switch (#18) to the proper setting BEFORE turning the amplifier on!
THE REAR PANEL:
BOTH CHANNELS
3.Power light indicates the amplifier is turned on by glowing an iridescent blue color.
4.Channel Select activates the clean channel in the down position and the overdrive channel in the up position. When a footswitch is connected (see #5), this switch is bypassed and has no affect.
5.Footswitch allows “remote control” of the channel selection and reverb on/off. Insert the stereo 1/4” plug of a two-button footswitch (such as Ampeg’s AFP-2) here. The “tip” connection controls channel switching, the “ring” controls the reverb.
6.Line In serves as the “return” jack of an effect loop, when connected to the output jack of a floor pedal or rack-mounted processor. This jack can double as a direct-into-the amplifier signal feed when using the amp as a “slave” or extension amplifier.
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16.Main Speaker jack: Use this jack to connect the amplifier to your speaker cabinet. Always use this jack “first” – if using a second cabinet, connect it to the Extension Speaker jack (#17).
17.Ext. Speaker jack: Use this jack to connect the amplifier to a second speaker cabinet – always use the Main Speaker jack (#16) “first.”
18.Impedance switch: Use this switch to match the amplifier to the TOTAL impedance of your speaker cabinet(s). Use the following chart to determine the total impedance (in parallel):
CABINET |
NUMBER OF |
TOTAL |
IMPEDANCE |
CABINETS |
IMPEDANCE |
16 ohms |
2 |
8 ohms |
19. AC Line In: Use the supplied power cord to connect the amplifier to a suitable source of A.C. voltage. This is a grounded, three-wire cord and must be connected to a properly grounded outlet.
DO NOT attempt to defeat the ground connection of the power cord! See the serial number label for power ratings.
BOTH CHANNELS
OVERDRIVE CHANNEL
7.Line Out serves as the “send” jack of an effect loop, when connected to the input jack of a floor pedal or rack-mounted processor. This jack can double as a signal output for connecting directly to a house sound console, recording console, powered monitor or external amplifier.
8.Reverb controls the amount of reverberation applied to both channels. With the control at the “0” position there is no reverb applied; as the control is turned towards “10” the amount of reverb increases accordingly.
9.Master controls the output volume level of the overdrive channel. This control works with the Gain control (#14) to produce sounds from slightly distorted to screaming and everything in between.
10.Bass adjusts the output level of the low frequencies for both channels. This control offers a cut or boost of 24dB at 40Hz for both channels.
11.Mid adjusts the output level of the middle frequencies for both channels. This control offers a cut or boost of 8dB at 700Hz for both channels.
12.Treble adjusts the output level of the high frequency range for both channels. This control offers a cut or boost of 24dB at 5kHz for the clean channel, 24dB at 2kHz for the overdrive channel.
13.Volume controls the output level of the clean channel.
14.Gain sets the amount of overdrive distortion for the overdrive channel. This control works along with the Master control (#9).
15.Each Input accepts a standard 1/4” instrument plug from your electric guitar. The right input is at 0dB level while the left input is padded 6dB to compensate for higher output sources.
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MODEL: R-50H
SERIAL: Q2ZZ650022
LINE: 120 V ~ 60 Hz
WATTS: MAX
IMPORTANT NOTE ABOUT CERTAIN EXPORT UNITS: In some areas 1/4” speaker jacks are not acceptable for use on amplifiers capable of high output power levels. For this reason the Speaker jacks on your amplifier may resemble the illustration to the right. Connect the amplifier to your speaker(s) using cables rated for very high output power, terminated with the appropriate connectors.