Ampeg Bass heads V50H User Manual

							Owner’s Guide
for the
V-50H Guitar Amplifier
Made in the
U.S.A.
by 
						

							THEFRONTPANEL:
1. Power switchis used to turn the amplifier
on and off.
2. Power lightindicates the amplifier is
turned on by glowing an iridescent blue color.
3. Reverbcontrols the amount of reverbera-
tion applied to the signal. 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.4. Bassadjusts the output level of the low fre-
quencies and offers a cut or boost of 24dB at
50Hz.
5. Mid adjusts the output level of the middle
frequencies and offers a cut or boost of 16dB
at 800Hz.
6. Trebleadjusts the output level of the high
frequencies and offers a cut or boost of 12dB
at 6kHz.
7. Gain controls the overall output level of the
amplifier. At lower volume settings the soundwill be clean. As you push the volume higher
and crank your guitar the sound becomes dis-
torted.
8. -6dB Inputaccepts a standard 1/4” instru-
ment plug from high output electronic instru-
ments. This input is padded 6dB to compen-
sate for higher output sources.
9. 0dB Input accepts a standard 1/4” instru-
ment plug from your electric guitar. This input
is at 0dB level. 
THE REAR
PANEL:
10. Main Speaker jack: Use this jack to con-
nect the amplifier to your speaker cabinet.
Always use this jack “first” – if using a second
cabinet, connect it to the Extension Speaker
jack (#11).
11. Ext. Speaker jack:Use this jack to con-
nect the amplifier to a secondspeaker cabinet
– always use the Main Speaker jack (#10)
“first.”
12. Impedance switch:Use this switch tomatch the amplifier to the TOTAL impedance
of your speaker cabinet(s).
13. Preamp Tube:12AX7A / 7025 (1)
14. Power Amp Phase Splitter Tube:
12AX7A / 7025 (1)
15,16. Power Tubes:EL34 / 6CA7 (2)
Replace tubes ONLY with same types! Refer
to enclosed publication about Tubes and Tube
Amplifiers for additional information.
17: Footswitch Jack:Connect the suppliedfootswitch here for control of the Reverb on/off
and a switchable 15dB of gain from 250Hz to
8kHz.
18: Power cordconnects the amplifier to a
suitable source of A.C. voltage. This is a
grounded, three-wire cord and must be con-
nected to a properly grounded outlet. DO NOT
attempt to defeat the ground connection of
the power cord!If your amp was purchased
outside of the United States, see the sticker
next to the A.C. connector for its power rat-
ings. Follow the above guidelines.
Thank you for choosing Ampeg. In order to obtain the best performance from your new ampli-
fier we recommend you review the information in this owner’s guide prior to its use.
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V-50H Guitar Amplifier
CAUTION
AVIS: RISQUE DE CHOC
ELECTRIQUE. NE PAS OUVRIR.RISK OF ELECTRIC SHOCK
DO NOT OPEN
Made in the U.S.A. bySLM ELECTRONICS1400 FERGUSON AVE. / ST. LOUIS, MO 63133WARNING: TO REDUCE THE RISK OF FIRE
OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE. 
SPEAKERS
MAIN:
USE FIRST
FOOTSWITCH
REVERB / BOOST ON–OFF EXT
IMPEDANCE
16 8
101112131415161817 
						

							THIS EQUIPMENT HAS BEEN
DESIGNED AND  ENGINEERED
TO PROVIDE SAFE AND RELI-
ABLE OPERATION. IN ORDER
TO PROLONG THE LIFE OF THE
UNIT AND PREVENT ACCIDEN-
TAL DAMAGES OR INJURY,
PLEASE FOLLOW THESE PRE-
CAUTIONARY GUIDELINES:
CAUTION:TO REDUCE THE
RISK OF ELECTRIC SHOCK, DO
NOT OPEN CHASSIS; DO NOT
DEFEAT OR REMOVE THE
GROUND PIN OF THE POWER
CORD; CONNECT ONLY TO A
PROPERLY GROUNDED AC
POWER OUTLET.
WARNING:TO REDUCE THE
RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOIS-
TURE.
CAUTION:NO USER-SERVICE-
ABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SER-
VICE PERSONNEL.
CAUTION:OUR AMPLIFIERS
ARE CAPABLE OF PRODUCING
HIGH SOUND PRESSURE LEV-
ELS. CONTINUED EXPOSURE
TO HIGH SOUND PRESSURE
LEVELS CAN CAUSE PERMA-
NENT HEARING IMPAIRMENT
OR LOSS. USER CAUTION IS
ADVISED AND EAR PROTEC-
TION IS RECOMMENDED IF
UNIT IS OPERATED AT HIGH
VOLUME.CAUTIONRISK 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.
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 DUTILISATION
UNBEDINGT IN DER BEDIENUNGSANLEITUNG NACHSCHLAGENEXPLANATION OF GRAPHICAL SYMBOLS:
EXPLICACION DE SIMBOLOS GRAFICOS:
EXPLICATION DES SYMBÔLES GRAPHIQUES:DANGEROUS VOLTAGE
“VOLTAJE PELIGROSO”
DANGER HAUTE TENSION
GEFAHLICHE SPANNUNG==
PRECAUCIONRIESGO 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
ATTENTIONRISQUE DELECTROCUTION
NE PAS OUVRIR
ATTENTION: POUR REDUIRE DELECTROCUTION NE PAS
ENLEVER LE COUVERCLE. AUCUNE PIECE INTERNE NEST REPRABLE
PAR LUTILISATEUR. POUR TOUTE REPARATION, SADRESSER A UN
TECHNICIEN QUALIFIE.
VORSICHTELEKTRISCHE 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.
ESTE APARATO  HA SIDO  DISE-
NADO Y CONSTRUIDO PARA
PROVEER ANOS DE OPERA-
CION SEGURA Y CONFIABLE.
PARA PROLONGAR LA VIDA DE
ESTA UNIDAD E IMPEDIR
DANOS ACCIDENTALES  POR
FAVOR SIGA ESTAS INSTRUC-
CIONES PREVENTIVAS:
PRECAUCION:PARA DISMINUIR
EL RIESGO DE DESCARGAS
ELECTRICAS: (1) NO ABRA LA
CUBIERTA, (2) NO ES
RECOMENDABLE REMOVER O
DESACTIVAR LA PATA DEL
POLO A TIERRA DEL CABLE  DE
CORRIENTE, CONECTE COR-
RECTAMENTE A UNA TOMA DE
CORRIENTE A TIERRA.
ADVERTENCIA:PARA EVITAR
DESCARGAS EL ECTRICAS O
PELIGRO DE INCENDIO, NO
DEJE ESTE APARATO
EXPUESTO A LA LLUVIA O
HUMEDAD.
PRECAUCION: NO HAY PIEZAS
ADENTRO QUE EL USUARIO
PUEDE REPARAR. DEJE TODO
MANTENIMIENTO A LOS TÉCNI-
COS CALIFICADOS.
PRECAUCION:NUESTROS
AMPLIFICADORES PUEDEN
PRODUCIR NIVELES DE PRE-
SION DE SONIDO ALTO.
EXPOSICION CONTINUADA A
LOS NIVELES DE PRESION DE
SONIDO ALTO PUEDE CAUSA
DANO PERMANENTE A SU
OIDO. ES ACONSEJADO QUE
USE PRECAUCION AL USUARIO
Y ES RECOMENDADO PROTEC-
CION PARA LOS OIDOS SI LA
UNIDAD ES OPERADA A VOLU-
MEN ALTO.CET ÉQUIPEMENT AVAIT ÉTÉ
INVENTÉ ET ARRANGÉ POUR
POURVOIR DES ANNÉES
DUSAGE SAUF ET SÛR.  POUR
PROLONGER LA VIE DE CET
APPAREIL ET POUR EMPÊCHER
LES DOMMAGES ET LES TORTS
ACCIDENTELS, SUIVEZ LES
INSTRUCTIONS DE PRÉCAU-
TION.
AVERTISSEMENT:POUR
RÉDUIRE LES RISQUES DÉLEC-
TROCUTION: (1)  N’OUVREZ
PAS LE CHÂSSIS, (2)  NE PAS
ESSAYER DE SUPPRIMER LA
BROCHE CORRESPONDANT À
LA TERRE.
ATTENTION: POUR RÉDUIRE
LES RISQUES DUN FEU OU
DÉLECTROCUTION, N’EX-
POSEZ PAS LAPPAREIL À LA
PLUIE OU À LA MOITEUR.
ATTENTION:IL NY A PAS
D’ÉLÉMENTS RÉPARABLES
DANS LAPPAREIL.  CONSULTER
UN TECHNICIEN QUALIFIÉ
POUR LES RÉPARATIONS.
ATTENTION:NOS AMPLIFICA-
TEURS SONT CAPABLES DE LA
PRODUCTION DES NIVEAUX DE
SON DUNE HAUTE PRESSION.
LEXPOSITION CONTINUE AUX
CES NIVEAUX PEUT CAUSER
LA SURDITÉ PERMANENTE.  LA
PRUDENCE EST ADVISÉ À UTIL-
ISATEUR ET LA PROTECTION
DES OREILLES EST RECOM-
MANDÉ SI LAPPAREIL EST
UTILISÉ À UN HAUT NIVEAU DE
VOLUME.
The V-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.
El V-50H esta cubierto con un material durable Tolex: limpielo con una toalla seca. Nunca rocie
el gabinete con sustancias limpiadoras. Evite usar materiales abrasivos con los cuales
pueda danar el acabado.
Le V-50H est couvert avec «Tolex» un revêtement noir et durable.  Essuyez cette matière avec
une toile propre et sans charpie.  Ne pulvérisez jamais les agents de nettoyage sur lappareil.
Evitez les nettoyeurs abrasifs qui peuvent endommager le «Tolex.» 
						

							Ampeg is proudly Made in America.
©1997 SLM Electronics, 1400 Ferguson Avenue, St. Louis, MO 63133 U.S.A.
V-50H TECHNICAL SPECIFICATIONS:
OUTPUT POWER RATING50 Watts RMS @ 5 % THD 8 ohm load 120 VAC
SIGNAL TO NOISE RATIO70dB Typical
POWER REQUIREMENTS120 VAC, 60Hz, 110VA
100/115 VAC, 50/60Hz, 110VA
230 VAC, 50/60Hz, 110VA
GAIN69dB 
TREBLE12dB Boost and Cut @ 6kHz 
MID16dB Boost and Cut @ 800Hz 
BASS24dB Boost and Cut @ 50Hz 
SIZE AND WEIGHT29.5” W x 11.5” H x 9” D
34 lbs.
Ampeg continually develops new products, as well as improves existing ones. For this reason,
the specifications and information in this manual are subject to change without notice.
Ampeg continuamente desarrolla nuevos productos, así como también mejora los existentes. Por esta razón,
las especifaciones é información incluidos en este manual están sujetos a cambios sin previo aviso.
Ampeg développe continuellement des nouvels produits, ainsi daméliorer ceux qui existe.  Pour cette
raison les spécifications et les informations dans ce manuel peuvent se changer sans préavis.
P/N 47-277-16 • 09/97