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PB250
PortaBass Amp Head
In the world of high performance bass amps, Ampeg amplifiers stand alone. In true Ampeg tradition, the PB250
offers you more power , performance and tone than any other bass amplifier in its class. The outstanding features
which set your new amplifier apart from the competition are listed below.
• MDT POWER AMP: Micro Dynamic Technology amplifier circuitry provides maximum power in a
small lightweight package – the efficiency of this design eliminates the need for heavy heat sinks,
transformers and filter capacitors
• FOUR BAND ROTARY EQ: Four bands of equalization and shift controls for the Low and High Mid
provides optimum tone control
• ULTRA LOW, ULTRA HIGH SWITCHES: Enhances flexibility and tone control
• EFFECTS LOOP: Send and Return jacks are combined with an Effects Blend control for virtually
noise-free use of your favorite effects
• TRANSFORMER BALANCED LINE OUTPUT: XLR jack with level control, ground lift, and a
pre/post-EQ switch – for patching into house consoles, mixing boards, or external power amplifiers
• SPEAKON®AND 1/4” SPEAKER OUTPUT JACKS: Compatible with either type of connecting cable
• MADE WITH PRIDE IN THE U.S.A.
Features
Important Safeguards and Precautions:
All Ampeg products are designed for continuous safe operation, as long as common sense is used and steps are taken to help avoid certain
problems. Abiding by the following rules can help prevent damage to your amplifier, yourself, and others.
• The amplifier is equipped with a three-pronged AC power cord. To reduce the risk of electrical shock, NEVER remove or otherwise
attempt to defeat the ground pin of the power cord.
• Connect the amplifier ONLY to a properly grounded AC outlet of the proper voltage for your amp.
• Avoid sudden temperature extremes, rain and moisture. Also, avoid sudden and intense impact. (If the unit has been subjected to
any of the preceding abuses, have it looked at by an authorized service center.)
• NEVER set the amplifier on a support that might give out under its weight.
• Always keep the total speaker impedance at or above the rated load.
• Unplug the amplifier before cleaning it. NEVER spray liquid cleaners onto the amplifier. Wipe it with a slightly dampened, lint-free
cloth to remove dirt and film.
• Do not use the amplifier if it has sustained damage to the chassis, controls, or power cord. Refer the unit to an authorized service
center for inspection.
• Amplifiers capable of producing high volume levels are also capable of inflicting permanent hearing loss or damage, if the exposure
to such levels is prolonged. Such damage is progressive and irreversible! Consider using quality hearing protection devices.
Declaration Of Conformity
#41, Effective 02-01-2002
Manufacturer’s Name: SLM Electronics
Production Facility: 11880 Borman Drive, St. Louis, MO 63146, USA
Production Facility: 700 Hwy 202 W, Yellville, AR 72687, USA
Shipping Facility: 1400 Ferguson Ave., St. Louis, MO 63133, USA
Office Facility: 1400 Ferguson Ave., St. Louis, MO 63133, USA
Product Type: Audio Amplifier
Complies with Standards:
LVD: 92/31/EEC, 93/68/EEC, & 73/23/EWG
Safety: EN60065
EMC: EN55013, EN55020, EN55022, EN61000-3-2,
& EN61000-3-3
Supplementary information provided by:
SLM Electronics - R & D Engineering
1901 Congressional Drive, St Louis, MO 63146, USA
Tel.: 314-569-0141, Fax: 314-569-0175
Speakon®is a registered trademark of Neutrik USA