S W R BASS 350 USER GUIDE SWR © 2001 SWR 8860 E. Chaparral Rd. Suite 100 Scottsdale, AZ 85250-2618 USA PHONE: (480) 596-9690 FAX: (480) 367-5262 EMAIL: custserve@fenderusa.com WEB: swrsound.
IMPORTANT SAFETY INSTRUCTIONS CAUTION: TO REDUCE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER OR BACK. NO USER-SERVICEABLE PARTS INSIDE. PLEASE REFER TO A QUALIFIED SERVICE TECHNICIAN. A. Read Instructions: All safety and operation instructions should be read before the product is operated. B. Retain Instructions: The safety and operating instructions should be retained for future reference. C. Heed Warnings: All of the warnings on this product and in the operating instructions should be adhered to. D.
SWR BASS 350 USER GUIDE INTRODUCTION The SWR Bass 350 Bass Amplifier was designed for the player who prefers a simple and straightforward preamp combined with a power amp capable of delivering enough power and headroom for most live applications. The Bass 350 maintains the same quality components and materials found in all SWR products and is assembled by hand at our factory in California. The two preamp gain stages utilize a specially-selected Groove Tubes 12AX7A.
SWR BASS 350 — SPECIFICATIONS Note: All measurements were taken with a line voltage of 120VAC. All noise specifications are “unweighted.” All voltages and watts are “RMS.” All measurements were taken with tone controls set flat, Aural Enhancer at minimum.
Note: If you want to overdrive the first TUBE stage, use an external preamp between your instrument and the Passive input. To obtain optimum sound when trying this, make sure the preamp clip LED is not activated. If this occurs, turn down your Gain control until the LED does not light. The first preamp tube stage is NOT monitored by the preamp clip circuit for this reason.
ACTIVE TONE CONTROL SECTION BASS CONTROL The Bass Control employs a shelving type circuit and boosts or cuts the bass response +/–15dB, from about 30 Hz to 100 Hz. Starting at mid-center click-position, turning the control counter clockwise cuts the bass response and turning the control clockwise boosts the bass response. MID RANGE SECTION LEVEL CONTROL The Level control cuts or boosts the frequency set by the Frequency control.
The Effects Blend functions only when the Effects Loop is being used. It is activated when a 1/4" phone plug is inserted into the Effects Receive jack (see the “Effects Loop” section for more information). Note: Pulling the Effects Blend control knob outward defeats the internal limiter circuit. To activate the limiter, push the control in. MASTER VOLUME The Master Volume adjusts the level being sent to the power amplifier in your Bass 350—it controls the overall volume of the unit.
REAR PANEL FEATURES BALANCED XLR OUT The Balanced XLR out is a true electronically balanced record out. The signal appearing at the XLR out is governed by the position of the Line/Direct switch. In the LINE position, all front panel controls are functional except the Master Volume, and the signal is essentially the same as that heard through your speaker system. The output level in the Line position is adjusted by the GAIN control on the front panel.
SEND Run a shielded patch cord from the SEND jack to the INPUT of your effects unit. The output impedance of the Effects Send Jack is 100 ohms. This jack can be used as a line level output for use in conjunction with a slave power amp such as SWR’s Power 750. It may also be used as an unbalanced record out. RECEIVE Run a shielded patch cord from the Bass 350 RECEIVE jack to the OUTPUT jack of your effects unit.
Recommended SWR Speaker combinations for use with the Bass 350 include: • (2) Goliath IIIs • (2) Goliath Junior IIIs (8 ohm version) • (2) Son Of Berthas • (1) Goliath Junior III & (1) Son Of Bertha • (1) Goliath Junior III & (1) Big Ben • (1) Goliath III & (1) Goliath Junior III SPEAKER FUSE The speaker fuse is provided to protect your speakers in the unlikely event of a power amp failure or to protect your power amplifier from incorrect speaker impedances or hookups.
SWR BASS 350 — SUGGESTED SETTINGS Aural Enhancer min max Midrange Bass Level Frequency Treble 0 500 0 0 +15 -15 +15 -15 200 800 +15 -15 ROCK Aural Enhancer min max Midrange Bass Level Frequency Treble 0 500 0 0 +15 -15 +15 -15 200 800 +15 -15 REGGAE Aural Enhancer min max Midrange Bass Level Frequency Treble 0 500 0 0 +15 -15 +15 -15 200 800 +15 -15 JAZZ Aural Enhancer min max Midrange Bass Level Frequency Treble 0 500 0 0 +15 -15 +15
BASS 350 LIMITED WARRANTY The BASS 350 from FMIC is warranted to the original consumer purchaser for TWO YEARS from the date of purchase, against defects in materials and workmanship and provided that it is purchased from an Authorized SWR Dealer. This warranty applies only to products purchased in the USA or Canada.
