SWR Black Beauty Bass Combo Amplifier (350 Watts, 1 x 15 in.)

SWR's Black Beauty combo amp features a custom SWR 15-inch bass driver and high-frequency horn tweeter in a 4-ohm speaker configuration -- driven by 350 watts RMS (450 watts using a 4-ohm extension speaker cabinet). In addition to dramatic, new chassis graphics (featuring the SWR badge in classic chrome), the Black Beauty has inherited a very popular effect from the SWR Mo' Bass soundstation -- the SWR SubWave -- producing clean, pure and accurate octave signals. A Subwave Footswitch with a hardwired 1/4" cable (for connection purposes) ships with the Black Beauty as an added bonus.

Technical Info

Front Panel Specifications
Dual independent input jacks compatible for both active and passive instruments

Gain control with LED peak clipping indicator

SWR's exclusive Aural Enhancer circuitry

Subwave (with Level control)

Subwave Illuminated on/off switch

Limiter

Limiter Defeat Switch

Active bass and treble controls

Variable mid-range EQ

Effects Blend Control

Master Volume Control

Power On/Off Switch

Steel chassis

Rear Panel Features
Side Chain Effects Loop

Balanced XLR Output

XLR Mode Switch (Direct, Line, or Direct + Sub)

Tuner Send

Subwave Footswitch Jack

Extension Speaker Output

Three-way tweeter control switch:
(full-range, -6dB, tweeter off).

Extruded Heat Sink

Other Specifications
(1) 12AX7 Preamp Tube

Frequency Responce:
(Power Amplifier): -3dB @ 20Hz and 40KHz
(Speaker Complement): -3db @ 45 Hz and 13.5 kHz

Dimensions (W x H x D): 23 in. x 25-7/8 in. x 18-3/8 in.

Weight: 95 lbs.

Power Output:
350 Watts @ 4 Ohms
400 Watts @ 2.67 Ohms (with 8 ohm extension speaker)
450 Watts @ 2 Ohms (with 4 ohm extension speaker)
Note: Internal speaker impedance is 4 ohms.

Signal-to-noise Ratio: -72 dB (<10 millivolts typical)

Edquivalent Input Noise: 9 microvolts

Input Impedance:
Passive/Active Input: 800K Ohms
Active Input: 60K Ohms
Effects Return: 27K Ohms

Output Impedance:
Effects Send: 100 Ohms
Tuner Send: 100 Ohms
XLR Balanced Out: 750 Ohms

Speaker Complement:
(1) 15 in. custom-designed SWR driver
(1) Foster Horn

Power Handling: (speaker section) 350 Watts RMS continuous program

Internal Impedance: 4 ohms

Tuning: Front slot port. Specially designed to eliminate unwanted noise.

Crossover: Third order, 6db rolloff, 18db butterworth high pass 4KHz turnover. The crossover is located inside the Black Beauty's speaker enclosure.

SPL: 100 dB @ 1W1M

Cabinet Construction: 5/8 in. 7 ply, Maple or Birch plywood construction, waterproof glue. All joints Dado and Rabbet, glued and nailed. Extremely heavy bracing.

Finish:
Black carpeting with stack lock corners.
Black Stamped Steel Vibration-Free Grill.

Chassis Material: Steel