SWR Basic Black Tube Preamp 160 Watt 15" Bass Combo Amplifier USA Pink Used

SWR Basic Black Tube Preamp 160 Watt 15" Bass Combo Amplifier USA Pink Used

Used with wear associated with use. Minor cosmetic scratches/scuffs from handling and play. Any noteworthy blemishes or issues will be described and pictured. Works as it should.

Recovered in Pink Tolex.

Has scratches on the face & back panel.

The Basic Black Integrated Bass System has been designed as a no-frills amplifier for the player requiring a pure sound and a minimum of controls.

The precision electronic section is entirely hand-built, employing a variety of technologies selected for their sound quality and practical usefulness in a road able and studio-ready amplifier, including vacuum tubes in the initial gain stages of the preamplifier section and discrete solid-state design in the power amplifier. Regardless of its lower price, the Basic Black offers no compromises of the essential SWR design and construction philosophy. Corners are not cut from a more elaborate model: rather, each product's design parameters are conceived from the ground up and the best available components selected for each application.

The Basic Black's tone-shaping section, including the Aural Enhancer (found in all SWR Preamps and Integrated Amplifiers) and the Tone Controls, will not impose a character on your sound. They will instead make the interface between your instrument and the speaker system, the two biggest factors in your final tone, a simple matter and a minimal effort. The center frequencies of the Tone Controls were chosen for their musical effect on most basses. The Basic Black speaker system features a single die-cast frame (as opposed to the more frequently found stamped frame) 15 inch bass driver from Professional Audio Systems coupled with a piezo tweeter for frequencies above 5KHz. The cabinet is constructed from 3/4" Douglas fir and 7-ply birch.

EVERY BASIC BLACK FROM SWR IS ENTIRELY ASSEMBLED BY HAND IN CALIFORNIA. AT LEAST 75% OF COST IN RAW PARTS ARE MADE IN CALIFORNIA. TRULY "HAND MADE IN THE U.S.A."

SPECIFICATIONS - ELECTRONIC
Note: All measurements were taken with a line voltage of 120V AC. Maximum power at 1KHz under clipping:
120 Watts RMS @ 8 ohms
160 Watts RMS @ 4 ohms
*current limited at 2 ohms for thermal stability.
*160 Watts RMS @ 2 ohms
Power Amp Distortion (1KHz)
0.05% THD at rated output, 8 ohms
Intermodulation Distortion @ 8 ohms,
100 Watts RMS, 60/7KHZ, 4:1, = 0.11%
Frequency Response (power amp): -3db at 10 Hz and 30KHz
System Distortion (Gain and Master Volume full, enhancer and tone controls set flat,
1KHz) 0.175%THD
Sensitivity (for full output @ 8 ohms, 1 KHz)
Passive Input Jack = 10 millivolts
Active Input Jack = 50 millivolts
Input Impedance
Passive Input Jack = 800K ohms
Active Input Jack = 60K ohms
Effects Return Jack = 27K ohms
Output Impedance
Effects Send Jack = 100 ohms
Tuner Out Jack = 100 ohms
Signal to Noise Ratio, unweighted
-70db (10 millivolts typical, mostly hum)
Equivalent Input Noise
3.2 micro-volts
CABINET/SPEAKERS
Size: 22.75" wide X 20.5" high X 16.5" deep
Weight: 50 lbs.
Impedance: 8 ohms
15" Woofer
Tweeter Inductive type piezo crossed over @ 5KHz

Cabinet Construction
Interlocking dado, glued and nailed using 3/4" Douglas fir

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