B2/B2R Bass Amplifier

The Front Panel Controls and Their Use

 

 

 

 

 

 

 

40Hz 80Hz 150Hz 300Hz 600Hz 900Hz 2kHz 5kHz

8kHz

INPUT

PAD

GAIN

BASS

ULTRA MID

TREBLE

MASTER LIMITER

+12dB

POWER

 

 

 

 

 

 

 

0

 

-15dB PEAK

-12dB

LIMIT

EQ

ON

ON

1

2

3

4

5

6

7

8

9

10

11

12

13

1.0dB (INPUT): The signal output from an instrument (active or passive) or a line level signal may be connected here by means of a shielded instrument cable.

2.15dB PAD: This switch, when depressed, attenuates the input signal by 15dB. Attenuation allows the Gain control (#4) to be used over a larger portion of its range. If clipping is indicated with the Gain control near minimum, attenuation is need- ed.

3.PEAK LED: This LED flashes when the signal level into the preamp approaches clipping. Adjust the Gain control (#4) until a strong signal from your instrument causes this LED to flicker.

NOTE: If the LED flashes frequently with the gain at a low setting, use the 15dB Pad (#2) to attenuate the input signal and read- just the Gain.

4.GAIN: This serves as the input level control for the amplifier. For the best signal- to-noise ratio set this control so the Peak LED (#3) flashes when you strike a string fairly hard.

5.BASS: This is the primary low frequency control which allows for 8dB of cut or boost at 50Hz.

6.ULTRA-MID:This is the primary midrange control. Rotate the control to the left of center for a “contoured” sound (more distant, less midrange output) or to the right of center for a pronounced (more up- front) tone.

7.TREBLE: This is the primary high fre- quency control which allows for 12dB of boost or 19dB of cut at 5kHz.

8.MASTER: Set the overall output level of the amplifier with this control. The Effects Loop and Balanced Out (#19-21,24) are not affected by the Master control.

9.LIMITER: The B2/B2R uses an internal Optocoupler Limiter to assist in keeping the power amplifier’s output “clean” at extreme volume levels. (All amplifiers begin to clip their output signals as they approach maxi- mum output levels, resulting in distortion which may damage your speakers.) To engage the Limiter, depress the Limit switch. Whenever the amplifier is at full power, the adjacent LED will flash. This is an indication that the limiter is keeping peak signals from clipping the output.

NOTE: Playing at full power with the Limiter off will give you increased output power, but the sound may be distorted. Use discretion when playing without the Limiter.

10.EQ ON SWITCH: Depress this switch to activate the Graphic EQ. The adjacent LED illuminates when the EQ is on.

11.GRAPHIC EQ: These sliders control the output of the frequencies indicated above each control. The center position of each control is flat (no boost or cut).

12.POWER ON LED: This LED indicator illuminates when the POWER switch (#13) is ON.

13.POWER SWITCH: This heavy-duty rocker switch applies the power to the amplifier. The amp is ON when the top of the switch is depressed, OFF when the bottom of the switch is depressed.

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Ampeg B2R manual Front Panel Controls and Their Use

B2R, B2 specifications

The Ampeg B2 and B2R are renowned bass amplifiers that have carved a niche for themselves in the music industry, particularly among bass players seeking powerful, versatile, and high-quality sound. These models exemplify Ampeg's long-standing heritage in producing exceptional bass amplification products.

At the heart of the B2 and B2R amplifiers is a solid-state design that ensures reliability and exceptional performance. The B2 model features 100 watts of power, making it suitable for practice sessions and smaller gigs. Meanwhile, the B2R pushes the envelope with 200 watts, allowing it to perform effectively in larger venues without compromising sound quality or clarity.

One of the standout features of both models is the built-in preamp, which includes Ampeg's signature tone stack. This circuitry enables players to shape their sound with precision, offering controls for treble, midrange, and bass frequencies. Whether you desire a punchy tone or something more subdued, the B2 and B2R offer the flexibility to achieve your preferred sound.

Both amplifiers also feature an equalization section that allows for deep tonal control, ensuring that every note played translates into a captivating sound. Additionally, they come equipped with a parametric midrange control, giving players the ability to specifically target frequencies for further refinement.

The B2 and B2R also boast an innovative direct output feature, making it easy to connect to recording devices or mixing consoles. This means musicians can achieve that rich, Ampeg tone even during studio sessions without needing to mic an amp. The inclusion of a headphone jack also enhances their usability, allowing for silent practice.

Durability is key in live performance settings, and Ampeg has built the B2 and B2R to withstand the rigors of touring and gigging. The rugged construction and high-quality components ensure that these amplifiers deliver reliable performance time after time.

In conclusion, the Ampeg B2 and B2R amplify the essence of what makes Ampeg a respected name among bass players. The combination of powerful output, versatile tonal shaping options, and robust design creates a compelling choice for any bassist looking to enhance their sound and performance. Whether on stage or in the studio, these amplifiers continue to be favorites among musicians striving for excellence in their craft.