BT220 Bass Amplifier

The Front Panel:

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1.INPUT: Use this 1/4” jack to connect your bass to the amplifier by means of a shielded instrument cable.

2.-15dB/0dB:Use this switch to match the output signal level of your instrument to the amplifier. If your instru- ment has standard pickups, setting the switch to the 0dB position (switch in the out position) should yield the best results. If your bass has active electronics or high output pickups, set the switch to the -15dB position (switch depressed).

3.MUTE: This switch, when depressed, interrupts the signal prior to the power amplifier, allowing you to tune your instrument in silence.

4.GAIN: Use this control to adjust the amount of distortion for the Distortion channel. As you rotate the control clockwise the amount of distortion increases.

NOTE: The BT100 employs an internal noise gate on the Distortion channel to keep residual noise to a minimum. The Clean channel’s Level control (#8) must be turned up above “0” in order for the noise gate to trigger proper- ly. The Gain control (#4) and input signal level also affect the noise gate.

5.SHAPE: Use this control to adjust the tone of the Distortion channel, from a studio “V”-shaped tone to a more “live,” more present sound.

6.LEVEL: Use this control to adjust the output level of the Distortion channel.

7.CHANNEL SWITCH: Use this switch to select either channel. With the switch in the out position, the Clean channel is selected. When the switch is depressed, the Distortion channel is selected. The adjacent LED illumi- nates when the Distortion channel is selected. NOTE: When using a footswitch: when this switch is depressed, the footswitch switches between the Distortion channel and the Clean channel; when this button is in the out posi- tion, the Clean channel is always active, and the footswitch turns the Distortion channel on and off, allowing you a blend of both channels.

8.LEVEL: Use this control to adjust the output level of the Clean channel, and as part of the Octave level control (see #13).

9.LOW: Use this control to adjust the low frequency output of the Clean channel.

10.LOW MID: Use this control to adjust the lower-midrange frequency output of the Clean channel.

11.HIGH MID: Use this control to adjust the upper-midrange frequency output of the Clean channel.

12.HIGH: Use this control to adjust the high frequency output of the Clean channel.

13.OCTAVE: The BT100 features internal circuitry which creates a second signal which is one octave lower than the input signal. Use this control in conjunction with the Clean channel’s Level control (#8) to adjust the level of the octave signal.

14.MASTER: Use this control to adjust the overall output level of the amplifier.

15.LIMIT LED: This LED illuminates when the internal limiting circuit is active. Occasional flashing during play- ing is normal. If the Limit LED remains illuminated, reduce the output level of the amplifier until the LED flashes.

16.CD INPUT: Use these RCA jacks to connect the line level (or headphones) output of a CD player, tape deck or rhythm machine to the amplifier. The signal level from these jacks is adjusted by the Master control (#14). If the signal from the source connected to these jacks is too strong, use the output level control on the source to adjust the signal to obtain the proper level for a good mix.\

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Crate Amplifiers BT220 manual Front Panel
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BT220 specifications

The Crate Amplifiers BT220 is a versatile and powerful guitar amplifier that caters to musicians looking for quality sound and a range of features in a compact design. Renowned for its reliability and performance, the BT220 is designed to meet the demands of both practice sessions and live performances.

One of the standout features of the BT220 is its dual-channel design, allowing musicians to switch between clean and overdriven tones seamlessly. This flexibility enables users to explore a wide sonic palette, from crisp, clean sounds ideal for jazz or pop to heavy, saturated distortion perfect for rock or metal. The amp includes a built-in digital effects processor offering various effects such as reverb, delay, and chorus, expanding the creative possibilities for players.

The BT220 is equipped with a powerful 220-watt power amplifier, ensuring that it delivers robust sound even in large settings. Its innovative speaker design, which includes high-quality 12-inch drivers, contributes to an impressive low-end response and clarity across the frequency spectrum. This attention to speaker quality enhances the overall sound quality, providing an immersive listening experience for both performers and their audiences.

Furthermore, the amp features versatility with its input options, accommodating various instruments and audio devices. The auxiliary input allows musicians to connect external devices, making it easy to play along with backing tracks or practice with favorite songs. A headphone output also is included, enabling quiet practice sessions without sacrificing sound quality.

The construction of the Crate BT220 emphasizes durability and portability. The amp is housed in a rugged enclosure designed to withstand the rigors of life on the road, while lightweight materials ensure it is easy to transport. This combination makes it an ideal choice for gigging musicians who need reliable gear without the burden of excess weight.

In summary, the Crate Amplifiers BT220 stands out in the crowded amplifier market with its dual-channel capabilities, integrated effects, powerful output, and rugged construction. These features make it a perfect choice for guitarists of all skill levels looking for quality sound and dependable performance. Whether practicing at home, jamming with friends, or performing live, the BT220 provides the tools needed for musical expression and creativity.
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