Boss DR-770 Owner’s Manual

Pages 124

Year 1999

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Boss DR-770 Specification

The Boss DR-770 is a sophisticated drum machine designed for musicians and producers who require versatile rhythm programming capabilities. It features an extensive library of 400 high-quality drum and percussion sounds, offering a wide range of acoustic and electronic tones suitable for various musical genres. The device includes 255 preset rhythm patterns, alongside 100 user-programmable patterns, enabling extensive customization and flexibility in rhythm creation. The DR-770 boasts a 16-voice polyphony, ensuring complex layering of sounds without note dropouts.

Equipped with a large LCD screen, the DR-770 facilitates easy navigation and editing of sounds and patterns. Its intuitive interface includes a grid-style pattern sequencer, allowing users to quickly program and modify rhythms. The device supports MIDI connectivity, enabling seamless integration with other MIDI-compatible equipment for expanded musical setups. Additionally, the DR-770 offers an onboard effects processor, providing reverb, compression, and EQ to enhance the sonic quality of the drum sounds.

The unit features a stereo output, headphone jack, and footswitch input, granting users flexible audio output options and performance controls. Power is supplied either through an AC adapter or six AA batteries, making it suitable for both studio and portable use. Compact and lightweight, the Boss DR-770 is designed for durability and ease of transport, making it an ideal choice for musicians on the go. With its robust feature set and high-quality sound engine, the DR-770 remains a popular choice for those seeking a reliable and comprehensive drum machine solution.

Boss DR-770 F.A.Q.

How do I reset the Boss DR-770 to its factory settings?

To reset the Boss DR-770 to its factory settings, press and hold the ERASE button while turning on the power. Continue holding the ERASE button until the display shows "FAC ALL." Release the button, and the reset process will begin.

How can I save a custom drum pattern on the DR-770?

To save a custom drum pattern, press the WRITE button after creating your pattern. Use the dial to select a user pattern location, then press WRITE again to confirm.

What should I do if the DR-770 is not powering on?

If the DR-770 is not powering on, ensure that the power adapter is correctly connected and that the outlet is functioning. If using batteries, check that they are installed correctly and have sufficient charge.

How do I connect the DR-770 to an external MIDI device?

To connect the DR-770 to an external MIDI device, use a MIDI cable to connect the DR-770's MIDI OUT port to the MIDI IN port of the external device. Ensure both devices are set to the same MIDI channel.

Can I use the DR-770 with a footswitch, and if so, how?

Yes, you can use the DR-770 with a footswitch. Connect a footswitch to the FOOT SW jack and configure the function in the UTILITY menu to control various operations such as start/stop, fill, or pattern change.

How do I adjust the tempo of a pattern on the DR-770?

To adjust the tempo, press the TEMPO button, then use the VALUE dial to set the desired tempo. You can also tap the TAP TEMPO button in rhythm to set the tempo manually.

What is the procedure to update the firmware on a DR-770?

The DR-770 does not support firmware updates via external means, as it was not designed with user-upgradable firmware. Ensure your unit is functioning correctly and consult Boss support for any firmware-related issues.

How do I assign different drum sounds to pads on the DR-770?

To assign different drum sounds to pads, enter the PATCH mode, select the drum sound you want to assign using the sound dial, and then press the pad you want to assign the sound to. Repeat for other pads as needed.

What should I do if the sound output is distorted or noisy?

If the sound output is distorted or noisy, check the cables and connections for any damage or loose connections. Ensure the volume levels are not set too high, as this can cause distortion. Consider using different output devices to rule out external equipment issues.

How do I create a song using multiple patterns on the DR-770?

To create a song using multiple patterns, enter SONG MODE, press EDIT, and then use the VALUE dial to select patterns in the desired order. Press WRITE to save the song arrangement.