How do I Connect a Yamaha P-85 to an Amp?

Written By
Robert Russell
Robert Russell
Published: Aug 5, 2010
Updated: Feb 23, 2021
2 minute read

The Yahama P-85 is a digital keyboard that is great for recording and practicing at home. It may be connected directly to computer for recording and it has small built-in speakers. The P-85 also has a headphone jack that allows you to practice without bothering your neighbors or family members. However, the small speakers are inadequate live performances. A keyboard amplifier is necessary if you are planning on using the P-85 for live performances.

Things You'll Need:

Things You Will Need

  • Keyboard Amplifier
  • Instrument Cable
  • 1/8-Inch Adapter
  • Find the right amplifier for your musical needs. Keyboard amps come in different shape and sizes. If you are playing solo gigs in a small venue, then a small amplifier will work fine. However, if you are playing in a rock band, then your amplifier needs will be quite different. Try out several keyboard amps and read keyboard amp reviews.

    Connect a regular instrument cable to a 1/8-inch adapter. Instrument cables are designed for 1/4-inch input jacks. To connect the P-85 to an amplifier, plug the instrument cable to the headphone jack on the piano. The headphone jack is 1/8 inch in diameter. This makes an adapter necessary. Attach the adapter to one end of the instrument cable and plug it into the headphone jack in the front of the P-85. Plug the other end of the instrument cable into the amplifier.

    Set the volume low on the P-85 and on the amplifier. Adjust the volume of the P-85 with the master volume slider. Adjust the volume on the amplifier with the volume control knob. Turn the keyboard and the amplifier on. Slowly raise the volume on each to the appropriate level.

    Experiment with the amplifier to get the right sound. The amp does more than make your keyboard louder, it also shapes and crafts the sound and tone of your keyboard. Experiment with the tone controls. Set the treble and bass at 12 o'clock and go from there.

    Robert Russell

    Robert Russell began writing online professionally in 2010. He holds a Ph.D. in philosophy and is currently working on a book project exploring the relationship between art, entertainment and culture. He is the guitar player for the…

    Sponsored
    Our Pastimes Logo

    A destination for the avid collector and weekend hobbyist alike, Our Pastimes features articles and tips about your favorite cards and games, hobbies and more.

    Property of TechnologyAdvice. © 2026 TechnologyAdvice. All Rights Reserved

    Advertiser Disclosure: Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. TechnologyAdvice does not include all companies or all types of products available in the marketplace.