Are the 2019 Macbook pro 13-inch speakers better than its 15-inch counterpart?

JulesAChE wrote:

Recently one of my friends bought a 2019 13-inch Macbook pro, and I immediately thought of comparing the speakers between hers and my 2019 15-inch Macbook pro, and surprisingly, they sounded pretty much the same and even a little better, thus I want to know for sure. Are the 2019 13-inch Macbook Pro speakers better or equal to its 15-inch counterpart?

Not by design—

there are all kinds of user preferences to adjust, so it would be hard to compare oranges to oranges unless all factors where compared.

In itunes

in Sound preferences

in Audio Midi Setup.app

Adjust the sound quality in iTunes on Mac - Apple Support

I will say the new 16" MBP has made some significant improvement s to the speaker quality:

Higher Fidelity Audio Experience

The 16-inch MacBook Pro introduces a completely redesigned six-speaker, high-fidelity sound system designed to bring musicians, podcasters and video editors the most advanced audio experience ever in a notebook. New Apple-patented force-canceling woofers use dual opposed speaker drivers to reduce unwanted vibrations that distort sound. As a result, music sounds more clear and natural than ever before, and the bass can go half an octave deeper. An upgraded high-performance mic array delivers a 40 percent reduction in hiss and an improved signal-to-noise ratio that rivals that of popular professional-grade digital microphones, delivering super-clean recordings that capture even the quietest details.

Apple introduces 16-inch MacBook Pro, the world's best pro ...