What does a V-shaped sound signature mean?

You hear this term - V-shaped sound signature a lot. But do you know what it meant for you and your headphones?

Audiophiliacs: Why Do They Have So Many Headphones? - Major HiFi

Sound Signatures - The Beginner's Guide - AudioReputation

Sound signature?? (Flat, Warm, V-shaped??)

Reviews by Project A3 Headphone Reviews and Discussion

Graphs 101: How to Read Headphone Measurements – In-Ear Fidelity

AudioQuest NightOwl Carbon Closed-Back Around-the-Ear Headphones

Sound signature?? (Flat, Warm, V-shaped??)

3 Ways to Calculate the Time Signature of a Song - wikiHow

Understanding Time Signatures and Meters: A Musical Guide

The 7 Types of Headphone Sound Signature and How to Pick Your Favorite

Understanding Sound Signatures

Audiophiliacs: Why Do They Have So Many Headphones? - Major HiFi

Most Expensive Headphones. Sennheiser, a leading manufacturer of