10 Best Stereo Equalizers 2026 in the United States

The dbx 1231 Dual 31-band Graphic Equalizer is a versatile tool ideal for those needing fine-tuned control over their audio. With 31 frequency bands per channel, it provides precise adjustment across a wide range. This significant range of adjustment is a notable strength, allowing for detailed sound shaping.

The switchable boost/cut range further enhances its flexibility, letting users adjust the level of frequencies more effectively based on their needs. The equalizer's 2-channel design is beneficial for stereo setups, ensuring consistent sound quality across both channels. However, this product might be on the heavier side, weighing in at 8.8 pounds, which could be a consideration for portable or space-limited setups.

Despite being an older model (available since 2012), it maintains a solid reputation. For those seeking a reliable graphic equalizer with extensive adjustment capabilities, the dbx 1231 remains a strong candidate.

The dbx 231s Dual Channel 31-Band Equalizer is a solid choice for musicians, sound engineers, and audio enthusiasts looking to enhance their sound control in live or studio settings. With its dual 31-band constant Q frequency bands, it provides detailed adjustments for a wide range of sound frequencies, allowing users to fine-tune their audio output effectively. The switchable boost/cut ranges of 6 or 12 dB give flexibility for making significant changes or subtle tweaks in sound, which is a great feature for those seeking versatility in their setups.

One of the standout features is the front panel bypass switch, which allows for quick comparisons between the processed and unprocessed signals. This is particularly useful during live performances where setting adjustments need to be made rapidly. The 12 dB input gain range provides ample room for various input levels, making it compatible with different audio sources.

While the 4-segment LED ladders for monitoring output levels are helpful, some users might find that they need more detailed visual feedback for fine-tuning. The weight of 7.9 pounds and dimensions can also make it less portable compared to smaller models, which might be a consideration for users who frequently move their equipment. The input and output connections via ¼” TRS and XLR are standard in the industry, ensuring good compatibility with most audio gear. Beginners might need to familiarize themselves with these connections if they are new to audio mixing.

The dbx 231s serves well for those who want a reliable and effective equalizer with a range of features. It may be best suited for those with some experience in audio equipment, as the range of options could be overwhelming for complete novices.

The dbx 215s is a dual-channel stereo equalizer with 15 frequency bands per channel, offering detailed sound shaping through 1/3-octave constant Q bands. It lets you boost or cut frequencies by either 6 or 12 dB, providing flexibility depending on the audio adjustment needs. This makes it a strong choice for precise sound control, suitable for live music, studio, or DJ setups.

It includes both ¼” TRS and XLR inputs and outputs, ensuring compatibility with a wide range of professional audio gear for added convenience and versatility. The front panel bypass switch allows quick comparison of the equalized sound to the original signal, which is helpful when fine-tuning settings. Additionally, the 4-segment LED meters help monitor output levels to prevent distortion.

The unit is reasonably compact and fairly lightweight, making it ideal for both fixed installations and portable use. While all adjustments are manual, the dbx 215s is a reliable, well-built stereo equalizer that suits musicians, sound engineers, or hobbyists who want precise, hands-on control over their audio frequencies with standard professional connections and practical features like a bypass switch and LED level monitoring.