Multi-Band Parametric Equalizer: The Evolution of DAC/AMPs in 2026

In recent times, we have seen a massive increase in demand in the portable audio industry, specifically talking about IEMs and portable USB DAC/AMPs. If you have recently bought a DAC/AMP(that tiny dongle that connects your IEMs to your phone or laptop) from brands like Tanchjim, Moondrop, or FiiO, you’ve probably noticed that the market is evolving towards extensive DSP(Digital Signal Processing) capabilities. A few years back, or we can say a few months ago, the main focus of many brands was on incorporating advanced chipsets, better amplification, and multiple connectivity options in these tiny dongles. But now, the market is evolving, and the new generation of audiophiles wants more than just numbers on a spec sheet, they want the control in their own hands. And this particular requirement has given a massive increase in investment in DSP application development featuring advanced PEQ(Parametric Equalizer) functionality at the centre point. To an average person, PEQ might look very confusing with multiple sliders, frequency options, etc. But in reality, it is the new generation tool that can evolve the way you listen to your favorite music. It is the reason that can take your $50 IEM performance to the next level and help you unlock its true potential.

In today’s guide, we are going to skip through the science lecture on Equalizing and talk exactly how to use this magic tool of PEQ to evolve your personal music listening experience. So, let’s grab a cup of coffee, clean our reading glasses, and begin with today’s extensive topic of learning.

Why is Everyone Talking about PEQ now?

Back in the day, if you did not like an IEM or Headphone, the only option you had was to sell it off, take a huge loss on your finances, and you were kind of stuck with it. You either had to buy a new pair entirely or use a basic EQ functionality. We all know how subjective our hobby is, how sensitive we audiophiles are for particular frequencies. In order to solve this issue, PEQ is a great help, different from a regular EQ that only gives us access to broader bass and treble frequencies or fixed frequency point; PEQ allows us to modify which particular frequency point we want to adjust. This will help the audiophiles get the best out of their IEMs and Headphones by customizing the output to their liking. Obviously, this would greatly depend on how good an IEM driver setup is in terms of taking DSP tuning, but overall, it helps the user tune the output to their liking. Since most new brands have developed their own dedicated applications with dedicated PEQ functionality, and these new portable DAC/AMPs bring that functionality, it’s the latest talk of the town!! On top of all this, Tanchjim, Moondrop, etc., with their application offer an expansive community feature as well where audiophiles can share their tuning presets with others. These brands also upload different HRTF, Harman curve frequency responses as well in their applications, so users get to try them as well if they don’t want to play around personally with the PEQ.

Understand it like this: The PEQ is the remote control of your new DAC/AMP, it gives you complete professional-level control over your music, right from your smartphone screen. Now, let’s dive deeper and understand the basics of PEQ in simple language.

The Three Simple Things to Learn(The “Where, “How Much” and “How Wide)

When you open the PEQ page on your DAC’s application and look at the settings available, you’ll see a bunch of things. The primary requirement is to learn the three basic functions to understand the PEQ deeply.

1. Frequency(The “Where”)

Here you can enter different values and change settings at those given frequency points. Most DAC/AMPs in the market today has 12-band PEQ functionality, which offers 12 different customizable frequency points to adjust with a wide range of 20Hz to 20,000Hz. For simple understanding, Rumble, Punch, and Thump come in the left side of the frequency band, usually under 200-250Hz, piano, acoustic guitar, voice come in the mid frequencies from 250Hz to 5-6kHz, then we have high-pitched violin, flute, cymbals on the right side of the frequency range above the 5-6kHz and up to 20kHz. Usually, small boxes are available under the sliders, where users can put in the frequency value they want to adjust. You want to increase the sub-bass, adjust the 20-60Hz frequencies, and you want to lower the mid-bass, adjust the 60-200Hz range. Play around with different frequencies, and create the tuning of your own liking.

2. Gain(The “How Much”)

This is simply the volume knob for your target frequency. This is usually in the form of a slider and offers ±10dB in most cases, allowing the users to add the gain or cut the gain at their preferred fre2quency points. If you like more warmth, more bass, then you can boost the frequencies under 250Hz, and if you are hearing a lot of sibilance or sharpness in voice, you can cut the gain at around the 2-4 kHz region. Adding too much bass or too much treble can worsen the experience, so add or cut the gain with full care and with slow adjustments.

3. The Q-Factor(The “How Wide”)

This is one of the key things that one needs to learn otherwise they might mess up the PEQ tuning adjustment. It is an important factor with PEQ as the Q-Factor adjusts how smooth the gain is going to be. If you do a very narrow gain, that would make the sound peaky at that given point. This Q-factor is usually between 0.5~5 range. The lower the Q-factor value, the wider the gain effect would be and the higher the Q-Factor value, higher the focused effect of the gain would be. Let us simplify it further for better understanding. The lower the number of Q-Factor, the wider would be the change in the frequency. If you change at 50Hz it would affect the surrounding frequencies as well and give a soft, smooth gain affect in the output. The higher the Q-Factor, the more precise the gain effect. If you give high Q-Factor value, the gain change would be like a peak and precisely affect the frequency that you targeted, a precision strike, you can say.

Some other things to keep in mind!!

Apart from the above three, the only important thing would be the filter that you can apply on the frequencies. In some applications, PEQ will offer you three filters: Peak, Low-Shelf, and High-Shelf. The peak filter affects the frequency point directly with precision; the Low-Shelf also affects the frequencies leading to that particular frequency point you selected, and the High-Shelf filter will affect the frequencies going ahead of the selected frequency point as well. Now, for an easier understanding, if we adjust 50Hz point frequency with a Low-Shelf filter, it will affect the 20-50Hz range entirely. This helps in bringing complete rise to the bass shelf hence it is used in lower-end frequencies majorly. The high-shelf, similarly, if you adjust at 8kHz with a high-shelf, it will affect the frequencies ahead of it as well giving a complete rise to the treble region, this is why it is referred to as a high-shelf filter.

Why the “App” Method is Better than Regular EQ?

Now you might ask, “Can’t I just use an EQ app on my phone and get the same experience” as there are some applications in the market that offer PEQ support like PowerAmp, Wavelet, etc. But the biggest difference here is that, with your DAC application like Moondrop, FiiO, or Tanchjim, you are basically uploading your tuning profile to your DAC. Once this is done, you can use the DAC on any other device, even without the application and enjoy the same signature that you uploaded in the first place. So it is like your tuning stays with the device.

Community Sharing: The “Cheat Code”!!

One of the coolest feature that you can take benefit of would be the Community thing that these Tanchjim, Moondrop, etc. applications offer. You don’t have to be an expert in tuning to get that expert sound. Most of these applications allow you to download “Tuning settings” developed by other users or by their own engineering department that is available in the community. Don’t forget to experience different tuning with your DAC and IEMs and find your favorite one.

Now, let us have a look at some of the recently launched DAC/AMPs that support this application and PEQ thing.

Tanchjim Space Pro:-

The Tanchjim Space Pro is a powerhouse portable DAC/AMP that distinguishes itself through deep software integration and a robust hardware architecture. Central to its appeal is the comprehensive Tanchjim application, which transforms the device into a highly customizable audio workstation. It features a professional-grade 10-band native PEQ (Parametric Equalizer) that supports community preset sharing, allowing you to fine-tune your sonic profile or adopt curated signatures from other enthusiasts. Gamers are particularly well-served by a dedicated Game Audio Optimization System, enabling precise adjustment of critical in-game elements like footsteps and gunshots, alongside virtual 5.1/7.1 surround sound processing for enhanced spatial awareness. Under the hood, the Space Pro pairs dual CS43198 DACs with dual ES8262 amplification chips to deliver a massive 618mW output. This hardware versatility is complemented by switchable Class AB/H amplification modes and dual 3.5mm/4.4mm outputs that support simultaneous microphone input. With its high-resolution decoding capabilities, powerful amplification, and versatile 10-band PEQ, users can experience extensive customizability with the Tanchjim Space Pro!!

Moondrop Dawn Pro 2:-

The MOONDROP Dawn Pro 2 distinguishes itself with a heavy emphasis on its 2nd-generation online interactive DSP and versatile app compatibility. This system features a professional-grade 8-band parametric EQ (PEQ) that provides granular control over filter types, frequency points, gain, and Q values, moving far beyond standard graphic equalizers. Users can access these settings through the MOONDROP Link app on Android or a dedicated web-based interface for Chromium browsers on PC and Mac, ensuring a consistent tuning experience across platforms. A key highlight is the community-driven tuning library, which allows you to upload personal configurations or download presets tailored to specific IEMs and target response curves. While it houses dual CS43198 flagship DACs and a robust 4Vrms balanced output, the software integration is the primary draw for those seeking precise timbre correction. The settings are applied directly to the hardware, though users should note that the DSP mode is toggled via a long-press of the volume buttons, indicated by an orange light. Wrapped in a CNC-machined aluminium housing with integrated cooling vents, the Dawn Pro 2 offers a sophisticated blend of hardware power and deep, community-supported software customization.

Final Words: You Engineer the Sound You Like!!

Everyone like’s different things, and PEQ support is like handing you the keys to your IEM or Headphone factory. You no longer have to settle for the stock sound, you can always pursue your favorite sound, shape it, refine it, and perfect it for yourself. We hope this clarifies all the doubts you might have for PEQ or application support for these new DAC/AMPs. If you have any questions or queries, feel free to shoot us an email at support@hifigo.com.

Thanks for reading!!