Nightjar Acoustics Singularity

Thanks to Audio Geek "Brother_Hood of Audiophiles", Sandeep Agarwal & Nightjar Acoustics i've been to able to audition Singularity IEM: A Harmonious Symphony in Single Dynamic Driver

The Nightjar Acoustics Singularity is a masterful creation that weaves a sonic tapestry of balance and musicality, elevating the listener to a realm of pure auditory bliss.

This single dynamic driver IEM is a testament to the art of sound engineering, where every note is a brushstroke on the canvas of sound.



Bass: The Foundation
The bass is the foundation upon which the Singularity's sound is built. It is rich, deep, and controlled, providing a satisfying low-end presence without overpowering the other frequencies. The sub-bass extends remarkably, offering a rumble that is particularly noticeable in bass-heavy tracks, making it a delight for bassheads who crave depth without sacrificing clarity.

Midrange: The Heart
The midrange is where the Singularity truly shines, with vocals and instruments presented in a clear, natural, and slightly forward manner. The timbre is lush and realistic, allowing listeners to appreciate the subtle nuances in recordings. The upper midrange is carefully tuned to avoid sibilance, making it versatile for various music genres.

Treble: The Sparkle
The treble is smooth, detailed, and extended, adding just enough sparkle to enhance the soundstage without causing fatigue. High-frequency sounds like cymbals and hi-hats are crisp and defined, contributing to a balanced listening experience that is both engaging and relaxing.

Soundstage & Separation
While the soundstage is not the widest, it is intimate and cohesive, with excellent instrument separation. This allows listeners to pinpoint the various elements of the music with ease, creating a sense of being on stage with the performers.

Pairing
Being Warm & Single DD Singularity shines through Nightjar Blue Hour 4w cable & sources with more power delivery & cleaner sound like HUGO 2 & Questyle CMA18P.



Conclusion
The Nightjar Acoustics Singularity is a masterpiece for those seeking a natural, balanced sound with a focus on bass extension and musicality. It is an excellent choice for anyone looking to immerse themselves in music without the need for extreme neutrality or a vast soundstage. With its beautiful tonality and impressive technical performance, it stands as a testament to what a single dynamic driver can achieve.

A TOTL musical experience on the edge of Black (Rabbit) Hole without merging into golden centered SINGULARITY.

My Impressions of singularity

First of all, a huge thanks to the Audio Geek Brother_Hood of Audiophiles and Sandeep Bhai for allowing me to try the Singularity.

Things to know:
I’ve had the Singularity for around 10 days. My source was the Hiby R6 2025 and Apple Music. All impressions are with the stock cable and Divinus Velvet tips.

Let’s dive in!

Build, Comfort, & Looks:
The Singularity is superbly built, with an aluminum shell that feels like it will last a lifetime.

The shell size is small, and the nozzle isn’t too thick, making the Singularity a comfortable IEM to wear for extended listening sessions.

The stock cable looks and feels great in hand, and I don’t think it needs an upgrade cable. The chin slider is the best I’ve used.

As for the looks—two words: Subtle luxury. The black shell with a golden donut on the faceplate, complemented by the matching cable, gives it a very premium feel.




And now, the sound… Oh boy.

Bass:
The bass is the first “wow” aspect. As soon as you start listening, you’ll immediately notice the quality of the bass—it never overpowers the other parts of the music. The quantity is just right for me, and the quality is a chef’s kiss. The depth and impact are amazing.

Midrange & Timbre:
“Wow” number two—the realism of vocals and instruments is addictive. It feels like you’re experiencing music live—something you have to experience for yourself. It’s very hard to stop listening to music once you have the Singularity on. Shankar Mahadevan Sir (an amazing Indian artist) sounds godlike!

Highs:
Two words: Smooooth operator!
It’s detailed, clean, and never gets fatiguing.

Soundstage & Separation:
It has a big soundstage for an IEM, and the instrument separation is fantastic. It’s very easy to pinpoint where the various elements of the music are. Just close your eyes and enter the musical world created by the NightJar Acoustics team!

Conclusion:
There are levels to this.
There’s a reason why an IEM with a single dynamic driver costs as low as $20, and the Singularity costs $1,300 with a similar single dynamic driver configuration—and it’s absolutely worth it.

NightJar Acoustics has redefined what a single dynamic driver can do. An absolute masterclass.

Preface

This review is based on a loaner unit I was sent for testing, but I found it special enough that I plan to purchase a set for myself. All thoughts and opinions are entirely my own.
My rank list:
https://docs.google.com/spreadsheets/d/1n_i6a_GBhlwjjq3N5mxKBWkCufEu8mbfqJrfdv8kkDQ/edit?gid=0#gid=0

Overview

Sound
I will dig deeper into each aspect of the sound a bit later in the review.
Overall the Singularity sounds bassy yet balanced with great timbre. The first thing you notice is the deep impactful bass, there is more of it than what I consider neutral but it never leaves the realm of balanced for me. The slight upper mid forwardness especially helps with keeping an overall balanced sound never letting the bass get too overpowering. Despite the bass boost the mids are ever-so-slightly forward and presented with amazing timbre and naturalness, helping with the natural timbre is the tame treble response, the treble is more “veiled” than other sets in this range such as the Symphonium Crimson which can lead these to sound dark to some people but I do not find it dark.

Unboxing

• Nightar Singularities
• Nightjar Vanguard (2W stock or 4W upgraded / launch edition)
• Metal puck case
• 4.4mm, 3.3mm, and 2,5mm cable termination swaps
• Cleaning cloth
• Warranty card
• Divinus Velvet eartips
• Stickers

The stock cable and tips fit very well for the Singularity and I found no reason to swap or change for either aesthetics or sound. Everything included in the package is extremely high quality and I appreciate the effort put into the quality of everything. The Vanguard cable is extremely soft and flexible, a bit too thin for me but not bad enough to complain about, the accessories on the cable are all metal and feel solid and sturdy with a Y-splitter that I find adorable.

Design / Build
The Singulariy’s are made of anodized aluminum with a 24K gold ring on the faceplate (at least on the launch edition, I’m not sure about newer units.) Not many IEMs above the price of $1k are this small and as someone with smaller ears I appreciate the smaller shells out there, I could see the small shell being an issue for some with large ears though.


Sound
Bass
This is where the Singularity eclipses its competition. The bass is both impactful and deep, smoothly sloping into the sub-bass without a shelf. This gives it a more mid-bassy than sub-bassy character, which I prefer.
The first thing that stood out was its depth, songs with deeper bass, which often get lost even on higher-end IEMs, were rendered unmistakably clear. The bass isn’t overly tight, so it retains impact, yet it’s not loose to the point of sounding ‘puffy’ or ‘boomy.’ It strikes a balance, offering adequate texture and detail while maintaining a natural, weighty presentation without becoming dry or too clinical.
Another thing I love about the bass is that there is enough to satisfy a basshead but not too much for people who prefer balanced-neutral sets (such as myself.) By that I mean it never becomes overpowering or leaves the realm of a balanced set.

Midrange
The midrange is executed exceptionally well, the timbre is outstandingly natural and realistic with vocals, guitars, strings, and all instruments.
The slight upper mid forwardness keeps vocals cutting through the mix alongside the boosted bass region. Female vocals aren’t too bright sounding but aren’t muffled either and the Singularity finds the perfect spot between the two.
The lower midrange is thick, giving a nice satisfying body to vocals and instruments that call for it. Female vocals can sound slightly husky on some tracks but this is not usually the case.

Treble
There isn’t too much to say about the Singularity’s treble but my few notes are that it's more relaxed than most IEMs at this price range. I never hear any sibilance or harshness in any track, even in brighter mixes. The upper treble while relaxed is still airy and keeps the mix sounding open and not cramped, the treble is also well-textured and detailed but isn’t the Singularity’s strongest point. Not bad by any means.

Technicals
The Singularity is not amazing when it comes to technical performance so if you’re looking for a set that will blow your mind with width, staging, imaging, and separation these are probably not the best choice for you. With that said, they are not bad by any means, complex mixes don’t sound crowded and they don’t sound cramped or claustrophobic, just not outstanding.

Sources
My testing was mainly done through my FiiO BTR17 streaming Tidal from my iPhone
I also tested on my Questyle M15i through Tidal as well

Photo Gallery