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HEM Dynamic
High resolution in-ear headphones

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HEM DynamicHigh resolution in-ear headphones

High resolution in-ear headphones

The High Resolution certified HEM Dynamic sets a new standard for accuracy, speed and comfort. Designed for music lovers these innovative in-ear headphones offer incredible audio reproduction. Using a balanced dynamic micro driver the HEM Dynamic in ear monitors reveal a wider frequency range for the ultimate listening experience.


High Resolution certified

Studio-quality audio

Impressive frequency range for rich bass and clear highs

20Hz to 40,000 Hz

Enhanced isolation and sound quality

Comply™ soft foam ear

Built-in microphone and inline remote

skip, pause and play songs as well as for calls, Alexa, Cortana, Siri and Google Assistant

Hi-Res performance

The HEM Dynamic in-ear headphones let you hear every track in exceptional clarity – for rich full-bodied sound. The combination of cutting-edge design and Hi-Res certified dynamic micro driver technology results in balanced sound.

Small but powerful

The HEM Dynamic in-ear headphones feature a high quality dynamic micro driver that produces deep and explosive bass with balanced crystal clear highs. Each driver and earphone is carefully measured and matched between each earbud and can produce high frequencies up to 40,000Hz, twice as high as traditional earphones.


Constructed with acoustically calculated, vibration-free Lexan™ earpieces the HEM (Hi-Res Ear Monitor) series allow for prolonged listening without fatigue at any volume level. The in-ear monitors are lightweight making them ideal for use at home, in a recording studio, on stage or on the go.

Superior comfort

For maximum comfort and performance the HEM Dynamic comes with two types of ear tips in a range of sizes for a snug, slip-free fit. These include Comply™ soft memory foam ear tips which shape themselves to fit perfectly in the ear canal, offering superior isolation from noise and creating incredible bass response.

Comparison chart

Model HEM8 HEM6 HEM4 HEM2 HEM Dynamic
Colour available Black Black Blue Red Crystal white / Charcoal black
Number of drivers (per earbud) 4 3 2 1 1
Frequency range 10 - 40,000Hz 18 - 40,000Hz 18 - 40,000Hz 20 - 40,000Hz 20 - 40,000Hz
Applications Professional monitoring tool with the most accurate bass. Perfectly balanced for professional use on stage as well as music on the go. Reflects sound better than most in its class. Designed for professionals and audio enthusiasts. A single full range driver. Ideal for home musicians and audio enthusiasts. A single dynamic 6mm driver. Ideal for music on the go.

Hi-Res certificate

The Optoma NuForce HEM range has been able to meet the exact standards which are awarded to a very select group of models. The Hi-Res certification program is a recent effort that combines both the Consumer Electronics Association (CEA)® and the Japan Audio Society (JAS). The partnership was established in 2014 to help promote and support the marketplace growth of High-Resolution Audio (Hi-Res Audio or HRA) devices and content. With the growth in popularity of high resolution audio, the NuForce range is able to meet and exceed the very demanding technical factors that are involved in the replay of DSD content. Combined with the Hi-Res certified uDAC5 the HEM series of in-ear headphones offer a complete high resolution audio solution for audio enthusiasts, budding home musicians, DJs and gamers.

HEM Dynamic


Expert reviews

Professional Audio Magazine
Professional Audio Magazine
October 2017

"Based on sound quality, these ear phones define new standards in the price range! The Optoma HEM Dynamic offers a complete package with very good sound, lavish equipment and comfortable feel".

October 2017

“Firsr class In-Ear phones! The product and packaging is of a high quality. The sound of the Nuforce HEM Dynamic is a highlight. A powerful but not exaggerated bass. For trance and pop music the drivers are more suitable than for fans of classical music. Nevertheless every cent is well spent”
October 2017

“NuForce is expanding its HEM series with the HEM Dynamic and for the first time introduces a dynamic driver"

"It offers a much stronger bass than the rest of the HEM series".

"It has a stronger bass, a warm and less offensive sound and in particular, the balanced upper midrange is a welcome improvement".
October 2017

“In this price segment, the Sound of HEM Dynamic is remarkably brilliant and offers a very good bass playback. Most of the in ear products in this price range are “top-heavy” where they tend to have a strong focus on highs and middle sound. The HEM Dynamic however, is well balanced with minimal slope to low frequencies, no distortion and a high volume solidity.”
August 2017

“If I compare the HEM Dynamic with the Apple Airpods that are almost twice as expensive, they outdo them, for example the bass a of the HEM Dynamic is more pleasant and more saturated…”

“The Sound of HEM Dynamic is convincing and the wearing comfort is wonderful as usual with Optoma NuForce.”

“So if you're looking for cable-bound headphones with a classic 3.5mm jack plug, the HEM Dynamic offers a solid and well-sounding pair of headphones.”
July 2017

“So, how do they sound? Well, bloody amazing.”

“What do I think about the HEM Dynamics? Well if you ask, I don’t think you read the review properly. These IEMs are beautiful, and I wish I were able to keep them, because I found time to listen to music again, because it was truly enjoyable, and it was fun to hear songs I love for the first time again.”


Weight (kg)
0.016 (16g)
Driver unit
Driver type
Dynamic micro driver


Frequency response
90dB +/-3dB
Connector type
3.5mm (4 pole-stereo)
Cable length
1.38 metres
Driver unit
16 Ohm
Maximum input power
Connections input
3.5mm (4 pole-stereo)
Driver type
Dynamic micro driver

Weight and dimensions

Weight (kg)
0.016 (16g)

In the box

Standard accessories
Silicone tips: Six pairs in different sizes (S/M/L)
Comply tips: T-100 two pairs in (M/L)
Carrying pouch
Cable clip
Safety guide
Earphone cable with microphone


Warranty (years)


Verified owner
HEM Dynamic