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Sennheiser's new IE 600 IEMs feature hand-finished 3D-printed zirconium shells (Updated)

By Kenny Yeo - on 16 Apr 2022, 9:56am

Sennheiser's new IE 600 IEMs feature hand-finished 3D-printed zirconium shells (Updated)

tNote: This article was first published on 3 March 2022 and was updated on 6 March 2022 with local availability and pricing details. It was updated again on 7 April 2022 with our first impressions.

Sennheiser IE 600 (Image source: Sennheiser)

Last year, Sennheiser embarked on a mission to completely refresh its lineup of in-ear monitors (IEMs). It began with the entry-level IE 300 and then we had the flagship IE 900. Now, we have the mid-range model and it's called the IE 600.

At first glance, the IE 600 looks remarkably similar to the IE 300 and IE 900. That's no bad thing. Those are two of the most comfortable IEMs I've ever worn, so the IE 600 should be just as comfy to wear.

The difference, however, lies in the materials. The IE 600's chassis is made from 3D-printed AMLOY-ZR01 amorphous zirconium metal. The material was chosen for its hardness, appearance, and the fact that chambers and channels can be formed to high precision during the manufacturing process with no milling required.d

After the shells have been made, Sennheiser removes any artefacts by hand. It is then cleaned, steel shot blasted, and polished, to achieve its final look, which, Sennheiser says, is extremely resistant to wear.

The IE 600 uses Sennheiser's trusty 7mm TrueResponse dynamic driver. (Image source: Sennheiser)

Inside, the IE 600 uses Sennheiser's tried-and-test 7mm True Response transducer. Two resonator chambers are used to meet Sennheiser's target tuning, which is the company describes as "neutral with fast, accurate bass."

The IE 600 has gold-plated MMCX connectors and comes with two para-aramid reinforced cables – one unbalanced that terminates in a 3.5mm connector, and a balanced one that terminates in a 4.4mm connector.

Other accessories include three pairs of silicone ear tips, three pairs of foam ear tips, a carrying case, a cable clip, and a cleaning tool.

 

First impressions (added on 7 April 2022)

The IE 600's 3D-printed amorphous zirconium shell is gorgeous.

In my short time with the IE 600, I found that it has more similarities with the IE 900 than differences. Tonally, the two sound quite similar, with shouldn't be surprising given that they are based on the same driver and are tuned by Sennheiser to appeal to discerning listeners, aka audiophiles.

The difference I found was that the IE 600 sounded more intimate, less wide, and less spacious. Perhaps that's due to the fact that its sound is piped through two resonator chambers instead of the IE 900's three. The mids also appear to sound more balanced than the IE 900's, while the treble seems to be oh-so-slightly brighter. 

Fact is, the two sound quite similar and I will need more time to suss out their differences. But based on first impressions alone, I think the IE 600 will be remarkable value seeing that the IE 900 is nearly double in price.

 

Availability and pricing

There's no word yet on local availability and pricing. However, the Sennheiser IE 600 will go on sale in Europe on 8 March and will be priced at €699 (~S$1,066). We will update this article once we receive local  availability and pricing details.

Sennheiser Singapore's website has just been updated with pricing details of the IE 600. It is priced at S$1,099. Availability has yet to be determined. The website only says it's "Coming Soon".

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