Simgot ET142 Planar + PZT IEM – Deep Thoughts By A Handy Guy

The $219.99 Simgot ET142 comes out blazing a path for 7Hz domination. With heavy Litz cables, a deep insertion and a “W” shaped tune the ET142 will be a strong player in the Planar driver wars.

INTRO

As another year rolled in, so did the Simgot ET142 at my doorstep, unannounced and unsure what to expect. Simgot jumped into the foray of planar power with the Supermix 4 and the ET142, with the latter actually a bit more exciting with powerful and forceful bass lines,  sprinkled with a hint of extra sugar in the treble. As Marty McFly might say, “Whoa, this is Heavy”. I consider Simgot to build excellent sounding mid-tier earphones such as the EN700 Pro, and they continually hit the mark, while some that stand out more than others. The ET142 is sure to stand out.

PACKAGE CONTENTS

Rarely do I comment on the packaging, but Simgot clearly wanted some kind of experience with the ET142 as the accessories were tucked into every nook and cranny and each box labeled. When I opened the clean looking leather stitched carrying case, the 3.5mm and 4.4mm balanced interchangeable jacks were Inside.

Also within the package are two nozzles– review update: four nozzles, one gold, one burnished, one stainless red o-ring with foam, and one stainless with black o-rings. There was also some extra tuning foam that can be inserted into a pair of the nozzles without it, but must be done by the user. The stainless ones are a bit shorter but the lip is also thinner making them sharper to install. The blued titanium ones are supposed to enhance harmonics, given that heating typically hardens the material.

While I am not a fan of fingerprint magnet shiny shells, they are heavy and brute tough. The silver twisted Litz cable is quite a looker, whip strong and heavy as well. Cable density brings to mind the term fire hose. The Simgot ET142 is not an earphone you will forget you are wearing, it demands attention.

The extra long nozzles on the ET142 ensure a clear fitment is achieved, so much so I had to size down to the small ear-tips when usually I go for medium. The sheer amount of nozzle jammed deep does help with isolation, although we are not talking Etymotic level. Update 2/15/2025: There are 3 different types of ear tips to find the right fitment and to tweak certain frequencies. The extra eartips came after my initial review was published, along with spare o-rings if the others are damaged or lost.

Simgot ET142 review update 2/25/2025: The standard style white eartips provide the deepest insertion. If you need less the gray ones provide the shortest fitment and combined with the shorter stainless nozzles can be less intrusive. I find the medium gray tips to be equal in size to the small white ones and provide a good seal. Also adds a bit more punch in the bass. The black eartips loosen up the bass and some punch is softened. I find the bass less focused and the least controlled when using the black eartips making it sound a bit spongey.

SOUND

Tested with Dragonfly Cobalt, SMSL DO400 and FiiO KA15

The Planar driver inside of the Simgot ET142 does most of the work, with the piezo driver picking up somewhere in the upper treble. Perhaps Simgot felt it needed some extra zing, I would be curious what it sounds like without it. At times the treble exhibited some sibilance, which is why I think maybe not required. Review Update 2/15/2025: The red and black filters with the foam tame some of the upper treble that was sounding a bit sharp with blue and brass nozzles.

ET142 bass presents punchy taut bass lines stopping short of ultra snappy. Overall it has a forceful nature that sounds warmer than the 7Hz Timeless which skews mostly sub-bass, but still has the similar tightness. At times the bass lines sound more forward and boisterous than intended on the ET142. Bleeding seems to be occurring due to the amount of boost. The Sivga Nightingale has an even darker nature to the bass with less control.

While the 7Hz Timeless offers a U shaped signature with a relatively level midrange and the Simgot ET142 adds more energy in the upper treble region. This shifts the stage forward also adding more twang to acoustic guitars. The ET142 wants you to feel those strong plucks and be up close and personal with the cymbal strikes. Review Update: The stainless red and black bring down these levels making them more western ear friendly. They take on a diffuse filed signature tune pushing staging backwards most notable with the red nozzles, while still maintaining great resolution. I am happy to report the extra midrange from the blue and brass nozzles is not resolution trickery.

Vocals sound fired up as the vocalists hit those higher notes catching lots of tongue work and breathtaking, riding that fine line between honkiness and just energetic. In comparison the 7Hz Timeless sounds softer and sweeter through this range, but you get essences of sharp slices that dissipate as quickly as they arrive. As a result it sounds sharper than the ET142 which has more harmonics to mask aggressive vocalists.

Resolution between the Simgot ET142 and 7Hz Timeless are equal partners, for me it comes down to the Timeless staging feeling further away to provide more room for instruments to fill the space. The ET142 on the other hand has more pop front to back at the expense of sitting in the front row. Review Update: The red filters adjust this parameter. If anything I feel that the Simgot ET142 provides better front to back dimensional space with the stainless filters.

FINAL VERDICT

The Simgot ET142 has a premium build quality written all over it while using what may be a standard Planar driver we have seen tuned differently by the likes of Tinhifi, LetShuoer, HIDIZS and 7Hz to name a few. The quick transient nature of the planar driver teamed with a super tweeter piezo warms your toes and smacks you in the head with the highs. This is quite the package at $219 and priced extremely competitive given all the quality accessories and tuning adjustments. Price was not published at the time of this review.

If the 7Hz Timeless U shape tuning and flatter staging does not fit the bill, the Simgot ET142 provides an alternative if the stronger bass and upper treble twang is desired, or use the red and black filters to find an overall signature closer in comparison. The Simgot ET142 stands out more to me than their Supermix 4, which is a non-threatening option. Unfortunately I do not have the 7Hz Timeless 2 to compare, but I would not be disappointed with this high quality pick, Salute. Review Update: With the added stainless steel filter options I am a true fan.

Disclaimer: Sent Unsolicited and free of charge from Simgot. Availability and pricing unknown at the time of this review. Simgot sent two more sets of eartips and two more nozzles after initial publication. Review is under modification 2/15/2025.

SIMGOT ET142 SPECIFICATIONS

GRAPHS

• Simgot ET142 Left vs Right
• With vs Without foam
• Simgot ET142 Tuning Nozzle Comparisons (Review update 2/15/2025)
• Simgot ET142 vs 7Hz Timeless (Updated 2/15/2025)

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About my measurements.