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Sennheiser Pro Audio IE 100 Pro1 / 11
In their words

@swift_comet_37 · Owner-reported

Owned 6–12 months · Still using it: sometimes · Posted

The product quality is quite average considering the price. However, it has a unique peak in the high frequencies, which gives vocals a distinctive expression. As a result, it's not very suitable for monitoring.

Would not buy again

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Sennheiser

Sennheiser Pro Audio IE 100 Pro

If you can get past the modular solution to a wired and wireless need, the IE 100 PRO Wireless sounds really nice for the price.

Current price · Amazon US
$159
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Price last checked 2d ago

Owners (1)
0of 1
Buy againOwner reported

Would not buy it again; still uses it sometimes.

Owned 6–12 months.

  • Fit and comfort over hours1 as expected
  • How much they block out1 as expected
  • Cable in daily use1 as expected
  • Shells and connectors after months1 as expected

Key specs

Material Chassis Primary
Plastic
Resin29%Plastic24%Aluminum18%Metal16%

Plastic appears on 24% of the 49 in-ear monitors we've cataloged (of 38).

Connection Type
Most common
Wired-3.5mm95%Bluetooth5%

Bluetooth is the most common — on 5% of the 37 in-ear monitors we've cataloged (of 38).

Ear Tip Material
Most common
Silicone65%Memory foam20%Foam12%Others4%

Memory foam is the most common — on 20% of the 51 in-ear monitors we've cataloged (of 38).

Has Microphone
Yes
False68%True32%

True appears on 32% of the 34 in-ear monitors we've cataloged (of 38).

Build

Material Chassis Primary
Plastic
Sweat Resistance
No
Water Resistance
No

Connectivity

Connection Type
Wired-3.5mm, bluetooth
Bluetooth Codec
AAC, aptX, aptX Low Latency, SBC
Bluetooth Version
5.0
Cable Type
3.5mm single-ended, detachable

Design

Ear Tip Material
Silicone, memory foam
Color Options
Black, clear, red
Ear Tip Sizes Included
S, M, L, M
Earbud Form Factor
In-ear
Detachable Cable
Yes
Wearing Style
Over-ear (cable up)
Weight With Case
160 g

Microphone

Has Microphone
Yes

Sound

Driver Size
10 mm
Driver Count
1
Driver Type
Dynamic
Frequency Response Signature
Neutral
Impedance
20 Ω
Sensitivity
115 dB/mW

Battery

Charging Method
USB-C
Full Charge Minutes
90 min

Features

Inline Controls
Yes

Identity

Model Number
509171

Release

Date
2021-03-05
Msrp Usd
149 USD
Year
2021

Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.

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Sennheiser Pro Audio IE 100 Pro Frequency Response (measured on a B&K 5128)

Measured frequency response (dB relative) against the SoundGuys Headphone Preference Curve. When the measurement goes above the dashed line, that frequency is louder than our preference curve, and when it goes below: it's quieter. Use the curve for comparison purposes only, as your taste may vary.-20-15-10-50+5+10+15+20201001k10k20kdB (Relative)Frequency (Hz)

Click a line or a legend entry to highlight it. Click again to clear.Tap a legend entry to highlight its line. Tap again to clear.

Measured frequency response (dB relative) against the SoundGuys Headphone Preference Curve. When the measurement goes above the dashed line, that frequency is louder than our preference curve, and when it goes below: it's quieter. Use the curve for comparison purposes only, as your taste may vary.

Sennheiser Pro Audio IE 100 Pro: frequency response, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)Response (dB)
200.5
251.5
322.2
402.8
503.1
633.2
803.1
1002.8
1252.3
1601.5
2000.6
250-0.2
315-0.8
400-1.8
500-2.5
630-2.5
800-1.4
1000-0.2
12501.3
16002.4
20003.3
25003.9
31504.2
40004.6
50006.1
63006.0
80005.1
100006.8
125003.4
16000-7.5
20000-24.6

SoundGuys review

SOUNDGUYS rating
6.8/ 10
Worth a look
Jasper Lastoria
Reviewed byJasper LastoriaWriterReviewed December 2021
Isolation3.1
Comfort & fit4.2
Connectivity9.0
Design8.5
Portability8.5
Features7.5

The verdict

This unique product by Sennheiser sounds great, and offers a lot of flexibility for its price. You can use it on stage or take it to go and casually listen to music.

✓Liked: SBC, AAC, aptX, aptX Low Latency, Bluetooth 5.0 and 3.5mm connections, Portable, Very good sound quality

✕Could be better: No IP rating, Bluetooth connector module is annoying, Mic and controls only on Bluetooth connector, Uncomfortable over long sessions

Read the full SoundGuys review →

What a reader who owns the Sennheiser Pro Audio IE 100 Pro reports after living with it. Owner-reported, checked before publishing; ordered photo-verified first, then newest.

Owner reviews are not paid for, not solicited from specific owners, and not rewritten by us: at most we proofread typos, which is shown on the review’s own page and which the author can undo. The commission SoundGuys may earn on this page comes from retail links, never from owner reviews.

1 owner review

SCEvery author writes under a generated pseudonym; a member can choose to show their name and photo beside it. A signed-in author’s email is never shown. Read more · The reader says they own it. We have not seen proof, and we say so — no label here is proof of a purchase. Read more · Owned 6–12 months · Still using it: sometimes · Posted

Would not buy again

The product quality is quite average considering the price. However, it has a unique peak in the high frequencies, which gives vocals a distinctive expression. As a result, it's not very suitable for monitoring.

Showing 1 of 1 owner review · sorted by newest

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Questions from readers

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0 of 1 would buy again

1 owner

Expected more from the cable

— @deep_viola_73
$84.99at Amazon
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