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thinksound

thinksound OV21

Name: thinksound OV21
Brand: thinksound
SKU: B09MH81PXR
Price: 97.00 USD

Like Lazarus, Thinksound is back.

Current price · Amazon US

$97

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Price last checked 1d ago

Key specs

Acoustic Design

Closed-backMost common

Closed-back57%Open-back35%Semi-open8%

Closed-back is the most common — on 57% of the 65 studio & professional headphones we've cataloged (of 68).

Impedance

50 ΩAbove average

50 Ω

18 Ω120 Ω

above average for studio & professional headphones — based on 51 of 68 we've cataloged.

Frequency Response

5-22000 Hz

Connection Type

Wired-3.5mmMost common

Wired-3.5mm91%Wired-6.35mm9%

Wired-3.5mm is the most common — on 91% of the 66 studio & professional headphones we've cataloged (of 68).

Sound

Acoustic Design: Closed-back
Impedance: 50 Ω
Frequency Response: 5-22000 Hz
Driver Size: 45 mm
Driver Type: Dynamic driver
Frequency Response High Hz: 22000 Hz
Frequency Response Low Hz: 5 Hz
Frequency Response Signature: Neutral
Sensitivity: 99 dB/mW

Connectivity

Connection Type: Wired-3.5mm
Cable Type: 3.5mm single-ended, straight detachable

Design

Weight: 453 g
Clamping Force: 250-300 g
Color Options: Black, walnut
Ear Pad Type: Memory foam, vegan faux leather
Detachable Cable: Yes
Foldable: No
Headband Type: Adjustable over-head

Build

Material Chassis Primary: Walnut wood, bioplastic
Material Ear Cups: Memory foam, vegan faux leather

Identity

Model Number: Ov21

Microphone

Microphone: Yes

Release

Date: 2021-11-24
Msrp Usd: 399 USD
Year: 2021

SoundGuys review

Read the full review ›

SOUNDGUYS rating

6.9/ 10

Worth a look

Reviewed byJasper LastoriaWriterReviewed February 2022

Isolation4.3

Comfort & fit7.5

Connectivity6.5

Design8.8

Portability5.5

Features7.9

The verdict

You'd be hard pressed to find a better sounding and environmentally conscious set of headphones than the Thinksound ov21. What's more, it doesn't feel like it was made just to satisfy green initiatives. Ultimately, we buy headphones we like the look, feel, and voicing of, and the ov21 ticks those boxes.

✓What we like

✓Environmentally friendly

✓Plush ear pads

✓Two cables

✓Good sound quality

✓Comfortable fit for size

✕What could be better

✕Some heat build up after an hour

✕Limited fit adjustments

✕Price

Read the full SoundGuys review →

Lab data

How we test ›

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

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0 of 4 overlay slots used

thinksound OV21SoundGuys Headphone Preference Curve

Measured frequency response (dB) against the SoundGuys house target — the dashed curve. The closer the measured line tracks the target, the more neutral the tuning; peaks ride above the target, dips fall below it.

Frequency response — measurement data

thinksound OV21: frequency response, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Response (dB)
20	4.7
25	5.0
32	5.0
40	4.5
50	3.8
63	2.3
80	-0.2
100	-0.9
125	-2.0
160	-4.6
200	-6.6
250	-6.8
315	-5.9
400	-5.2
500	-4.0
630	-2.8
800	-1.3
1000	0.0
1250	1.3
1600	3.6
2000	6.5
2500	10.2
3150	13.2
4000	11.3
5000	6.0
6300	10.2
8000	11.0
10000	8.4
12500	3.9
16000	-1.8
20000	-16.5

thinksound OV21

Passive isolation (dB) with ANC off — how much ambient noise the fit blocks on its own. Higher on the chart means more attenuation.

Passive isolation — measurement data

thinksound OV21: passive isolation, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Attenuation (dB)
21	-6.7
26	-0.9
33	-0.2
41	-0.1
52	-0.1
65	-0.2
82	-0.9
103	-1.0
130	-1.5
163	-1.5
205	0.7
259	3.6
325	6.4
410	8.1
516	7.4
613	7.6
772	6.0
972	9.0
1220	15.4
1540	20.7
1940	22.0
2440	31.8
3070	30.1
3870	34.9
4870	32.5
6130	30.3
7720	36.5
9720	35.6
12200	29.7
15400	33.4
19400	38.4