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JBL

JBL Quantum 400

Name: JBL Quantum 400
Brand: JBL
SKU: B084CZDX61
Price: 109.95 USD

The JBL Quantum 400 is a great gaming headset for PC gamers who want spatial sound, good sound quality, and a solid microphone.

Current price · Amazon US

$109.95

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Price last checked 1d ago

SoundGuys review

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SOUNDGUYS rating

6.4/ 10

Worth a look

Reviewed bySam SmartWriterReviewed July 2022

Isolation2.9

Comfort & fit7.7

Connectivity6.5

Design7.0

Portability4.5

Features8.0

The verdict

The JBL Quantum 400 headset is a great choice for PC gamers looking for comfort, spatial sound capabilities, good sound, and a solid microphone. This headset does a lot without breaking the bank.

✓What we like

✓Comfortable ear cups

✓Good sound quality

✓Spatial sound capabilities

✓Helpful software

✕What could be better

✕Software only available on Windows

✕Microphone only moves up and down and is not detachable

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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JBL Quantum 400SoundGuys 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

JBL Quantum 400: frequency response, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Response (dB)
20	4.1
25	4.1
32	4.6
40	5.1
50	3.6
63	5.2
80	7.2
100	7.2
125	4.6
160	0.5
200	-2.9
250	-5.8
315	-7.5
400	-6.8
500	-3.5
630	-1.2
800	-0.3
1000	0.1
1250	0.8
1600	2.0
2000	3.3
2500	5.8
3150	7.1
4000	-2.7
5000	-2.4
6300	3.3
8000	10.1
10000	2.3
12500	1.2
16000	-4.7
20000	-11.5

JBL Quantum 400

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

JBL Quantum 400: passive isolation, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Attenuation (dB)
21	-0.5
26	-0.0
33	0.5
41	0.7
52	0.1
65	-1.6
82	-0.2
103	-0.4
130	2.8
163	5.3
205	6.5
259	6.5
325	6.0
410	4.3
516	4.0
613	5.4
772	8.0
972	12.3
1220	14.1
1540	16.6
1940	16.5
2440	22.0
3070	20.5
3870	26.8
4870	30.4
6130	25.5
7720	18.0
9720	17.4
12200	12.4
15400	16.1
19400	12.0