Short answer: a tie on sound quality. Both are rated 3.5/5 (#123 and #131 of 216 over-ear headphones) at nearly the same price ($189 vs $193), so choose on features and fit.
What the Cooler Master MH752 does well: The bass is balanced and slightly full, about 1.8 dB over target, with sub-bass only about 1 dB under, so low notes keep some impact. The tradeoff: Presence and lower treble are 3.9 dB and 3.1 dB below target, and a 9.2 dB dip near 9.3 kHz dulls cymbals and consonants.
Why pick the Sony MDR-CD900ST: The bass and mids are close to target, with bass within 0.3 dB and low mids about 1.8 dB up, and the 63 ohm, 106 dB/mW design is easy to drive. Watch for: Sub-bass is about 8.7 dB under target and the highs roll off, with treble 4.5 dB low from 6 to 10 kHz and air 6.8 dB low above 10 kHz.
Buy the Cooler Master MH752 or the Sony MDR-CD900ST on features: they are rated the same for sound quality at close to the same price.
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Specifications Side By Side
| Cooler Master MH752 | Sony MDR-CD900ST | |
|---|---|---|
| Price | $189.00 | $193.00 |
| Ranked | #123 of 216 in Over-Ear Headphones | #131 of 216 in Over-Ear Headphones |
| Form Factor | Over-ear | Over-ear |
| Harman Preference Score | 71 (measured by oratory1990, via AutoEQ) | 70 (measured by oratory1990, via AutoEQ) |
| Deviation From Target | 2.37 dB standard deviation | 2.59 dB standard deviation |
| Tonal Tilt | -0.88 (negative is warmer, positive brighter) | -0.76 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.3 dB at 30 Hz) | Falls 6 dB below target at 50 Hz (-12.0 dB at 30 Hz) |
| Connection | Wired | Wired |
| Back | Closed | Closed |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 40mm dynamic | 1 x 40mm dynamic |
| Impedance | 26 ohms | 63 ohms |
| Sensitivity | 97 dB | 106 dB/mW |
| Weight | 0.6 lbs (250 g) | 0.4 lbs (200 g) |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | 5Hz - 30kHz (Manufacturer specified) |
| Built-in Microphone | Yes | - |
Related Headphone Comparisons
How Cooler Master MH752 compares with other leading options:
- Sennheiser HD 599 vs Cooler Master MH752
- Cooler Master MH752 vs Shure SRH840A
- Cooler Master MH752 vs Fostex T40RP Mk3
- Shure SRH840A vs Sony MDR-CD900ST
- Beyerdynamic DT770 Pro X Limited Edition vs Sony MDR-CD900ST
Prices on this page were last checked October 11, 2026 at 4:59 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Headphones In Full
Cooler Master MH752: $189.00 Amazon eBay
Pros: The bass is balanced and slightly full, about 1.8 dB over target, with sub-bass only about 1 dB under, so low notes keep some impact. Mids are close to target, within about half a dB through the vocal range. It is a closed 250 g design with a built in microphone and a 26 ohm impedance, so it works straight from a laptop or console.
Cons: Presence and lower treble are 3.9 dB and 3.1 dB below target, and a 9.2 dB dip near 9.3 kHz dulls cymbals and consonants. A 2.9 dB peak near 11.9 kHz and extra air above 10 kHz then bring back some fizz, so the top end sounds uneven rather than simply dark. Sensitivity of 97 dB means it needs a little more volume than the most efficient headphones.
Full Cooler Master MH752 review and specifications →
| Released | 2018 (8 years ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | Yes |
| Connection | Wired |
| Deviation From Target | 2.37 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 40mm dynamic |
| Form Factor | Over-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 71 (measured by oratory1990, via AutoEQ) |
| Impedance | 26 ohms |
| Sensitivity | 97 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.3 dB at 30 Hz) |
| Tonal Tilt | -0.88 (negative is warmer, positive brighter) |
| Weight | 0.6 lbs (250 g) |
EQ preset to match the Harman target
Set a preamp of -4.4 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.5 dB | 0.70 |
| Peak | 4,018 Hz | +4.9 dB | 1.74 |
| Peak | 2,707 Hz | -2.2 dB | 0.61 |
| Peak | 125 Hz | -5.3 dB | 1.92 |
| Peak | 6,555 Hz | +2.7 dB | 1.01 |
| High shelf | 10,000 Hz | -7.3 dB | 0.70 |
| Peak | 9,324 Hz | +3.2 dB | 2.01 |
| Peak | 511 Hz | +1.1 dB | 1.30 |
| Peak | 58 Hz | +1.1 dB | 3.43 |
| Peak | 1,025 Hz | -1.3 dB | 2.90 |
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Sony MDR-CD900ST: $193.00 Amazon eBay
Pros: The bass and mids are close to target, with bass within 0.3 dB and low mids about 1.8 dB up, and the 63 ohm, 106 dB/mW design is easy to drive. The lightweight 200 g closed back isolates well, and the neutral midrange has long suited monitoring work. Peaks are small, the biggest being 0.2 dB below target near 3.5 kHz.
Cons: Sub-bass is about 8.7 dB under target and the highs roll off, with treble 4.5 dB low from 6 to 10 kHz and air 6.8 dB low above 10 kHz. That leaves the sound thin at the bottom and dark on top, with little rumble or sparkle. A 5.9 dB dip near 6.2 kHz and a 2.4 dB dip in the upper mids also push vocals back.
Full Sony MDR-CD900ST review and specifications →
| Released | 1989 (37 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 2.59 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 40mm dynamic |
| Form Factor | Over-ear |
| Frequency Response | 5Hz - 30kHz (Manufacturer specified) |
| Harman Preference Score | 70 (measured by oratory1990, via AutoEQ) |
| Impedance | 63 ohms |
| Sensitivity | 106 dB/mW |
| Sub-bass Extension | Falls 6 dB below target at 50 Hz (-12.0 dB at 30 Hz) |
| Tonal Tilt | -0.76 (negative is warmer, positive brighter) |
| Weight | 0.4 lbs (200 g) |
EQ preset to match the Harman target
Set a preamp of -6.6 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +7.0 dB | 0.70 |
| Peak | 78 Hz | -3.6 dB | 0.76 |
| Peak | 1,982 Hz | +6.7 dB | 1.54 |
| Peak | 866 Hz | -2.9 dB | 0.18 |
| Peak | 6,984 Hz | +5.3 dB | 1.05 |
| High shelf | 10,000 Hz | +5.4 dB | 0.70 |
| Peak | 3,934 Hz | -1.1 dB | 2.86 |
| Peak | 7,718 Hz | -2.8 dB | 3.68 |
| Peak | 5,807 Hz | +1.6 dB | 4.16 |
| Peak | 188 Hz | -0.6 dB | 2.64 |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons