If you want a closed-back wired headphone with a 2.5-meter cable and bass response reaching 18 Hz, choose AKG K52; if you need a longer 3-meter cable, a slightly higher sensitivity figure, and a 16 Hz low-frequency reach, choose Harman AKG Pro Audio K72. For glasses wearers, both are over-ear, closed-back wired headphones; neither is a Bluetooth option, so the choice comes down to their practical differences.
• AKG K52: 40 mm drivers, a self-adjusting headband, closed-back isolation, and a 2.5-meter single-sided cable; its listed frequency range begins at 18 Hz.
• Harman AKG Pro Audio K72: 40 mm drivers, a self-adjusting headband, closed-back isolation, and a 3-meter cable; its listed frequency range begins at 16 Hz.
• Both are wired, over-ear designs with 32-ohm impedance, so neither offers wireless listening or a battery.
• The K52 suits someone who wants a straightforward wired headphone with a shorter cable; the K72 suits someone who would use the extra cable length or included 6.3 mm adapter.
• For glasses wearers choosing between these two, both have the relevant over-ear design, but the supplied details don’t establish which will feel more comfortable with a particular pair of frames.
The AKG K52 is a practical pick for listening at a desk, monitoring audio, or connecting to a compatible portable player. Its 40 mm dynamic drivers and 32-ohm impedance make it suitable for a range of playback devices, while the wired 3.5 mm connection keeps the setup simple. There’s no battery to charge and no wireless pairing to manage.
Its closed-back, over-ear construction is intended to keep sound from leaking out and to reduce distraction from outside noise. That can be useful when listening in a shared space or when you want your audio directed toward your ears. The single-sided 2.5-meter cable is long enough to provide some room to move around a desk, though it is shorter than the K72’s cable.
The K52’s self-adjusting headband is designed to adapt to the wearer, and the product information describes its build as lightweight for extended listening. For glasses wearers, that over-ear format is the right type to consider, but ear-cup pressure against frames can vary from person to person. The listed response begins at 18 Hz and reaches 20,000 Hz; that specification describes the range, not a guarantee that every listener will hear every frequency equally.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-21 · 7 min read · Independent comparison
Who should skip it: Skip the K52 if you specifically need a 3-meter cable or the included 6.3 mm adapter listed with the K72.
The Harman AKG Pro Audio K72 is another wired, closed-back over-ear model built around 40 mm drivers. Its 32-ohm impedance is the same as the K52’s, and its 3.5 mm connection makes it a straightforward match for compatible gear. It is described as suitable for both studio equipment and portable devices, so it can fit a listening setup that moves between a desk and another compatible source.
The K72’s most tangible practical difference is its 3-meter cable. That extra length may be helpful when a device or audio interface sits farther from your chair, or when you want more slack while working. It also includes a screw-on 3.5 mm-to-6.3 mm adapter, which can help connect the headphone to equipment with a 6.3 mm socket. The K52 sheet does not list that adapter.
Like the K52, the K72 uses a self-adjusting headband and closed-back ear cups. Its listed frequency range starts at 16 Hz and extends to 20,000 Hz, compared with the K52’s stated 18–20,000 Hz range. The K72 also lists 112 dB sensitivity, versus 110 dB for the K52. These figures distinguish the specifications, but they do not by themselves settle which headphone will sound better to you. For glasses wearers, the over-ear design is relevant, while individual comfort still depends on how the cups sit around your frames.
Who should skip it: Skip the K72 if you prefer a shorter cable and have no use for the extra length or 6.3 mm adapter.
• Best for extra reach from your audio source → Harman AKG Pro Audio K72. The longer cable gives more slack when a desk, interface, or other compatible device is farther away.
• Best if you need a 6.3 mm connection option → K72. Its listed package includes a screw-on 6.3 mm adapter alongside the 3.5 mm connection.
• Best if you want the lower listed frequency limit → K72. Its range begins at 16 Hz; the K52’s begins at 18 Hz. That difference is a specification, not a promise of a dramatic audible change.
• Best if you want the K52’s stated sensitivity and cable combination → K52. It lists 110 dB sensitivity and a 2.5-meter cable, compared with the K72’s 112 dB and 3-meter cable.
• Best for closed-back listening in a shared room → Either. Both use a closed-back design intended to limit audio leakage and help keep outside distractions down.
• Best for glasses wearers seeking over-ear headphones → Either, with a fit check in mind. Both are over-ear models with self-adjusting headbands, but the available specifications don’t say how each ear cup will press against individual frames.
• Best for someone seeking wireless listening or long battery life → Neither. Both are wired headphones, so they don’t use Bluetooth or a rechargeable battery.
Buying Considerations
Think about where the cable will go before choosing. A longer lead can be convenient if your listening position is away from the audio source, but it can also mean more cable to route or store. If your setup is close at hand, the K52’s 2.5-meter cable may be the tidier match. If you want more reach, the K72 has the advantage.
Check your equipment’s socket, too. Both models list a 3.5 mm jack, while the K72 also lists a screw-on adapter for 6.3 mm connections. That distinction may matter with studio equipment, but it does not make the K72 wireless or change its basic wired design.
Finally, don’t treat small specification differences as a complete sound comparison. The K72 lists a 16 Hz lower frequency limit and 112 dB sensitivity; the K52 lists 18 Hz and 110 dB. Both have 40 mm drivers and 32-ohm impedance. Those details can help narrow the choice, but your needs around cable length, connection type, and listening setup are more concrete reasons to pick one.
I’d choose the Harman AKG Pro Audio K72 if I wanted one of these for a desk or studio-style setup: the 3-meter cable and included 6.3 mm adapter are useful, specific advantages. For glasses wearers, either model has the over-ear design I’d look for, but I’d put fit ahead of the small difference in frequency range. I’d choose the K52 instead if I wanted the shorter cable and didn’t need the adapter.
No. Both are wired models with a 3.5 mm connection. Neither is a Bluetooth headphone, and neither has a battery for wireless listening.
The listed frequency range starts at 18 Hz for the K52 and 16 Hz for the K72. That gives the K72 the lower stated limit, but the figures alone don’t establish how bass will sound to every listener.
Which is the better headphone for glasses wearers?
The K72 has a longer cable and includes a 6.3 mm adapter; the K52 has a shorter cable and a stated frequency range beginning at 18 Hz. Which makes more sense depends on your setup. Check the current price on Amazon if price is part of your decision.
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