#1
Sony MDR-7506
Closed-back · 63Ω$60–$100 usedBest for: Tracking, studio monitoring, durability, value
The Sony MDR-7506 has been the standard studio tracking headphone since 1991. You find them in every recording studio, broadcast facility, and live venue sound booth because they're accurate, lightweight, fold flat for storage, and cost $60–$100 used. The frequency response is slightly bright, which helps identify harshness in recordings. Every major recording studio owns dozens of pairs. If you need one headphone that works in every professional context, this is it.
What to check used: The coiled cable can be stiff on older units — check the cable for fraying near the connectors. The ear pad foam degrades over time; replacement pads are $10–$15. The driver unit itself almost never fails.
#2
Audio-Technica ATH-M50x
Closed-back · 38Ω$80–$130 usedBest for: All-around production, mixing, referencing
The ATH-M50x is the most popular studio headphone among home producers. It has a slightly enhanced low-end and high-end response compared to the MDR-7506 — which makes it more enjoyable to listen to but slightly less accurate for mixing reference. For producers working in bass-heavy genres (hip-hop, EDM) who need to hear sub-bass, the M50x's extended low end is a genuine advantage. Detachable cables are a practical upgrade over the MDR-7506.
What to check used: Check that all three included cables (coiled, straight short, straight long) are present. The hinge mechanism can crack on older models — check both hinges flex smoothly. The detachable cable connector should click in cleanly.
#3
Beyerdynamic DT 770 Pro
Closed-back · 80Ω (also 32Ω and 250Ω versions)$100–$170 usedBest for: Tracking, vocal booth monitoring, extended listening
The Beyerdynamic DT 770 Pro is built for long recording sessions — the German engineering shows in the velour ear pads (more comfortable than the leatherette on MDR-7506 and M50x), the fixed cable, and the robust driver housing. The bass response is excellent — warm but not exaggerated. Beyerdynamic has made this design for 40+ years with minimal changes because there's nothing to improve. Used at $100–$170, these are exceptional value.
What to check used: The DT 770 Pro comes in 32Ω, 80Ω, and 250Ω versions. The 80Ω is the most versatile (works with most audio interfaces without amplification). The 250Ω requires a headphone amplifier. Verify the impedance before buying.
#4
Sennheiser HD 25
On-ear closed-back · 70Ω$120–$180 usedBest for: DJ monitoring, broadcast, loud environment tracking
The Sennheiser HD 25 is the standard DJ headphone and broadcast monitoring headphone — designed to be heard clearly in loud environments. The single-sided cable and on-ear design lets DJs cup one ear against their ear while monitoring through the monitors with the other. The clamping force is strong, which keeps it in place during active use. Used HD 25s are repairable at the component level — every part is user-replaceable.
What to check used: The strong clamping force is a feature for DJs but can be fatiguing for long mixing sessions. Check that the split headband is intact. The cable is field-replaceable — verify the connection is clean. On-ear design means less isolation than over-ear headphones.
#5
Audio-Technica ATH-R70x
Open-back · 470Ω$180–$280 usedBest for: Mixing, mastering, detailed referencing
The ATH-R70x is Audio-Technica's open-back reference headphone — designed for mixing and mastering where accurate spatial representation matters. Open-back headphones produce a wider, more natural stereo image than closed-back but leak sound bidirectionally (they don't work for tracking in a loud room). The R70x is widely praised for an honest, detailed frequency response with no hyped frequencies. For mix engineers who need reference headphones for home studio use, the R70x is the best value at this tier.
What to check used: Open-back headphones are NOT suitable for live monitoring or loud environments — they leak sound and pick up room noise. Verify the 470Ω impedance works with your interface's headphone output (may need a headphone amp). Check that both sides produce equal output.
#6
Sennheiser HD 650
Open-back · 300Ω$200–$320 usedBest for: Audiophile mixing, high-quality referencing, detailed work
The Sennheiser HD 650 is one of the most respected mixing and mastering headphones ever made. Open-back, 300Ω, velour ear pads, and a frequency response that is revealing and honest without being harsh. Professional mixing engineers and mastering engineers rely on the HD 650's detailed midrange for evaluating vocal processing, reverb tails, and spatial positioning. Used at $200–$320, they represent exceptional value for professional-grade reference work.
What to check used: The 300Ω impedance requires a quality headphone amplifier for proper output level and control. Without an amp, they sound thin and lacking dynamics. Verify the dual cable termination (Y-cable, one side per ear) is intact and has no shorts.
#7
Shure SRH440A
Closed-back · 44Ω$60–$100 usedBest for: Budget studio monitoring, tracking, general production
The Shure SRH440A is the budget professional's choice — accurate, comfortable, and affordable. Flat frequency response makes it suitable for mixing reference (less hyped than the ATH-M50x). Used at $60–$100, it's a genuine studio headphone from a professional audio brand, not a consumer-grade product dressed up for studio use. If the MDR-7506 is the industry standard, the SRH440 is the professional alternative from a different heritage.
What to check used: Shure SRH440 pads can wear out faster than Sennheiser or Beyerdynamic pads — check pad condition. The cable is coiled and can be stiff. Verify the driver is working in both channels with no phase issues.
#8
Beyerdynamic DT 990 Pro
Open-back · 250Ω$100–$160 usedBest for: Mid-budget open-back mixing, electronic music production
The DT 990 Pro is the open-back sibling of the DT 770 — same construction quality, same velour comfort, but the open design produces a wider stereo image for mixing. The frequency response has slightly enhanced highs and bass versus the DT 770's more neutral character. For electronic music producers who work in high-frequency-intensive genres (electronic, pop), the DT 990 Pro's detailed highs are informative. Used at $100–$160, one of the best value open-back options.
What to check used: Open-back design leaks sound bidirectionally — not suitable for tracking. The 250Ω version requires proper amplification. Check both ear pad cushions are intact and the headband swivel moves correctly.