Two Tone / 13 products
Hi-fi & studio headphones
Open- and closed-back wired headphones.
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1–13 of 13 products
Sennheiser
Sennheiser HD 800 S Open-Back Headphones – Black
56 mm Ring Radiator drivers
The Sennheiser HD 800 S is a wired, open-back over-ear headphone for home listening and critical evaluation. Its 56 mm Ring Radiator dynamic transducers sit in angled earcups, with absorber technology designed to reduce unwanted resonances. The open construction lets room sound in and headphone sound out, making a quiet listening space more suitable than a busy commute. Sennheiser specifies 300-ohm impedance, so pair the headphones with an output capable of driving a high-impedance load at your preferred level. Detachable cable connections support the manufacturer-listed 6.35 mm single-ended and 4.4 mm balanced arrangements; balanced use needs a compatible output. No particular amplifier is included or mandatory by name. This listing is the Black HD 800 S alone, not the HDV 820 bundle or a closed-back HD 820.
Audeze
Audeze LCD-X Open-Back Planar Headphones – Leather-Free Black
106 mm planar-magnetic drivers
The Audeze LCD-X is a wired, open-back planar-magnetic headphone for critical listening and studio work. Its 106 mm transducers use the manufacturer’s Fazor phase-management technology and an ultra-thin diaphragm. Audeze publishes 20-ohm impedance, but a suitable headphone output is still important: low impedance alone does not establish that every phone or adapter will drive it comfortably. This listing follows the donor’s Leather-Free Black configuration, with no claim that 2024 is a separate official model generation. The open design does not isolate against room noise and allows sound to escape. Detachable cable connections support practical studio use, while the exact regional package must govern supplied accessories. Current manufacturer cable-package changes are not automatically assigned to the donor’s older retail listing. No interface, amplifier or desk equipment is included.
Meze Audio
Meze Audio 109 PRO Open-Back Headphones – Dark Walnut
50 mm dynamic driver
The Meze Audio 109 PRO combines an open-back design with Black Walnut Wood earcups and a 50 mm dynamic driver. The construction uses walnut, cast zinc, manganese steel and vegan-leather elements, with velour ear pads and a self-adjusting headband for over-ear listening. Meze publishes a 40-ohm impedance and a 5 Hz to 30 kHz frequency range. Dual 3.5 mm TS sockets connect the detachable cable to the two earcups, rather than providing a wireless connection. The open cups let room sound in and headphone sound out, making home listening in a quiet environment more appropriate than noisy commuting. This listing is the standard Dark Walnut 109 PRO, not the carved Primal edition. It does not include a music player or amplifier, and package cable claims are not borrowed from a different edition.
beyerdynamic
beyerdynamic DT 1990 PRO MKII Studio Headphones
Open-back wired studio design
The beyerdynamic DT 1990 PRO MKII is a wired, open-back over-ear studio headphone designed for mixing, mastering and editing. Its TESLA.45 dynamic driver is specified at 30 ohms: TESLA.45 is the technology name, not a 45-ohm impedance rating. The MKII must also be distinguished from the older 250-ohm generation. The open construction allows sound to escape and room noise to enter, so it is more suitable for a quiet studio than isolated live monitoring. A detachable single-sided mini-XLR cable connection supports replacement and transport, and the manufacturer lists 3 m straight and 5 m coiled cables. The padded headband incorporates a fontanelle recess intended to reduce pressure at the top of the head. This listing contains the MKII headphones rather than a microphone, audio interface or recording package. Bluetooth and battery-powered operation are not part of the design.
beyerdynamic
beyerdynamic DT 1770 PRO MKII Studio Headphones
Closed-back wired studio design
The beyerdynamic DT 1770 PRO MKII is a wired, closed-back over-ear studio headphone designed for recording, monitoring and editing. Its TESLA.45 dynamic driver is specified at 30 ohms: TESLA.45 is the technology name, not a 45-ohm impedance rating. The MKII must also be distinguished from the older 250-ohm generation. The closed construction provides passive isolation from the room; it is not electronic active noise cancellation. A detachable single-sided mini-XLR cable connection supports replacement and transport, and the manufacturer lists 3 m straight and 5 m coiled cables. The padded headband incorporates a fontanelle recess intended to reduce pressure at the top of the head. This listing contains the MKII headphones rather than a microphone, audio interface or recording package. Bluetooth and battery-powered operation are not part of the design.
Focal
Focal Hadenys Brown Open-Back Headphones
Open-back wired headphone
The Focal Hadenys is a brown, passive wired headphone built for listening in a quieter home environment. Its open-back construction allows sound to pass through the earcups, so it is not intended to isolate the listener in the same way as a closed headphone. Each side uses a 40 mm aluminium and magnesium driver with Focal’s M-shaped dome. The manufacturer specifies a 26-ohm impedance and an analogue connection, rather than wireless playback or USB audio. Open-back headphones can also leak sound to people nearby, which is worth considering for shared rooms. There is no battery, Bluetooth receiver or active noise cancellation to charge or configure. Pair the headphones with a suitable headphone output, DAC or amplifier. This listing is for the Hadenys headphones in brown, with exact-model packshots retained and standalone accessory and dark scene images removed.
Audeze
Audeze MM-100 Open-Back Planar Headphones – Black
90 mm planar-magnetic drivers
The Audeze MM-100 is a wired, open-back planar-magnetic headphone developed for music production and critical listening. Its 90 mm transducers use Fluxor magnet arrays and Fazor phase-management elements, within a chassis built from magnesium and steel with a spring-steel headband. The manufacturer specifies 18-ohm impedance and a weight of 475 g. The supplied cable can connect to either earcup, allowing the lead to sit on whichever side suits the desk or studio setup. Open cups permit sound leakage and do not provide isolation from surrounding noise, so they work best in a quieter listening space. A compatible headphone output is required; the MM-100 is not a Bluetooth headset and has no built-in microphone or rechargeable battery. This listing contains one Black headphone, not a full recording system.
Sennheiser
Sennheiser HD 660S2 Open-Back Headphones – Black
38 mm dynamic transducers
The Sennheiser HD 660S2 is a wired, open-back over-ear headphone with 38 mm dynamic transducers and 300-ohm impedance. The design refines the earlier HD 660 series with revised airflow and voice-coil construction, with the manufacturer describing extended sub-bass performance. This is not a headphone whose bass response stops at 70 Hz: the published frequency range is 8 Hz to 41.5 kHz. Open earcups allow sound leakage and do not provide closed-back isolation, so a quieter room is preferable. Detachable cable arrangements support 6.35 mm single-ended and 4.4 mm balanced connections, with a suitable source required for whichever output you choose. A capable headphone output is advisable for the 300-ohm load; no amplifier is included. The listing is the Black S2 version, not the original HD 660S.
Focal
Focal Azurys Blue Closed-Back Headphones
Passive closed-back wired design
The Focal Azurys is a passive wired headphone in a blue finish, designed for listening at home or while travelling with a suitable audio source. Its closed-back earcups use 40 mm aluminium and magnesium drivers with Focal’s M-shaped dome construction. The closed enclosure helps separate listening from surrounding sound, but this is not an active noise-cancelling or Bluetooth headphone. A 3.5 mm analogue connection links it to compatible equipment, and its specified impedance is 26 ohms. A source without an analogue headphone socket will need an appropriate external adapter or DAC. The magnesium yoke and padded headband support everyday handling and fit. This listing supplies the Azurys headphones, rather than a player or amplifier. The gallery shows the exact blue model and its carrying case; standalone cable and stylised scene photographs have been omitted.
FiiO
FiiO FT5 Black Open-Back Planar Headphones
Open-back planar magnetic headphone
The FiiO FT5 is a black wired headphone using an open-back planar magnetic design. Its 90 mm drivers employ a PAR diaphragm and aluminium-alloy coils, rather than the dynamic driver construction found in many conventional headphones. The manufacturer specifies 36-ohm impedance and quotes sensitivity with separate voltage and power references; those figures should not be mixed when comparing equipment. The open earcups allow sound to escape, making this model better suited to a quiet listening space than a noisy commute or a shared recording position. It has no Bluetooth, battery or active noise cancellation. A compatible headphone output is required, and amplifier capability should be considered alongside impedance and desired listening level. The detachable cable system supports the supplied connector arrangement, but source compatibility still matters. This listing contains the FT5 headphones, with five clean views of the exact model retained.
Pioneer DJ
Pioneer DJ HDJ-X10-K Black Wired DJ Headphones
Black HDJ-X10-K over-ear wired model
The Pioneer DJ HDJ-X10-K is a black over-ear wired headphone designed for DJ monitoring. Its fifty-millimetre drivers have a manufacturer-stated frequency range of five hertz to forty kilohertz; that extended range is not a promise that every frequency is audible. The closed earcups and swivel mechanism support flexible listening positions when cueing tracks and checking a mix. A detachable cable makes replacement possible without replacing the entire headphone, and the supplied one-point-two-metre coiled cable and one-point-six-metre straight cable provide different working options. The ear pads and headband cushion use coated polyurethane leather that can be wiped clean according to the care instructions. A flat carrying case is included for storage and transport. This is the black HDJ-X10-K, not the silver variant, and it is a wired-only model: no Bluetooth connection, wireless transmitter or battery runtime is claimed. Connected audio equipment is required, and replacement cables and pads beyond the supplied accessories are sold separately.
Sennheiser
Sennheiser HD 490 PRO Open-Back Studio Headphones
Open-back circumaural studio design
The Sennheiser HD 490 PRO is a wired, open-back studio headphone designed for music production and mixing. Its circumaural ear cups use 38 mm dynamic transducers and are supplied with two different sets of ear pads, one for producing and one for mixing. Both sets are washable and replaceable, allowing the fit and listening presentation to be adapted to the task. The headphones have a nominal impedance of 130 ohms and weigh 260 g without the cable. Sennheiser specifies a transmission range of 5 Hz to 36,100 Hz at a minus-10 dB measurement threshold, rather than a flat-response claim across that entire range. This standard PRO package includes a 1.8-metre cable and a 3.5 mm to 6.3 mm jack adapter. It is not the PRO Plus package, so a case, spare headband pad and additional three-metre cable are not included. The open-back construction allows sound to pass through the ear cups and is intended for an appropriate listening environment rather than noise isolation.
Meze Audio
Meze Audio 105 AER Open-Back Headphones – Black
50 mm dynamic driver
The Meze Audio 105 AER is a wired, open-back over-ear headphone built around a 50 mm dynamic driver. Its black PC-ABS earcups are not walnut, despite the inherited wording in the donor page address. The construction combines cast zinc-alloy hardware, a spring-steel headband and a soft PU-leather headband covering, with deep velour ear pads and a self-adjusting fit. Meze specifies 42-ohm impedance and a frequency range of 5 Hz to 30 kHz. A detachable wired connection keeps cable replacement practical; a compatible headphone source is still required. The open cups allow sound leakage and do not block surrounding noise like a closed design. This is the 105 AER, not the wood-cup 109 PRO, and it does not include the stands, players or amplifiers shown in some lifestyle photography.