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Pair of in-ear monitors with silver-plated detachable cable

Bolton Technical

Bolton Technical CCA Hydro 2DD+8BA Hybrid IEM 4 Switches Silver Cable

SKU CH-4YDH-G8J5Q

Hybrid in-ear monitors with two dynamic and eight balanced-armature drivers, four physical tuning switches for bass and treble adjustment.

  • Hybrid 2DD+8BA drivers deliver deep bass with clear mids and highs
  • Four physical switches adjust bass and treble by +1dB or +2dB without an app
  • DLP 3D-printed acoustic chamber reduces resonance and phase distortion
  • Detachable silver-plated cable with gold-plated 2-pin connectors for clean signal and easy upgrades
  • Ergonomic design fits securely for musicians, engineers and audiophiles

Hybrid driver IEM for critical listening

The Bolton Technical CCA Hydro combines two dynamic drivers with eight balanced armatures in a hybrid configuration. A pro-level crossover network integrates the drivers to produce a wide, detailed soundstage suited for musicians, audio engineers, DJs, drummers and serious audiophiles who require accurate monitoring.

Four physical tuning switches for tonal control

Four onboard switches adjust the frequency response by +1 dB or +2 dB for bass or treble without any software. The DLP 3D-printed acoustic chamber with internal filters and airflow channels reduces resonance and phase distortion, giving consistent results across music genres and spoken-word content.

Detachable silver-plated cable with 2-pin connectors

A high-purity silver-plated cable is included for low-loss signal transmission. Gold-plated 2-pin connectors provide a secure, durable interface that accepts aftermarket cables or a Bluetooth adapter for wireless use, extending the product’s versatility beyond the supplied cable.

How it compares

Measured against everything we stock in Earbuds, Earphones & Mini Speakers, at today’s prices. Recalculated every night.

Price $173.99
Pricier than about 90% of the 231 comparable items (median $40.99).

Specifications

No published specifications for this item yet.

Questions about this item

Will the gold-plated 2-pin connectors on the detachable cable work with the aftermarket cables I already own?

The cable uses gold-plated 2-pin connectors designed for wide compatibility with standard IEM cables, allowing you to connect existing aftermarket cables or upgrade to new ones directly.

How can I confirm the four tuning switches are changing the sound as intended after I set them up?

Toggle each switch and listen for the described shifts: bass increases of +1 dB or +2 dB and treble increases of +1 dB or +2 dB; the changes are audible immediately without any app or software.

What accessories come in the box and what must I purchase separately?

The package includes the hybrid IEM earpieces with 2DD+8BA drivers and a detachable silver-plated cable with gold-plated 2-pin connectors; ear tips, a Bluetooth adapter or any alternative cables are not included and must be bought separately.

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