
ALTIAT has launched the Cal.1H—Electrodynamic Headphone—in India. It features a PET (Polyethylene Terephthalate) diaphragm and a 50mm electrodynamic driver.
Altiat Cal.1H—Electrodynamic Headphone: Features
The ALTIAT Cal.1H’s 50mm electrodynamic driver offers great sound. Technically, CAL.1H has the low-frequency capabilities of dynamic driver headphones. Cal.1H’s bass extension adds depth and rumble to the sub-bass. The ALTIAT Cal.1H has quality bass, not quantity. excellent midrange tune on Cal.1H. It has clear core tones and a strong upper midrange presence. Fantastic tone, depth, and layering. Both male and female vocals are crisp and have body.
The Cal.1H treble is good. It’s not warm, but it’s not bright and comfortable for most listeners. The Cal.1H extends admirably into the upper treble with good holographic and airy portrayal, reproducing all the harmonics and overtones there. Cal.1H has a large, open sound. Its soundstage width is comparable to open-back headphones and can convey a sense of distance and fine instrument separation. Cal.1H layering capabilities allow you to enjoy sonic tranquility.
CAL.1H is mostly unibody aluminium. headband is made of aluminium and spring steel with Delrin buffers to prevent metal-on-metal fatigue. Nearly all Cal.1H parts are CNC-turned and CNC-milled. Cal.1H comes in gunmetal grey, aluminium silver, anodized black, and solid ash. You may now choose the appropriate ALTIAT colour. Each colour has been coated. Aluminum housings are gunmetal grey. Aluminum silver is sandblasted onto raw aluminium housings. Solid ash is machined from a single piece of ashwood while retaining Cal. 1H’s 3D features. The ALTIAT Cal.1H includes velour earpads and a 6.35mm unbalanced plug.

ALTIAT Cal.1H—Electrodynamic Headphone: Quick Specs
- Design: Open-Back
- Build: Metal
- Wearing Style: Over-Ear
- Coupling: Circumaural
- Upholstery: Velour
- Driver: 50mm Electrodynamic Drivers
- Impedance: 28 Ohms
- Sensitivtiy: 105.36dB SPL/MW @1 KHz (Approx Avg ~104dB SPL/MW @1 KHz)
- Driver Matching: Min ~0.1dB To Max ~0.4dB Avg Throughout The Frequency Response Range
- Termination: 6.35mm Unbalanced
- Mircrophone: No
- Other Features: Balanced Sound Signature, Ideal for Audiophiles, Ideal for Indoor Use, Replaceable Cables
- Colors: Gunmetal Grey, Aluminum Silver, Anodized Black, and Solid Ash
- Warranty: 18 Months Warranty
Pricing and Avaialability
The ALTIAT Cal.1H is priced at 29,990 and is available from Headphone Zone.