Grado Signature S150 Headphones

Grado Signature S150 Open-Air Headphones

The Grado Signature S150 is an open-air, dynamic headphone and the newest entry point to Grado's Signature Line. It brings Grado's latest driver technology into a lightweight 220-gram design.

A new 44mm S driver, a single-piece housing and a detachable Signature Bronze cable set it apart. Grado designs and hand-assembles it in Brooklyn, New York.

A New 44mm S Driver

Grado developed the S150's 44mm S driver specifically for this size. Its paper-composite diaphragm is based on the larger 52mm S drivers in the Signature HP100 SE and S950. Grado rates driver matching at 0.05dB.

Single-Piece Housing

The acoustic chamber is one molded piece of engineered ABS polymer in a matte-black finish. It keeps the headphone light and consistent while updating the classic Grado look.

Detachable Signature Bronze Cable and F Cushions

The Signature Bronze cable is lighter, softer and more flexible, and it detaches at dual 3.5mm connections on the earcups. The supplied F cushions have internal acoustic slits and are part of the S150's tuning. The S150 also accepts Grado's complete range of cushions.

How the S150 Fits Your System

The S150 is a wired headphone with a nominal impedance of 38 ohms and sensitivity of 104dB at 1mW. The included cable ends in a 3.5mm plug and comes with a 6.3mm adapter, so it fits either size of headphone jack.

What it will not do: it is wired only, with no Bluetooth or wireless connection. As an open-air design, it lets sound in and out, so it does not isolate you from your surroundings.

Who Is the Signature S150 Best For?

• Listeners stepping into Grado's Signature Line — Signature driver technology and build in Grado's newest Signature model.
• Long listening sessions — At 220 grams, with a padded leather headband and adjustable tension.
• Listeners who like to fine-tune — Compatible with Grado's full range of cushions for personalizing sound and fit.
• Owners of several sources — 3.5mm plug plus 6.3mm adapter connects to portable and home gear.
• Not for commuting or shared spaces — The open-air design lets sound out and outside noise in.

How Does It Connect to Your System?

• Plug the Signature Bronze cable into the 3.5mm sockets on both earcups.
• Connect the 3.5mm plug to a portable player, DAC or headphone amplifier.
• For a full-size 6.3mm headphone jack, add the supplied 6.3mm adapter.
• Adjust the stainless-steel height rods and bend the headband's inner steel band for a comfortable fit.

Pairs Well With

Get the most from your S150 with these categories:

• Headphone Amplifiers
• Headphone Cables
• Headphone Stands
• More from Grado

Frequently Asked Questions

Is the cable replaceable?

Yes. The Signature Bronze cable detaches at dual 3.5mm connections on the earcups.

Can I use other Grado cushions?

Yes. The S150 ships with F cushions and is compatible with Grado's complete range of headphone cushions.

How does the S150's driver relate to the bigger Signature models?

Its 44mm S driver uses a paper-composite diaphragm based on the 52mm S drivers in the HP100 SE and S950. Grado developed it specifically for the smaller 44mm size.

Where is the S150 made?

Grado designs and hand-assembles the S150 in Brooklyn, New York, where the company has built audio products since 1953.

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