Pre-order Grado · Headphones
Grado Signature S150 Open-Back Headphones
The entry point to Grado’s Signature Line, with detachable cables.
£295.00
Pre-order
Coming soon. Pre-order now to reserve yours and we'll be in touch as soon as it arrives.
New for 2026: a 44 mm S driver with a paper-composite diaphragm, a matte-black one-piece housing, a padded leather headband and detachable Signature Bronze cables. It weighs 220 g.
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Delivery, collection or fitting. Free UK delivery unless stated, collection from Lymington, or we install and set it up anywhere across the New Forest and the south coast.
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Sold and looked after by New Forest Technology Services Ltd in Lymington. Secure checkout. Terms of sale · Delivery & returns.
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Not sure it's the right one? Call 01425 705035 and talk to an installer, or ask on WhatsApp.
Best for: A first step into Signature-level headphones with detachable cables.
Goes well with
- Grado Signature S550 Open-Back Headphones Brazilian walnut Signature headphones with a warm, relaxed sound. £995.00
- Grado SR325 Classic Open-Back Headphones Machined-aluminium Grado headphones with a fast, articulate sound. £349.00
- Grado RS1 Classic Open-Back Headphones A tri-wood Grado with a 50 mm driver and an expressive midrange. £749.00
About the Grado Signature S150 Open-Back Headphones
The Signature Line is Grado’s high-end range. Every model has a detachable cable and an updated Signature headband, and the line grew out of the HP100 SE. The S150 is the most affordable way into it.
The 44 mm S driver was developed for this model and draws on the paper-composite diaphragm used in the larger 52 mm drivers in the HP100 SE and S950. The housing is a single moulded piece. The detachable cable connects with a 3.5 mm plug at each ear cup and ends in a 3.5 mm plug with a 6.3 mm adapter, and F cushions come fitted.
It is an open-back design, so it suits listening at home rather than in noisy places. Other cable lengths and balanced terminations exist for the Signature Line, so ask us if you need one.
Genuine UK stock from an authorised Grado dealer. Not sure which pair suits your amplifier or your music? Ask us and we will help you choose. See our audio and video work.
Key features
- New 44 mm S driver with a paper-composite diaphragm
- Detachable Signature Bronze cable with 3.5 mm connections at each cup
- 3.5 mm plug with a 6.3 mm adapter
- Light at 220 g, with a padded leather headband
- One-piece matte-black housing
- F cushions, compatible with Grado’s full cushion range
- Open-back design for a spacious sound
Specifications
- Type
- Open-back dynamic headphones
- Driver
- 44 mm S dynamic, paper-composite diaphragm
- Frequency response
- 16 Hz to 34 kHz
- Impedance
- 38 ohms
- Sensitivity
- 104 dB (SPL at 1 mW)
- Distortion
- Under 0.3% at 100 dB
- Weight
- 220 g
- Cable
- Signature Bronze, detachable, about 1.8 m (6 ft)
- Connections
- Dual 3.5 mm at the headphones; 3.5 mm plug with 6.3 mm adapter at the source
- Cushions
- F cushions
Specifications from Grado. They can change between production runs.
Questions about the Grado Signature S150 Open-Back Headphones
Is the cable detachable?
Yes. It connects to each ear cup with a 3.5 mm plug, so it can be replaced or swapped.
Does it come with a 6.3 mm adapter?
Yes. The cable ends in a 3.5 mm plug and Grado supplies a 6.3 mm adapter with it.
Can I get a balanced or longer cable?
Grado makes other lengths and balanced terminations for the Signature Line. Ask us and we will check what suits the S150 and your amplifier.
Got a question we haven't answered? Ask us and we'll get back to you.
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