Sennheiser HD 660S2 Wired Over-Ear Headphones - AX Store Kuwait

In stock

Sennheiser HD 660S2 – 300 Ohm Open-Back Audiophile Headphones

Brand

Sennheiser

CategoryHeadphones

Sennheiser HD 660S2 – 300 Ohm Open-Back Audiophile Headphones

Extended Sub-Bass
Revised 300-Ohm Transducer
Open-Back Presentation
Velour Contact Surfaces
260g Headphone Weight
Included 6.35mm and 4.4mm Cables
3.5mm Adapter Included
Made in Ireland with Replaceable Parts

In stock

189.000 د.ك

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179.900 د.ك Save 9.100 د.ك (5%)

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Overview

Specs

AX STORE KUWAIT / AUDIO

Sennheiser HD 660S2 – 300 Ohm Open-Back Audiophile Headphones

The Sennheiser HD 660S2 is an open-back headphone for settling into a recording, with a warm presentation and extended low-frequency response. Its revised 300-ohm transducer design builds on the HD 600 family while giving the S2 its own identity.

Choose it for a quiet listening space and pair it with a suitable headphone output. Two supplied cable types make it straightforward to plan either single-ended or balanced listening without relying on an unsuitable plug adapter.

Explore the Features

FEATURE 01

Extended Sub-Bass

The S2 revision develops the lower end of the HD 660S design while retaining detail through the rest of the range. Listen to familiar acoustic bass, piano and electronic tracks to judge how the extra low-frequency extension fits your preferences.

Sennheiser HD 660S2 transducer and open-back construction

FEATURE 02

Revised 300-Ohm Transducer

A revised voice coil, more compliant surround and optimised airflow are part of the S2 design. The 300-ohm load makes source matching worthwhile; choose an amplifier for suitable output capability, not because higher volume is the goal.

FEATURE 03

Open-Back Presentation

The open earcups suit focused home listening without sealing you off from the room. They allow sound leakage, so they are best used where nearby people or microphones will not be disturbed.

Sennheiser HD 660S2 over-ear fit and velour cushions

FEATURE 04

Velour Contact Surfaces

Soft velour pads and an ergonomic padded headband support comfortable listening. Position the cups evenly and take breaks during long sessions rather than using comfort as a reason to raise playback levels.

FEATURE 05

260g Headphone Weight

The listed 260g weight keeps the headphone itself manageable for a desk or listening chair. Cable routing still matters: leave slack so the lead does not pull against the fit.

FEATURE 06

Included 6.35mm and 4.4mm Cables

Two 1.8m cables let you select a single-ended 6.35mm output or a compatible balanced 4.4mm output. Use the correct complete cable for the output you choose.

FEATURE 07

3.5mm Adapter Included

The supplied 6.35mm-to-3.5mm adapter supports a conventional stereo headphone socket. Connector fit does not guarantee sufficient amplifier headroom into 300Ω.

FEATURE 08

Made in Ireland with Replaceable Parts

The HD 660S2 is made in Ireland. Detachable cables and available replacement ear cushions support ongoing maintenance of a headphone intended for repeated listening.

Plan the Headphone and Amplifier Together

The FiiO K7 and FiiO K11 provide desktop listening options with both 4.4mm balanced and 6.35mm single-ended sockets. Compare their output specifications for a 300Ω load. For a different studio workflow, the DT 900 PRO X offers a lower-impedance open-back alternative.

Frequently Asked Questions

Is this HD 660S or HD 660S2?

This is HD 660S2, manufacturer article 700240, with a 300Ω impedance and revised low-frequency response.

Does it isolate outside noise?

No. The open-back design allows sound in and out and is best suited to a quiet listening environment.

Which cables are included?

The package includes 1.8m cables with 6.35mm single-ended and 4.4mm balanced plugs, a 6.35mm-to-3.5mm adapter and a carry pouch.

Can I connect to a balanced amplifier?

Yes, using the supplied 4.4mm balanced cable and a compatible balanced headphone output. Do not adapt the single-ended cable into a balanced output.

Does HD 660S2 have Bluetooth or a microphone?

No. It is a wired headphone without a built-in microphone.

Should I use a headphone amplifier?

A suitable amplifier or DAC/amp is useful when your existing output cannot provide the listening headroom you need into 300Ω.

Why Buy from AX Store Kuwait?

Choose the exact model and connection that suit your setup at AX Store Kuwait. The specifications, setup guidance and related accessories on this page help you build a practical system around the product.

Technical Specifications

General
Brand	Sennheiser
Model	HD 660S2
Type	Wired over-ear audiophile headphones
Acoustic Design	Open-back
Color	Black
Audio
Transducer	Dynamic, 38mm
Impedance	300 ohms
Frequency Response	8–41,500 Hz
Sensitivity	104 dB SPL at 1kHz / 1Vrms
THD	Less than 0.04% at 1kHz / 100 dB
Connection and Construction
Single-Ended Cable	6.3mm jack plug, 1.8m
Balanced Cable	4.4mm balanced plug, 1.8m
Adapter	6.3mm to 3.5mm
Cable Attachment	Detachable
Earpads	Velour
Weight	260g
Country of Manufacture	Ireland
Built-in Microphone	No
In the Box
Included Items	HD 660S2 headphones; 1.8m cable with 6.3mm plug; 1.8m cable with 4.4mm balanced plug; 6.3mm-to-3.5mm adapter; Carry pouch