| Content |
- Professional hi-fi stereo studio headphones
- Semi-open, circumaural design
- Self-adjusting headband for optimum fit
- Patented Varimotion speakers
- Leatherette ear pads and velvet ear pads
- Single-sided, detachable 3 m cable and additional 5 m coiled cable
The K 240 MK II is a newly updated version of AKGʼs most successful headphones with Varimotion™ technology and XXL transducers. The K 240 MK IIʼs semi-open ear cups have around-the-ear coupling to deliver solid bass, accurate mids and crystal-clear highs.
Thanks to its lower impedance and improved sensitivity, it can be used with low-output audio sources to deliver its incredible sound.
The detachable OFC cable has gold-plated plugs for optimum audio quality and exceptional ease of service.
| Type |
semi-open, dynamic headphones |
| Sensitivity |
91 dB/mW, 104 dB/V |
| Frequency range |
15 to 25,000 Hz |
| Rated impedance |
55 ohms |
| Max. input power |
200 mW |
| Earpads |
leatherette and velvet |
| Cable |
3 m single-sided and 5 m coiled cable (99,9% oxygen-free); plug-in cable on headphones (mini-XLR connector) |
| Connector |
gold plated stereo mini jack |
| Adapter |
gold plated 1/8" to 1/4" screw-on adapter |
| Net weight (without cable) |
240 g (8.5 oz.) |
| Shipping weight |
550 g (19.4 oz.) |
| Patent(s) |
Varimotion – multiple-thickness diaphragm for dynamic transducer (Patent no. AT 403.751, US 6,185,809, EP 814.637 (DE, DK, FI, FR, GB, IT, NL), JP 3.927.651); Acoustics slot resistor for dynamic transducer (Patent no. AT 408.706, US 6,639,991, ZL 01116806) |
| The SRH1840 Professional Open Back Headphones feature individually matched drivers for unparalleled acoustic performance, including smooth, extended highs and accurate bass. Developed with premium materials and precision engineering, the custom-crafted design is extremely lightweight and durable. Ideal for mastering or critical listening applications.
The included storage case, replacement set of velour ear pads, replacement cable, and threaded adapter ensure years of uninterrupted listening enjoyment.
Individually matched 40 mm neodymium drivers for unparalleled acoustic performance with smooth, extended highs and accurate bass
Open-back, circumaural design for exceptionally natural sound, wide stereo image, and increased depth of field
Lightweight construction featuring aircraft-grade aluminum alloy yoke and stainless steel grilles for enhanced durability
Steel driver frame with vented center pole piece improves linearity and eliminates internal resonance for consistent performance at all listening levels
Ergonomic dual-frame, padded headband is lightweight and fully adjustable for hours of listening comfort
Optimized for connection to external headphone amplification systems
Oxygen-free copper cable with Kevlar® reinforced jacket for superior performance and durability
Dual-exit cables with gold-plated MMCX connectors provide secure connection and detachability for easy storage or replacement
Replaceable velour ear pads with high-density, slow-recovery foam for exceptional comfort
Individually tested and serialized
Legendary Shure durability to withstand the rigors of everyday use
Type
Open-back, circumaural
Sensitivity
96 dB SPL/mW
Maximum Input Power
1000 mW
Frequency Range
10 Hz – 30 kHz
Weight
0.59 lbs (268 g)
Cable Style
Dual-exit, detachable oxygen-free copper
Cable Length
6.9 ft (2.1 m)
Plug
Gold-plated 1/8" (3.5 mm) stereo mini-jack |
Operating Principle: Open
Transmission Type: Wired
Earpad material: Velours, memory foam
Nominal Impedance Headphones: 32 ohms
Weight headphones without cable: 360 g
Headphone frequency response: 5 - 50,000 Hz
Nominal sound pressure level: 100 dB (1mW)
Sound coupling to the ear: Circumaural (around the ear)
Cable & Plug: double-sided detachable cable, 3 m length, gold-plated mini stereo jack (3.5 mm) & 1/4" adapter (6.35 mm)
|
Operating Principle: Closed
Transmission Type: Wired
Earpad material: Protein leatherette cover, memory foam filling
Nominal Impedance Headphones: 32 ohms
weight headphones without cable: 360 g
Headphone frequency response: 5 - 50,000 Hz
Nominal sound pressure level: 100 dB (1mW)
Sound coupling to the ear: Circumaural (around the ear)
Cable & Plug: 1.40 straight cable (double-sided), OCC 7N copper, textile braided, 3.5 mm jack plug with 6.35 mm jack adapter
| K 240 Studio
The Studio version of these classic hi-fi stereo headphones uses XXL speakers
with Varimotion diaphragms for higher sensitivity, a wider dynamic range, and
higher sound levels. Other features include semi-open earphones, a solid bass
range, clear highs, and excellent comfort.Also connects to portable equipment
(CD players, DAT recorders, notebook computers, etc.)
SPECIFICATIONS:
General Specifications
Headphone type: semi-open
Max. Input Power: 200 mW
Sensitivity headphones: 104 dB SPL/V
Rated Impedance: 55 Ohms
Detachable cable: yes
Cable Length: 3 m
Earpads replaceable: yes
Audio Specifications
Maximum input power: 200 mW
Audio frequency bandwidth: 15 - 25000 Hz
Dimensions
Length: 110 mm
Width: 190 mm
Height: 200 mm
Net Weight: 240 g
Audio Interface
Type: Stereo plug – 3.5mm (1/8-inch) with 6.3 mm (1/4") screw-on adapter
Gender: Male
Contacts: 3-pin
Cable
Detachable: Yes
Wearing Style
Over-ear: Yes
Application
Studio Mixing: Yes
Hi-Fi Listening: Yes
Foldable
Not foldable: Yes
Cup Style
Semi-open: Yes | DT 990 PRO
Professional headphone for studio applications, open
Features
Open, diffuse-field systems
Professional version of the oftentimes awarded DT 990
Excellent sound reproduction
Robust spring steel headband
Single-sided cable
Soft replaceable ear cushions
Gold plated stereo mini jack and 1/4" adapter
Technical Specifications
Transducer type Dynamic
Operating principle Open
Weight without cable 250 g
Frequency response 5 - 35,000 Hz.
Nominal impedance acc. to IEC 60268-7 250 Ω /System
Nominal SPL acc. to IEC 60268-7 > 96 dB
Nominal THD acc. to IEC 60268-7
Power handling capacity acc. to IEC 60268-7 100 mW
Sound coupling to the ear Circumaural
Average pressure on ear acc. to IEC 60268-7 3.5 N |
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