Package Includes:

• (1) AKG K240 Studio Over-Ear Semi-Open Recording Mixing Monitoring Headphones
  
• (1) Rockville TubeHead Tube Headphone Amplifier Amp / 6K4 Tubes / 16-300 Ohms/180mW
  

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Includes:

• 1 x K240 Studio Headphones
• 1 x 3 m cable with stereo 3.5 mm (1/8") connector
• 1 x 6.3 mm (1/4") screw-on adapter

Description:

Classic cans
The AKG K240 Studio over-ear, semi-open headphones are designed for professional applications such as mixing, mastering and playback. Their advanced 30 mm XXL transducers with patented Varimotion diaphragms deliver a wide dynamic range, increased sensitivity and high sound levels, while their semi-open design provides a solid bass range and extremely clear highs.

With impressive accuracy, musicians, producers and engineers rely on the AKG K240 Studio to clearly hear mixing details, which has made these headphones a standard in recording settings. In addition to great sound quality, the headphones are extremely durable and comfortable. Not only built to withstand the demands of countless hours in the studio, their self-adjusting headband provides an ideal fit and their over-ear pads nicely envelop the ears.

The AKG K240 Studio headphones also feature a professional mini XLR connector and come with a 3 meter cable and convertible jack plug for connecting portable equipment easily. Altogether, from performance and ease of use to comfort and reliability, the AKG K240 Studio is a powerful tool for production environments.

Specifications:

General

• Headphone type: semi-open
• Max. Input Power: 200 mW
• Sensitivity headphones: 104 dB SPL/V
• Rated Impedance: 55 Ohms
• Detachable cable
• Cable Length: 3 m
• Earpads replaceable

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

Wearing Style

• Over-ear

Application

• Studio Mixing
• Hi-Fi Listening

Foldable

• Not foldable

Cup Style

• Semi-open

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Video of TubeHead:

Includes:

• 1 x Tube headphone amplifier
• 1 x 12V 1A US Power Supply
• Manual and warranty card

Description:

The Rockville TubeHead headphone amplifier is one of the best sounding headphone amps available on the market. We use 6K4 tubes that are extremely high quality. We engineered this item to sound amazing with these tubes. The sound is so clear and warm that you will never want to take your headphones off.

The power output is 180 mW @ 32 ohm at 0.03% THD. The Tubehead by Rockville supports headphones from 16 ohms all the way up to 600 ohms making this headphone amp universal.

If you want the best sounding tube headphone amp on the market then make sure to check out the TubeHead by Rockville.

(Please note we compared our model to some other ones on the market and there are some brands who were writing crazy specs like 2,000 mW but their amp was not even nearly as powerful or warm sounding as ours). If you want the best product from an honest company this is it.

Features:

• Rockville TubeHead Tube Headphone Amplifier
• Tube: 6K4 (These are great quality and engineered to sound best in this amp)
• 3.5mm audio line input
• RCA line input
• 6.35mm headphone output
• Perfect for 16 ohm to 600 ohm headphones
• Power Output: 100mW@16Ω, 180mW@32Ω， 112mW@64Ω， 64mW@120Ω， 27mW@300Ω
• The above are true power ratings at 0.03% THD. Please note some other brands put ratings like 2000mw but that would be at 10 % THD and at a higher voltage which is not a normal listening condition
• THD: 0.03%
• S/N Ratio: 106dB
• Volume control knob
• Toggle Switch on/off
• Selectable Line 1 and Line 2 input selection switch
• Power light indicator
• Gain: 1.89 dB with 0.775Vrms input @ 32ohm impedance
• Crosstalk: 70 dB
• DC Power Supply: 12V 1A
• Universal 110/220 power supply for worldwide use
• Unit Weight: 1.02lbs
• Unit Size: 3.94 x 3.74 x 0.9 inch ( L x W x H)

Full List of Replacement Tubes:

• 6J1
• 6AK5
• 6BC5
• 403A/B
• 5654
• EF95
• CV850
• 6J2
• 6AS6
• CV2522
• CV4011
• 6J3
• EF94
• CV848
• 6BC6
• 6AG5
• 6J4
• 6136
• 6BX6
• 6AC7
• 6AU6
• 6J5
• CV2521
• 6F36
• 6AH6
• 6AN5
• 6K4
• EF93
• 6K5
• 6K4П
• 6BA6
• 6DA6
• 5749

Owner's Manual​​