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EF-5 High Performance Headphone Amplifier with Tube Output for Hifi Application (Black)
HE-300 Over-Ear Headphones
One of the best values in full-size headphones, the HE-300 utilizes dynamic drivers and low impedance so they are easy to drive on a portable device (i.e. iPod or iPhone) but can also be used in a high quality hifi system. The HE-300 combines the advantages of a traditional dynamic design such as 93dB sensitivity and high output yet offers a familiar sonic signature of HiFiMANs top-of-the-line reference models. HE-300 headphones are high efficiency and low impedance full size headphones. It is very easy to drive so that you can use HE-300 on any portable device such as iPhone and iPod.
Driver: 50mm diameter Dynamic drivers
Impedance: 50 Ohms
Sensitivity: 93 dB @ 1KHZ, 1mW
Rated Power: 30 mW
Freq: 15Hz to 22 KHZ
Weight: about 270 g
Silver headphone cable (3 meters or 10 feet)
Velour earpad one pair
1/4"(6.35mm) headphone adapter
EF-5 Headphone Amplifier
Hand built with tube output, HiFiMANs state-of-the-art headphone amplifier provides audiophile quality, amplified signal for high performance headphones and critical listeners. Wide bandwidth, low distortion and s/n greater than 95db, make the EF5 the clear choice for discriminating music lovers. Compatible with wide range of headphones for almost any hifi application.
Tube: Tianjin full music tube
Frequency Response: 20-30K Hz
THD+N: less than 0.2%
S/N: more than 95dB
Input impedance: 50K Ohm
Output impedance: 22K Ohm headphones
Output signal strength: up to 15 Volts at 32 Ohm
Output: 1/4 headphone jack
Dimension: 110mm(W) x 50mm(H) x 270mm(D), or 4.33inch(W) x 1.97inch (H) x 10.63inch (D)
Weight: 6lb (include packing)
Accessories: 12AU7 tube, DY-1 power supply, compatible from 110v to 240v
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