Search this site

Labels

4-channel ACCUPHASE ACOUSTIC ENERGY ADC ADCOM ADS ADVENT AIFAI AIWA AKAI AKG Alchemist ALIANTE ALLISON ALTEC LANSING AMPEX amplifier AMPLIFON ANCIENT AUDIO AR ARCAM ARISTON ARMONIA AUDIA AUDIO ACADEMY AUDIO ANALOGUE AUDIO DYNAMICS AUDIO INNOVATIONS AUDIO NOTE AUDIO RESEARCH AUDIO-TECHNICA AUDIOLAB Audiostatic AUGUSTA AVALON AVID AXIOM B-I-C Bang & Olufsen BASF BASSOCONTINUO Bell Belt-Drive BEVERIDGE BEYER-DYNAMIC BOSE BOSTON BOWERS-WILKINS BOZAK BRAUN BRIONVEGA BSR California Audio Labs CAMBRIDGE CANTON cartridge CARVER CASTLE CD Player CD Transport CEC CELESTION CEMARK Centrex CERWIN-VEGA CHARIO CHARTWELL CIZEK CLARION CONRAD-JOHNSON COPLAND CORAL CORAL ELECTRONIC CREEK CROWN CYBERNET CYRUS DAC DAHLQUIST DALI DAT DBX DECIBEL DENON DIAPASON direct-drive Ditton DOKORDER DOMA DUAL DYNACO DYNAUDIO DYNAVECTOR EISA ELAC ELECTRO-VOICE EMPIRE EMT EPI EPICURE EPOS ES Series ESB Esotec ESOTERIC ESS EUMIG FAIRCHILD FOSTEX GALACTRON GALE GARRARD GENELEC GENESIS GIUSSANI RESEARCH GOLDENOTE GOODMANS GRAAF GRUNDIG H.H. SCOTT HAFLER HARBETH HARMAN/KARDON headphones HEATHKIT HECO HIRTEL HITACHI HPM idler INDIANA LINE INFINITY italian JAMO JANSZEN JBL JEFF ROWLAND JENSEN JMLAB JVC KEF KENWOOD KLH KLIPSCH KOSS KRELL KYOCERA LAE Lafayette lathe LEAK LECTOR LENCO LESA linear LINN loudspeaker LOWTHER LUXMAN LYNGDORF MAGNEPLANAR MARANTZ MARK LEVINSON MARTEL MARTINLOGAN MARUNI MASH MAXELL MBL McIntosh McLAREN MERIDIAN MERITON MICRO SEIKI MICRO-ACOUSTICS MIRAGE MISSION MITSUBISHI MONITOR AUDIO MONRIO MORDAUNT-SHORT MUSICAL FIDELITY MYRYAD NAD NAGRA NAKAMICHI NHT NIKKO NORESCO NOVA ONKYO OPERA OPTONICA ORTOFON PANASONIC PARADIGM PATHOS PEARL PHASE LINEAR PHILIPS PICKERING pioneer POLK AUDIO Power-amplifier Pre-amplifier Pre-phono Pro-Ject PSB QUAD quadraphonic RADFORD RCF receiver Reel to Reel REK-O-KUT REVOX ROGERS ROKSAN ROTEL ROYD RUARK SACD SAE sansui SANYO SENNHEISER SHARP SHERWOOD SHURE SIARE SIGNET SME SOMA SONAB SONUS FABER SONY SOTA Soundcraftsmen SPECTRAL Spica STANTON STAX Stereo 8 STILE ITALIANO STRUSS SUGDEN SUPERSCOPE Synthesis TAC TAD TAMON TANDBERG tangential TANNOY TASCAM TDK TDL TEAC TECHNICS THE FISHER THIEL THORENS tonearm TOSHIBA TRANSCRIPTOR TRIO tuner turntable ULIX Uni-Q UNISON RESEARCH unitra UREI UTAH VANDERSTEEN VOCE DIVINA VPI WADIA WHARFEDALE XAVIAN YAMAHA ZENITH ZINGALI

What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





Visualizzazione post con etichetta AKG. Mostra tutti i post
Visualizzazione post con etichetta AKG. Mostra tutti i post

AKG K 340

 K-340
The K-340 headphone surpasses even the most elaborate electrostatics in transparency and accuracy. It has deeper and more precisely defined bass than is available from the most  expensive loudspeakers, while also being completely free from the effects of room acoustics. Every detail of the sound is clear and natural, and the acoustic image is better localized than with any other headphone available. Listening fatigue is the biggest enemy of headphones - but you can listen to thecoloration-free K-340's hour after enjoyable hour.
 A headphone's acoustical performance is academic if it is uncomfortable to wear, so every unnecessary ounce of weight was eliminated. The K-340 - despite its dual transducers and crossover networks - weighs about the same as an average open air headphone. Side pressure against the head is very low, and the large ultra-soft urethanefilled circumaural earpads may be removed for cleaning. The headphones are supported by a wide, soft headband with raised pads which not only permit air to circulate, but also provide flexibility to conform to the exact curvature of any head. Strength is supplied by a dual-bow bail above the headband. The bail terminates in a pair of self-adjusting slide fittings that automatically position the earpieces at the proper height.
 The K-340 comes with a 3 meter coiled input cable that terminates in a standard ¼" stereo phone plug. The cable's flat, side-by-side conductors are specially designed to reduce kinking. The input cable is brought directly to the left earpiece, and the headphone bail carries audio to the other earpiece, doing away with distracting "Y" cords under the chin. No detail has been overlooked in the design and every detail is revealed in the music for your enjoyment.
Specifiactions
Transducer Types:  Dynamic moving coil low-frequency system; Fixed-charge electrostat high-frequency system.
Frequency Range:  16 Hz to 25,000 Hz
Crossover:  4000 Hz , 6 dB/octave
Nominal Impedance:  400 Ω, each channel
Sensitivity:  1,6 Pa/volt
Nominal Listening Level Requirements:  0,63 V (1 mW) for 94 dB SPL (approx. 1 Pa)
"IHF Sensitivity"  rating 5,0 V (63 mW) for 112 dB SPL (approx. 8 Pa)
Sound Pressure level for less than or equal to 1,0 THD:  104 dB (200 to 2,000 Hz)
Maximum Continuous Input (per channel):  9 V (200 mW) approx. 117 dB SPL
Cable:  3 meter (9,8 feet) 4 conductor cable with 3-conductor ¼" phone plug.
Weight:  385 grams (13,5 oz ) less cable

Contact Force:  Approx. 3 newtons (10,5 oz)

AKG K 280 Parabolic

 AKG sets a new standard in headphones technology.  An  "acoustic lens"  provides a new level of sound quality. Each channel uses two transducers whose diaphragms form tangent planes to a paraboloid as shown.
 This arrangement Focuses the sound waves at the entrance of the ear canal just like satellite dishes or spotlights focus radio waves or light.
  CAD methods have been employed to get the best out of the interference patterns created by more than one sound source radiating the same signal. The transient response of the K 280 parabolic has  been optimized using the Wigner distribution  (a mathematical model of sound) so high levels are no problem. This open-air design, being generously ventilated, conveys a sense of space and clarity of sound.
Specifications
Type:  Dynamic
Rated SPL:  94 dB
Power Handling Capability:  200 mW
Frequency Range:  20 - 20,000 Hz
Rated Impedance:  75 Ω/system
Earphone Pressure:  3. N (approx. 350 g)
Weight:  250 g (8,8 oz) without cable
Cable:  Single cord length; 3 m

Connector:  ¼" stereo jack plug