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





Lowther PM6, PM4, PM2


For the finest sound in the world.
Basically , Lowther design has remained constant from the start since these units function on natural sonic principles which cannot be bettered. But through research, new materials and remarkably improved engineering techniques, Lowther drive units provide fantastically good performance whatever the sound source. These units are intended for use in internal folded-horn cabinets, the designs of which make electrical cross-over systems unnecessary.
Abridged technical specifications of Lowther Drive Units PM6, PM4 AND PM2 are given overleaf.


LOWTHER PM6
Overall Diameter: 228 mm
Overall Depth: 76 mm
PDC Mounting Centres: 208 mm
Baffle hole cut-out: 190 mm
Voice Coil Diameter: 38 mm
Voice Coil Impedance: 8 ohms
Air gap width: 1 mm
Magnet Type: Feroba 2
Flux Density: 1,7 Tesla (17000 gauss)
Flux energy gap Joules x 10³: 705 MJ
Diaphragm: Twin-paper
Frequency response: 20 - 20,000 Hz
Nominal free air resonance: 39 Hz
Sensitivity dB 2 x 10 ⁵ N/M²: 94 dB
Effective Moving Mass: 0,012 kg
Suspension compliance: 1,26 x 10³ M/N
Voice coiltravel: ±1mm
Shipping weight: 3 kg


LOWTHER PM2
Overall Diameter: 228 mm
Overall Depth: 92 mm
PDC Mounting Centres: 208 mm
Baffle hole cut-out: 190 mm
Voice Coil Diameter: 39 mm
Voice Coil Impedance: 8 ohms
Air gap width: 1 mm
Magnet Type: Feroba 2
Flux Density: 2,0 Tesla (20000 gauss)
Flux energy gap Joules x 10³: 976 MJ
Diaphragm: Twin-paper
Frequency response: 20 - 20,000 Hz
Nominal free air resonance: 39 Hz
Sensitivity dB 2 x 10 ⁵ N/M²: 95,5 dB
Effective Moving Mass: 0,012 kg
Suspension compliance: 1,26 x 10³ M/N
Voice coiltravel: ±1mm
Shipping weight: 4 kg


LOWTHER PM4
Overall Diameter: 228 mm
Overall Depth: 102 mm
PDC Mounting Centres: 208 mm
Baffle hole cut-out: 190 mm
Voice Coil Diameter: 30 mm
Voice Coil Impedance: 8 ohms
Air gap width: 1 mm
Magnet Type: Feroba 2
Flux Density: 2,4 Tesla (24000 gauss)
Flux energy gap Joules x 10³: 1400 MJ
Diaphragm: Twin-paper
Frequency response: 20 - 20,000 Hz
Nominal free air resonance: 39 Hz
Sensitivity dB 2 x 10 ⁵ N/M²: 97 dB
Effective Moving Mass: 0,012 kg
Suspension compliance: 1,26 x 10³ M/N
Voice coiltravel: ±1mm
Shipping weight: 6 kg

The above units have a power handling capacity up to 60 watts when suitably housed and may be used with amplifiers up to 100 watts outputper channel.




Nessun commento:

Posta un commento