Page 10 Advertisements Column 3

Press, 14 June 1978, Page 10

IMPORTANCE OF NATIONAL Fisher and Paykel in improving your present John Lane also has: conjunction with the system, John Lane has world's foremost manu- the National for you. National Colour TV facturer of Hi-Fi and At John Lane ' s you get Atonal vSium sound gear — National, complete service Cleaners have produced a series y OU Reserve when you National Razors of sound systems to jjuy National. National Calculator* suit everybody's needs. ——— * John Lane can provide Whether you are the finance, trade-in your man who has nothing, old set and look after or just adding or your service problems. YOUR FISHER AND PAYKEL DEALER IS AT MgQBOL 155 COLOMBO ST, WITOgj BECKENHAM, PHONE 327-687. J a mt

Our amplifiers DO sound different! Transient Intermodulation Distortion (TID) has been eliminated completely. Other distortion products are far below audible levels. On paper our speci fications are among the best in the world. But the amplifiers sound different — starlingly clear. That is the absence of TID. Some people have become accustomed to TID. Its absence comes as quite a shock. Like the shock a musician might get if his instrument suddenly started producing it. •— Roberts— —

This engineering achievement will only be bought by the Fastidious buyer ... 800 satisfied owner listeners is proof enough! For a Free Brochure, write to:— Electronics Ltd F<( j|| ( v 14,Clarence st,Chch2.

amplifier B&WDM2A MUI IL $595.00 SPEAKERS $ll 25pr * - v. GENERAL DESCRIPTION x-----^-W ' "A .^WO|Hg|K x x 'Wk 4 k 1 The DNI2A ■ e three udt monitor Loud-speaker ..4 * ' ” sSA v, x, M ’ system comprising highly developed Bextrena & . coned Bass/Mttkange unit, rear loaded with the ; , • ' ' ..., B Lt W etfith wave acoustic (U.K. patent < appfcm»n " u ' nten 31793/71 b 5257.72) typn 1 { I HF 1300 Ml I! k>w« htf, frequency unit and « .J fIH W BL A A iTlßfl 19 mm ptestc domed upper htft frapjency <«1. IBWRB Thad order Butterworth Mere ere used and ’ WT.Jiqflßjw BOBIE T '-■ •'W.- | **”" ” hrt * B i DETAILED SPECIFICATION W? %J® 'JmMB i Drive units | < Wfll M ’ » .tßNftjjßr DW 200. Baw/Makange unit comers of 152 mm. RB 7/ .jcMS %aMK£SjjßiaF% h® loo of cn,ia# Y contoured Senrem. • £ With mid-frequency dome, tfcven from e 385 jBBk 60-60 stereo 1 INTRODUCTION aaad to anaure long term stahitty at high The philosophy behind the design of you: RAIT 60-60 stereo amplifier operatmg tampereti»es_A long throw voce coi was to produce on amplifier for musical reproduction of the highest with rubber rol surround ensure hgh amplitude . . order yet at a realistic price within the average enthusiast s grasp. Up low tfctortion operation and a massive magnet to date solid state techniques ore used to achieve this with remarkably assembly weighsig »me 4'sfcs (21kg)give ffe.,-..; aood results tn terms of low apparent residual noise, clarity and excellent damping and frensient reaponse Pressue smoothness of sound. *• ch^ g , A ' '«« « assorted; «m» ’ r “’» d *"d> «xd«al ' SPECIFICATIONS damping compounds and freuqent quality response POWER AMPLIFIER curves and distortion measurements are taken on Power output 60 watts channel (average power) in 8 ohms load at Brud and Kjaer equipment. onset of clipping. , , , , HFI3OO Mk II Upper mid-frequency unit as used in the BBC monitor type I*3/8. offering wide Power bandwidth TOHz to 175KHz (8 ohms load—3dß points) ot 30 (fepersion from a vituai port source. watts onizii High Frequency Unit A 19 mm low diaphragm maxi pktstc dome type unit extendmg the Distortion less than 0.1% ot all powers ot all frequencies 20Hz to 20KHz response to above 25 KHz up to 30 watts in 8 ohms Crossover and Fitter Network Third order Butterworth filters and band stop section folowing the first low pass section to further kneariso the mid-frequency reaponsa. Stop band Typical Figures: Frequency Power level Distortion attenuation of 18 db per octave for al units. Al components of chaa tolerance wd IF mductors 1 KHz 30W 0.02 % are of low tfctortion Ferrite contraction to reduce winding resistance and enue maximum 60-60 Control 20KHz 30 W 0.05% damping to voice col Amplifier 20Hz 30W 0.05% CABINETS: Specifications Input Level S/N Ratio (wideband M cabinets are made from 20mm high density particle board and each pair has matched unweighted) selected walnut veneer with baiancaig interior veneer. Al comers are mitred, tongued Magnetic Phono 4.SmVRIAA within Tdß 60dB end while the back is rebated and gteed at position. Cabinet framework ia rebated Ceromic Phono 600 mV Flat 60dB end glued in place to provide airtight joints. Hand staining and polishing provide a long Tope 150 mV Flat 60dB hard wearing chip resistant surface. Aux. 1 and 2 150 mV Flat 60dB 'in ■ I hn?■ Mi■ «■ I