B&W Bowers & Wilkins DM2, 1973, made in England

Link: hifiengine | audio-heritage

Book shelf type monitor speaker system. 
DW 200 which is a 20 cm cone type Woofer using a BX (Bextrene Cone) cone is carried in low-pass. 

This unit was designed focusing on the frequency characteristics and distortion characteristics of a particularly important midrange, and in addition to the effective diameter 150 mm BX cone with a center dome of 54 mm diameter, aluminum bobbin that can withstand large inputs and special resin processing 38mm voice coil, high compliance rubber edge is used. As a result, the linearity and resistance to input characteristics of the mid range are improved. 

HF 1300 which is 3.5 cm dome type tweeter which is also used for BBC monitor speaker is carried in high region. 

The 1.8 cm dome type super tweeter is carried in the super high region. 

The network section has adopted a blocking characteristic of 18 dB / oct which applied phase correction and impedance correction to the high pass part of the high frequency range.

B & W's proprietary ALL system (Acoustic Line Load System) is adopted as an enclosure, lowering the low-pass characteristics and lowering the total harmonic distortion and Doppler distortion as compared with the conventional load method. 
ALL method is a kind of backload type, but unlike conventional backload type and maze type, it is very short reverse horn type. In addition, three different types of sound absorbing materials are packed in the interior of the horn. This horn length is designed to 1/8 of the wavelength, suppressing corn excursion (cone fluxing phenomenon) of 30 Hz to 60 Hz, and using the frequency characteristic of this band. In addition, unnecessary mid-range energy on the back of the DW 200 is attenuated by three kinds of sound absorbing materials, which together with an enclosure using a high-density chip board minimizes coloring and unnecessary sound in the mid-low range I will.

method 3 way · 3 speaker · ALL method · book shelf type
  • For low-pass: 20 cm cone type (DW 200) 
  • For high regions: 3.5 cm cone type (HF 1300) 
  • For super high region: 1.8 cm dome shape

Frequency characteristic 35 Hz to 25 kHz
Maximum input 60 W
Impedance 8 Ω
Output sound pressure level 90 dB (SPL)
Crossover frequency 2.5 kHz, 12 kHz
Network attenuation 18 dB / oct.
External dimensions Width 352 × height 644 × depth 345 mm
weight 23 kg
Optional Pedestal (leg) STA / 2 (price unknown)

Unit                                DW 200               HF 1300             Super Twitter
Model                        BX cone type       Plastic cone     Plastic dome
Nominal diameter        200 mm               35 mm             18 mm
Cone diameter        150 mm               -                              -
Edge                        Rubber / Roll       -                              -
Voice coil diameter.      38 mm              21 mm             18 mm
VC Impedance        8 Ω                      16 Ω                     8 Ω

самый первый выпуск, модель DM2 без других индексов типа "мк2" и "a"

Linn KAN MK2 (mk II) [bi-wiring], 198?, made in Scotland

Metz 4600S, 1974-1982, made in Germany

Link: radiomuseum

Country: Germany
Year: 1974–1982 Category: Loudspeaker, headphone or earphone
Wave bands - without
Power type and voltage No Power needed
Loudspeaker 2 Loudspeakers
Power out
Model: Lautsprecherbox 4600S - Metz Transformatoren- und
Material Wooden case
Shape Book-shelf unit.
Dimensions (WHD) 230 x 470 x 200 mm / 9.1 x 18.5 x 7.9 inch
  • Lautsprecherbox 4600 mit einer Musikbelastbarkeit von 40 Watt
  • Übertragungsbereich 45-20000 Hz
  • mpedanz 4 Ohm
Net weight (2.2 lb = 1 kg) 5.5 kg / 12 lb 1.8 oz (12.115 lb)
Mentioned in Original Metz Service Unterlagen


I.Q. Sinfonia OPUS 1, 198?, made in Germany

The equipment comes from Westra (TT / HT) and Nokia (MT).

Rated power 80 watts
Music Performance 120 Wall
Frequency response 38-22000 Hz
Suitable for amplifiers of 4-8 ohm

Dimensions: (HxWxD) 450 x 270 x 210 mm
Weight: 7 kg/pcs


Bas 8’’

На одном из ресурсов Sinfonia позиционировалась как I.Q. брэнд, так ли это?

Siemens RL 173, 197?, made in Germany


Country: Germany
Manufacturer / Brand: Siemens; D (S.& Halske / S. Electrogeräte)

Year: 197? Type: Loudspeaker, headphone or earphone 
Wave bands - without 
Power type and voltage No Power needed 
Loudspeaker 4 Loudspeakers 
Power out 

Material Wooden case
Dimensions (WHD) 550 x 550 x 200 mm
Net weight (2.2 lb = 1 kg)
Price in first year of sale ?
Source of data ?

JBL Сontrol 1G Two-Way Professional Compact Loudspeaker System, made in Japan

Отличие 1G от 1С в экранированном магните НЧ динамиков.
Подвесы поменяны прошлым владельцем, что является большим плюсом для данной модели.

ниже приведены данные с оригинального каталога JBL по модели 1G hifi-forum

Control 1G Universe/1X Specifications: 
Drivers bass/midrange: 5 1/4" Video shielded)
Drivers tweeter: 1/2" Titanium dome Video shielded)
Frequency response: 70 Hz - 20 kHz 
Max. Recommended. Amplifier power 75 watts
Impedance 4 ohms
Transition frequency 6 khz
Sound pressure in 1 m / 1 watt 90 dB
Woofer speaker 135 mm
Tweeter dome 19 mm polycarbonate
Dimensions W x H x D: 155 x 230 x 140 mm

замена подвесов своими силами youtube
взгляд изнутри rockgrotto.proboards

Telefunken TL 700, 1975, made in West-Germany

Link: radiomuseum | telefunken.pytalhost

Country:  Germany
Year: 1975 ?? Category: Loudspeaker, headphone or earphone
Wave bands - without
Power type and voltage No Power needed
Loudspeaker 3 Loudspeakers
Power out
Model: Lautsprecher Box TL 700 - Telefunken Deutschland TFK,
Material Wooden case
Shape Book-shelf unit.
Dimensions (WHD) 330 x 465 x 235 mm / 13 x 18.3 x 9.3 inch
  • Telefunken Lautsprecher Box TL 700
  • Tiefton 204 mm
  • Mittelton 110 mm
  • Hochton 42 mm
  • Nennbelastbarkeit 45 Watt
  • Musikbelastbarkeit 60 Watt
  • Übertragungsbereich 30 - 20000 Hz
  • Nennscheinwiderstand 4 Ohm

Mentioned in Original Telefunken Service Unterlagen

Wega 3102 (Nuss/Teak) Tube amplifier radio, 1965-67, made in Germany

Link: radiomuseum Nuss/Teak | radiomuseum Palisander/Schleiflack | wega.pytalhost | elektrotanya

Country:  Germany
alternative name  
Württemb. Radio-Ges.mbH; Stuttgart
Year: 1965–1967 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: ECC85 ECH81 EAF801 EMM803
Semiconductors (the count is only for transistors) 22: AC151r AF126 AC127 AC152 AD150 AF138 AC122 AA119 AA132 AA113 BA100
Reception principle Super-Heterodyne (Super in general)
Tuned circuits 6 AM circuit(s)     10 FM circuit(s)
Wave bands Broadcast, Long Wave, Short Wave plus FM or UHF.
Power type and voltage Alternating Current supply (AC) / 110; 130; 155; 220; 240 Volt
Loudspeaker - This model requires external speaker(s).
Power out
Model: 3102 [Nuss/Teak] - Wega, Württembergische Radio-
Material Wooden case
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 500 x 215 x 350 mm / 19.7 x 8.5 x 13.8 inch
  • Halbleiter teilweise mehrfach vorhanden.
  • Vollstereo, NF-Verstärker mit 2 Gegentakt-Endstufen je 12 W.

Net weight (2.2 lb = 1 kg) 13.1 kg / 28 lb 13.7 oz (28.855 lb)
Price in first year of sale
  • Nuss/Teak 798.00 DM
  • Palisander/Schleiflack 848.00 DM

Collectors' prices  
External source of data erb

Source of data Handbuch VDRG 1965/1966

В комплекте шли вместе с акустикой Wega LB3503, 1965, made in Germany

Toshiba HR40X - 4 Channel Quadrophonic Headphones, 1973, made in Japan

Link: radiomuseum

You can switch it from 2 channel to 4 channel.

Covered in a mottled brown, leather type material.
Each ear plate houses have 2 speakers, which provide the balance sound, externally they are labelled left/right and front/rear.
Left plate houses the 2/4 channel switch. the cable has front/rear label too. Two plugs are all 6.3 mm phone connectors. The headphone has a adjustable headband and stop with two screws.

Country:  Japan
Manufacturer / Brand:  Toshiba Corporation; Tokyo
alternative name  
Shibaura Engineering Works
Brand Tokyo Shibaura
Year: 1973 ? Category: Loudspeaker, headphone or earphone
Wave bands - without
Loudspeaker - Is a Headphone or Earphone
Power out
Model: HR40 - Toshiba Corporation; Tokyo
Material Various materials
  • Quadrophonic headphones.
  • 4 channel / 2 channel switcher.
  • Each 2 dynamic LS systems, 20-20000Hz, 4 x 1mW
  • Impedance 8 oHm



Telefunken RC-300 3 motor direct Multidrive Stereo Cassette Deck, 1980, made in Germany

The RC 300 is arguably one of the best, luxurious...and most expensive tape decks Telefunken has ever built. No tape deck before or after had a longplay option, or a three-motor mechanics. The drive mechanism is the MultiDrive mechanism that was developed by Papst, a company that is today still known for the quality of their fans. With a separate motor for the capstan and each reel, there is no need for belts or rubber rolls, all controls are done electronically and there are much fewer parts that can fail.
The RC 300 was part of Telefunken's T 300 high-end component system, and it has a remote control input that allows the drive functions to be controlled via the RP 300 pre-amplifier.

Link: radiomuseum | hifiengine | john.ccac.rwth-aachen

Country:  Germany
Manufacturer / Brand:  Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Year: 1980 ??

Category: Sound/Video Recorder and/or Player
Valves / Tubes 1
Semiconductors (the count is only for transistors) 28 x IC, 76 x transistors, 84 x diodes, 27 x LED
Type: 2-head, single compact cassette deck
Track System: 4-track, 2-channel stereo
Tape Speed: 4.75 cm/s
Heads: 1 x record/playback, 1 x erase
Tape Type: type I, FeCr, Cr02, Metal
Noise Reduction: High Com
Frequency Response: 30Hz to 20kHz (Metal tape)
Signal to Noise Ratio: 72dB (High Com)
Wow and Flutter: 0.2%
Total Harmonic Distortion: 2%
Input: 180mV (line), 0.5mV (mic)
Output: 1.1V (line)
Reception principle Audio-Amplification
Wave bands - without
Details Cassette-Recorder or -Player; Radio Control (+Remote Wire etc)
Power type and voltage Alternating Current supply (AC) / 220/110 Volt
Loudspeaker - For headphones or amp.
Power out
Model: RC 300 - Telefunken Deutschland TFK,
Material Metal case
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 435 x 111 x 375 mm / 17.1 x 4.4 x 14.8 inch
3 motor direct Multidrive Cassette Deck, 2 speed, Hi-COM NR, RCA and DIN connectors, digital tape counter with vacuum fluorescent display. 28 ICs, 84 diodes, 27 LEDs.
Net weight (2.2 lb = 1 kg) 8.1 kg / 17 lb 13.5 oz (17.841 lb)
Collectors' prices 

instruction/owners manual
service manual

Braun KH1000 Headphones (designes by Reinhold Weiss), 1967, made in Germany

Country:  Germany
Manufacturer / Brand:  Braun; Frankfurt
Year: 1967–1975 Category: Loudspeaker, headphone or earphone
Wave bands - without
Power type and voltage No Power needed
Loudspeaker - Is a Headphone or Earphone
Power out
Model: KH1000 - Braun; Frankfurt
Material Various materials
Dynamischer Kopfhörer mit abgedichteten Ohrmuscheln, leichtem Bügel und langem Anschlusskabel mit Normstecker.
Übertragungsbereich 16-20000 Hz, Schalldruck 110dB/1mW, Klirrfaktor 0,3% bei 1000Hz/120dB, Nenn-Scheinwiderstand 400 Ohm, Belastbarkeit 400 Milliwatt.
Net weight (2.2 lb = 1 kg) 0.5 kg / 1 lb 1.6 oz (1.101 lb)
Price in first year of sale 180.00 DM
Collectors' prices  
Mentioned in -- Original prospect or advert
Literature/Schematics (1) - - Manufacturers Literature

Literature/Schematics (2) Handbuch VDRG 1967/1968

Braun CES 1020 Pre-amp Reciever, 1972-75, made in Germany

Link: radiomuseum | hifimuseum | elektrotanya

Country:  Germany
Manufacturer / Brand:  Braun; Frankfurt
Year: 1973–1975 Category: Broadcast Receiver - or past WW2 Tuner
Semiconductors (the count is only for transistors) 60:
Reception principle Super-Heterodyne (Super in general); ZF/IF 455/10700 kHz
Tuned circuits 10 AM circuit(s)     14 FM circuit(s)
Wave bands Broadcast, Long Wave, Short Wave plus FM or UHF.
Power type and voltage Alternating Current supply (AC) / 110; 220 Volt
Loudspeaker - For headphones or amp.
Power out
Model: CES1020 - Braun; Frankfurt
Material Metal case
Shape Book-shelf unit.
Dimensions (WHD) 500 x 110 x 320 mm / 19.7 x 4.3 x 12.6 inch
  • Notes 6 ICs. Hi-Fi-Stereo-Tuner mit Regelvorverstärker; Abstimm- und Feldstärkeanzeige durch Instrumente.
  • Der CES 1020 ist ein sog. Stereo-HiFi-Preceiver (=Tuner-Vorverstärker)  und wurde konzipiert zum Betrieb an aktiven Lautsprechern wie z.B. Braun LV 1020 oder LV 720.
  • Er ist – bis auf die fehlende Endstufe – identisch mit dem Braun Receiver regie 510.
  • Der CES 1020 hat einen UKW-Baustein mit 4-fach-Drehkondensator, alle Stufen befinden sich in getrennten Kammern. Die Eingangsstufe hat eine FET-Kaskodeschaltung und Dual-Gate-FET-Mischer mit getrenntem Oszillator.
  • Der FM-ZF-Baustein verfügt über  6 Bandfilter-gekoppelte IC.Der NF-Verstärker hat 3 Eingänge Phono/ Reserve/ Band bzw. Hinterband-Kontrolle. Die NF-Ausgangsstufe ist geschützt durch Strombegrenzung/ Kurzschluss-Automatik/ Temperatur-Abschaltung.

Technische Daten:
  • FM-Empfindlichkeit:        0,8 μV
  • AM-Bereiche:                 145 – 345 kHz / 512 – 1640 kHz / 5,8 – 8,2 MHz
  • AM-Empfindlichkeit:       < 10 μV
  • Ausgangspegel:              0,5 V
  • Übertragungs-Ber.:         25 – 35.000 Hz
  • Gehäuse:                         Stahlblech mit anthrazit-grauem Kräusellack, Frontblende schwarz oder wahlweise aluminiumfarben

Net weight (2.2 lb = 1 kg) 10 kg / 22 lb 0.4 oz (22.026 lb)
Price in first year of sale 1,450.00 DM
Collectors' prices  
External source of data Erb

Source of data Katalog RFP 1973