Teufel M80 Grundmodul Lautsprecher Boxen Speaker, 1994-98, made in Germany

The sound is just great. The sounds come saunder and clear and do not distort even in higher decibels. A true listening pleasure is Dolby Digital over the system one has the feeling in the middle of the film to sit as the notes are razor-sharp from the individual boxes are reproduced. The bass I would with a new purchase however a bit bigger and with active power amp select. The set weighs the money bag with 800 DM hardly considering the quality and performance that is delivered. Teufel is a regular winner in well-known HIFI magazines in the field of price performance. Similar systems from well-known manufacturers are in this performance class at 2000 DM and upwards. The 5 year guarantee continues to speak for itself. dooyoo

Link: radiomuseum | blog.teufel | yumpu / [PDF]

Country:  Germany
Manufacturer / Brand:  Teufel Lautsprecher GmbH; Berlin,
Year: 1994–1998 ?? Category: Loudspeaker, headphone or earphone
Loudspeaker 2 Loudspeakers
Power out
Model: Geschlossene Box M80 - Teufel Lautsprecher GmbH;
Material Special material, described in the notes.
Shape Book-shelf unit.
Notes Die Serie Teufel M80 gab es zunächst als Bausatz (entsprechend Ikea-Modell) und war konzipiert als 2-Wege Kombination in Verbindung mit einem Subwoofer, z.B. M800. Diese Kombination war erstaunlich leistungsfähig und zudem den Preis wert. Für die beiden M80 gab es noch eine dazu passenden Ständer, der – entsprechend Teufel Angaben aufgestellt - die akustische Abstrahlung optimierte.  

Technische Daten:
Typ: geschlossene 2-Wege Tief-Mittelton + Hochton-Kombination

Dauerbelastbarkeit: 100W
Impulsbelastbarkeit: 200W
Impedanz : 8 Ohm
Schalldruck: 87dB/1W/1m
Gewicht: 2,7 kg
Dimensions (WHD) 160 x 160 x 250 mm (BxTxH)
Gehäuse:                                 Holz Kunststoff-beschichtet weiß oder schwarz
Empfindlichkeit:                        87 dB/1W/ 1m

Net weight (2.2 lb = 1 kg) 3 kg / 6 lb 9.7 oz (6.608 lb)
Collectors' prices  

Mentioned in - - Manufacturers Literature

Focusrite Liquid Mix 32 Multi-Channel FireWire Mix Processor

Link: focusrite | musiciansfriend

Mix with 32 simultaneous channels of historic compressors and EQs.

Each of Liquid Mix's 32 channels provides Focusrite-quality EQ and compressor emulations selected from a huge pool of high-quality vintage and modern day classics. 20 EQs and 40 Compressors are available straight out of the box, with an expanding library online. Furthermore, a totally unique hybrid 7-band 'super EQ' can be built out of separate classic EQ sections in every one of the 32 channels. Each channel appears as a separate VST/AU/RTAS effect within the sequencer and will work within all major applications, including Pro Tools.

Liquid Mix uses the same patented Dynamic Convolution process as Focusrite's Liquid Channel. Unlike standard convolution techniques, Dynamic Convolution utilizes vast processing power to sample the effect of a classic processor on a series of audio pulses, at many different gain settings and all frequencies. In Liquid Mix, all this processing is done using onboard DSP, so the processing has almost no effect on your computer's own CPU.

Every Liquid Mix channel uses dynamic convolution to provide 20 EQs and 40 compressors, with a free expanding library online.

Onboard DSP
32 Channels of Liquid Mix Compression and 32 EQs run off Liquid Mix's own DSP”many more than are possible with CPU alone.

Software and Hardware control
EQ and Compression can be applied via a hands-on control surface, or within your DAW application via a simple GUI.

Hybrid Super EQ creation
Unique 7-band super EQs can be created, constructed from separate classic EQ sections of your choosing

Roland SDE-3000 Digital Delay, 1983, made in Japan

The Roland SDE-3000 is a high quality Delay Machine featuring various delay effects and also the Memory function that retains up to eight different panel settings, therefore, it is extremely helpful for both studio and live performance.

Adopting the companding PCM equivalent to 16 bit, the Roland SDE-3000 offers such wide dynamic range (100dB) and low harmonic distortion (0.03%). Long Delay of 4.55 (Frequency Characteristic: 20Hz to 8kHz) is now available, which is specially useful for live performance.

The entire Front Panel setting of the Roland SDE-3000 can be stored into memory. (The Input Level is not included here.) The accuracy of the Delay Time Display is as good as 0.4%. The time is indicated by 0.1ms step up to 10ms, and after that by 1ms step.

The Input and Deley Output levels can be controlled, so that the lowest S/N ratio and widest Dynamic Range can be attainable. Basically, using the SDE-3000 as a Pre-amplifier should be refrained, as it is designed to be UNITY (Output: Input = 1:1).

The FEEDBACK LOOP SEND and RETURN Jacks allow wide variety of the effect sounds. The Output jack for the inverted Modulation CV is useful for when two sets of the Roland SDE-3000’s are used.

The Remote Control Jacks sum as DELAY ON/OFF, HOLD, PRESET SHIFT are provided for even wider variety in live performance

Link: muzines | archive | nodevice | vintagedigital

Apogee Rosetta AD Digital Stereo 24-bit a/d converter 44.1/48 khz

Hitachi HA-610 Integrated Stereo Amplifier, 1976-78, made in Japan

Link: hifiengine | elektrotanya

Power output: 70 watts per channel into 8Ω (stereo)
Frequency response: 7Hz to 70kHz
Total harmonic distortion: 0.3%
Damping factor: 60
Input sensitivity: 2mV (MM), 100mV (line)
Signal to noise ratio: 70dB (MM), 90dB (line)
Output: 100mV (line), 30mV (DIN), 0.8V (Pre out)
Speaker load impedance: 4Ω to 16Ω
Semiconductors: 4 x FET, 55 x transistors, 29 x diodes
Dimensions: 435 x 144 x 388mm
Weight: 12kg
Year: 1975


Acoustic Research AR-17 Two Way Loudspeaker System, 1978, England

Link: hifiengine

Type: 2 way, 2 driver loudspeaker system
Frequency Response: 43Hz to 25kHz
Power Handling: 50W
Recommended Amplifier: 15 to 60W
Crossover Frequency: 2000Hz
Sensitivity: 86dB
Bass: 1 x 200mm acoustic suspension
Tweeter: 1 x 32mm pressure
Dimensions: 254 x 473 x 222mm
Weight: 7.7kg

Related Catalogues
Truth in Listening

Rank Arena HT 26, 1972, made in Denmark [serial: 382139, 382140]

Link: radiomuseum | Rank Arena ht 26 [взгляд изнутри]

Есть маленький надрыв в одном вч, который пришлось заклеить аккуратно, все на фотографиях ниже.
Заменены по одному конденсатору в каждой колонке (один был 0,127 мкф, второй 3,9 МКФ, установлена как временно-постоянную К73-11 пленка)
Катушку в одном из фильтров сидит на новом клею и взята на "сцепку" (от греха подальше).

Serial #: 382139, 382140.

Country:  Denmark
Manufacturer / Brand:  Rank-Arena, Horsens
Brand Arena
Year: 1972 Category: Loudspeaker, headphone or earphone
Wave bands - without
Power type and voltage No Power needed
Loudspeaker 4 Loudspeakers
Power out 60 W (unknown quality)
Model: HT26 - Rank-Arena, Horsens
Material Wooden case
Shape Console, Lowboy (legs < 50 %).
Dimensions (WHD) 500 x 800 x 300 mm / 19.7 x 31.5 x 11.8 inch

  • 3-way HiFi-box with 4 speakers and 60 watts RMS into 8 ohms.
  • Frequency range: 20-20000Hz.
  • Volume: 75 liters.
  • Crossover transition at 500 / 5000Hz.
  • Housing in teak.
Net weight (2.2 lb = 1 kg) 23 kg / 50 lb 10.6 oz (50.661 lb)
Source of data -- Original prospect or advert
Model page created by Franz Scharner. See "Data change" for further contributors.

Philips 22rh413 LS BOX-5413 SM, 1972, made in Netherlands


Link: radiomuseum | elektrotanya

Country:  Netherlands
Year: 1971/1972 Category: Loudspeaker, headphone or earphone
Wave bands - without
Power type and voltage No Power needed
Loudspeaker 2 Loudspeakers
Power out 20 W (30 W max.)
Model: Hi-Fi-Lautsprecherbox 22RH413 - Philips; Eindhoven tubes
Material Wooden case
Shape Book-shelf unit.
Dimensions (WHD) 270 x 270 x 110 mm / 10.6 x 10.6 x 4.3 inch
Notes HiFi Lautsprecherbox 22RH413
  • 2-way system
  • woofer Ø 166mm
  • tweeter with 25mm cap
  • frequency range 50 to 20,000Hz
  • crossover frequency of the switch 1.200Hz
  • load capacity 20 watts sinus or 30 watts music power
  • flat box only 105mm deep, volume 4.0l
  • Smallest box from the "HiFi-International" series
  • Wood finish walnut

Net weight (2.2 lb = 1 kg) 3.5 kg / 7 lb 11.3 oz (7.709 lb)
Source of data - - Data from my own collection
Mentioned in -- Original prospect or advert (Philips Katalog 8/1971 und 8/1972)

Literature/Schematics (1) -- Original-techn. papers.

TC Electronic M5000 Digital AudioMainframe, Ultimate Audio Processing Platform, made in Denmark

M5000 - Digital AudioMainframe... The Ultimate Audio Processing Platform
The M5000 Digital Audio Mainframe is unlike any other effects processor you have ever seen. By combining TC DARC™ technology with the skills of the best signal processing software engineers around the world, we have created the perfect mix of effects you have access to in the M5000 today. 

What you see is not what you get - you get more! The unique design of the M5000 hardware platform allows for future upgrading of both the software and hardware aspects. It will far outlast any other signal processor you own or can buy today.

Operating the M5000 is a breeze and upgrading it couldn't be simpler. All M5000 owners receive regular, easy to install, software upgrades -featuring the very latest state-of-the-art effects. Add to this hardware upgrades like the impressive ATAC Remote Controller and you have a package that is unbeatable.

Link: tcelectronic

Estonia Stereo (Эстония-Стерео) Tube Amplifier, 1970, Estonia

Завод «Пукане РЭТ» приступил к серийному выпуску радиол высшего класса — «Эстония-стерео». Это» первая в стране радиола, позволяющая не только проигрывать стереофонические грамофонные пластинки, но и принимать стереофонические передачи из эфира. 
В конструкции новой радиолы использованы многие достижения современной электроники, а также прогрессивные методы монтажа. В ходе подготовки серийного производства радиолы реконструирован один из монтажных цехов предприятия, где были установлены новые конвейерные линии сборки и монтаж радиол. По новому организована и регулировка их. Современное оформление «Эстонии-стерео» и ее высокая чувствительность и избирательность, а также высокое качество звучания двух выносных акустических агрегатов удовлетворят самого взыскательной радиослушателя. В текущем году «Пунане РЭТ» выпустит первые тысячи новых стерео-радиол.
На снимке: новая радиола «Эстония-стерео». stena.ee
Link: rw6ase

TC Electronic Impact Twin 24-bit/192kHz Firewire Audio Interface

Link: tcelectronic | обзор на IXBT | TC Konnekt Live vs Impact Twin

Impact Twin's two mic preamps utilize our Impact III™ Technology featuring three stages of top level processing. You get a high-quality and very flexible mic preamp, superior 24/192 HD Conversion, plus a set of recording Channel Tools that lets you shape and optimize your sound making it the perfect recording. With each of these stages carefully combined behind Impact Twin's rugged and cool looking exterior, you have a 'take anywhere' device that offers the ultimate in recording quality.

Impact III Mic Preamp
The Impact III Mic preamp makes the best of any microphone. So whether you record with the finest vintage tube mics, the most demanding low-budget condensers, or even a handheld dynamic, Impact Twin has been designed from the ground up to maximize the signal you record. Whether recording instrument, line or mic, with or without phantom power, Impact Twin works the way you need it to.

24/192 HD Converters
No matter how good your mic preamps, if your signal path doesn't lead on to the best converters then you may as well pack up and go home. Impact Twin's 24/192 HD Converters let you select your conversion rate - all the way from 44.1kHz right up to High Definition 192kHz for the ultimate in pristine audio capture, maintaining the essential transients of your sound.

Channel Tools
For years we've been innovating in the world of signal enhancement, so Impact Twin includes essential recording Channel Tools that go even further to optimize your sound with onboard EQ, Compressor and De-esser that quickly, simply and invisibly tame and enhance those signals - no matter what you're recording.

ALTEC 806-8A (1973-76) + ALTEC 811B Sectoral Horns

ALTEC 806-8A
Released in 1973 - 45,000 (1 unit, circa 1976)

Driver unit used for A7 - 8 and late Valencia etc.
Magnetic circuits are different between 806 - 8 A and 802 - 8 D.
Broadband playback is possible by combining with 511 B horn and 811 B horn
High performance is secured by aluminum alloy diaphragm and equalizer by special double slit structure of precision machining.
Model Driver unit
Frequency characteristic 500 Hz to 20 kHz
Permissible input 30 W
Impedance 8 Ω
Output sound pressure level 107 dB / W / m ||| 108 dB (New JIS, described in 1977 catalog)
Magnetic flux density 13,000 gauss
Crossover frequency 500 Hz or more
Throat diameter 25 mm
Voice coil diameter 45 mm
Suitable horn 511B, 811B
Adaptable network N501-8A, N801-8A
External dimensions Diameter 114 × depth 83 mm (described in 1974 catalog) ||| Diameter 114 × depth 71 mm (described in 1976 catalog)
weight 2.6 kg

Qed tape switching unit 3 way, made in England

Conn StroboTuner ST-5 (ST-6) Piano Tuning Organ Vocals instrumental vintage, 195¿, made in USA

Year: 1950 ? 
Category: Miscellaneous (Other, Various) - see notes
Valves / Tubes 6: 12AU7 6AQ5 6AQ5 5879 12AT7 6X4
Wave bands - without
Power type and voltage Alternating Current supply (AC) / 60 cycles AC 105 - 120 Volt
Loudspeaker - - No sound reproduction output.
Power out
Model: Conn Strobotuner ST-6 - Conn, C.G. Instruments Ltd
Material Metal case
Shape Tablemodel, with any shape - general.
The Conn Strobotuner model ST-6 uses tubes and two neon lamps NE2H. It has a microphone with a cable inside the lid including the power cable. The pentode 5879 was introduced in 1950. Schematic and technical picture by courtesy of Terry Smythe (mts.net).

The first Strobotuner was invented by Conn and called Ctroboconn and came on the market in 1936. On YouTube you find this very well done explanation about the principle of strobe tuners including a more modern Conn Strobotuner - like the Strobotuner ST-12 (or ST-11).

Joseph Plateau of Belgium is generally credited with the invention of the stroboscope in 1831 (1932), when he used a disc with radial slits which he turned while viewing images on a separate rotating wheel. Plateau called his device the "Phenakistoscope". There was a simultaneous and independent invention of the device by the Austrian Simon von Stampfer, which he named the "Stroboscope"