K+H Klein + Hummel OY Control Monitor (Discontinued, Production from 1967 until 1987)

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Первый в мире активный многополосный студийный монитор серии "OY"

General Description
The Klein+Hummel Monitor Speaker Model OY is a wall-mounted Loudspeaker with two built-in 30 Watt SiLicon-Transistor-Amplifiers which permits highest-quality monitoring without the need for separate power amplifiers. As a result of its small size, it can be mounted in a most favorable position in control rooms, mix-down areas, editing rooms, disk-cutting Laboratories, etc.

The ModeL OY Loudspeaker may be conveniently mounted next to the picture monitor in TV control rooms so that the sound seems to come from the direction of the picture, and all this without the bother of separate power amplifiers.

Recent advances in Loudspeaker enclosure design has made it possibLe to achieve Low-frequency reproduction even with cabinets of such small size. The Klein+Hummel Model OY Monitor Speaker at last makes possible quality monitoring for location recording and broadcasting as well as for TV remote vans where space is at a premium. All that the model OY requires at its input is a line level low impedance buss. The stringent requirements with respect to frequency response and distortion which studio monitors pose are completely fulfilled by the Model OY. 

Download:
Operation Manual
Catalog Pages: K9 (German)
Catalog Pages: K+H TELEWATT HiFi-Program: Amplifier, Tuner, Loudspeaker Edition 1973 (German)
K+H Professional STUDIO-TECHNOLOGY, Price List C/68 Edition 1968 (German)
Offprint Funkschau 1968 (German)

Technical Data / Specification:

Country: Germany
Manufacturer / Brand: Klein & Hummel; Stuttgart-Kemnat (Marke: K+H, Telewatt, Schwabenradio)
Year: 1968

Free-field transmission characteristic measured with third octave band noise between 80 Hz and 12,5 kHz: Frequency-independent with maximum deviation of ± 2 dB
Harmonie distortion D2 and D3 (above 200 Hz) measured at 86 dB at a 1-m distance: ≤ 1 %
Sound pressure Level at a 1m distance at full modulation: 104 dB/SPL

Elektronics:
Low frequency amplifier: 30 W at 4 ohms
LMid-range/high frequency amplifier: 30 W at 4 ohms
Crossover frequncies: 500 Hz and 3 kHz
Slope of crossover roll-off: 12 dB/Octave
Input, (balanced, floating)
Input impedance: > 4700 ohms
Input sensitivity: + 0 dBu or +6 dBu (0,775 V or 1,55 V) additionally adjustable attenuator

Location-dependent equalisation switch:
- Position 4 - free speaker position (no room boundaries)
- Position 3 - speaker position at a wall (1-room boundary)
- Position 2 - speaker at one room corner (2-room boundaries)
- Position 1 - speaker in a roorn corner (3-room boundaries)


High-frequency control switch 10 kHz:
- Position 1 - - 3 dB
- Position 2 - ±0 dB (factory adjusted)
- Position 3 - +3 dB
- Position 4 - +6 dB

Mechanics:
Cabinet surface finish: NEXTEL Painted
Cabinet color custom: Anthracite

Speaker equipment:
Woofer: 245 mm, 6 ohms, Typ TR 12 AL
Mid-range speaker: 100 mm, 6 ohms, Typ PCH 102
Tweeter: 19 mm, 8 ohms, Typ T 35

Dimensions: 310 x 480 x 230 mm
Volume: 34 l
Weight: 16 kg

Price in first year of sale: 1,960.00 DM