Audio/HIFI Applications

100W SUBWOOFER KIT-K8077

Kit contains all necessary parts to build your compact but powerful high quality subwoofer
* Wooden panels not included!

Price: $161.25

Features

• bass-reflex system with adjustable tube

• compact size due to dual-speaker principle

• adjustable level and filter response

• auto power-on/off system

• phase switch (0°-180°)

• line level and speaker level inputs for maximum compatibility

• 'Full-range'-option for use in active speaker system

• separate chamber for electronics avoids air leaks

Specifications

• power output: 100Wrms/ 4ohm (10% THD)

• filter freq. response:

  • wide: 25 - 110Hz (-6dB)

  • narrow: 18 - 65Hz (-6dB)

• speakers: two 6.5" 8 ohm drivers

• line level input sensitivity: 500mV

• auto turn-on level: 5mV

• volume*: approx. 20 liter

• power supply: 120/230VAC

• dimensions: 460x310x210mm / 18,22 x 12,28 x 8,32"

FM OSCILLATOR-K1771

Mini FM modulator (100-108MHz). Integrated pre-amplifier, to which any type of microphone may be connected. Family broadcasts, baby phone, security. May be received by any portable FM radio or tuner.

Specifications

• power supply: 9 - 12V DC

• input sensitivity preamplifier: 5mV

• PCB dimensions: 1.8" x 2.8"

Price: $21.40

POLICE SIREN-K2604

Enter the world of amazing electronic sounds and noises. Create or imitate sirens of all kinds by adjusting 3 trimmers. Powerful sound with a 2W amplifier on the PCB.

Specifications

• power supply: 8 - 14V DC / 1A

• dimensions: 3.1" x 2.2"

Price: $16.20

DUAL STEREO VU METER-K2668

This module contains 2 stereo VU meters with 2 x 5 LED indicators

Specifications

• indication: -13, -8, -3, 0, +3dB

• sensitivity: 0dB = 0.775Vrms (easily adjustable)

• supply voltage: 14 - 18V DC / 62mA

• PCB dimensions: 1.1" x 3.9"

Price: $27.20

POWER SUPPLY FOR K4004B/K4005B-K4006

Price:  $31.80

PINK NOISE GENERATOR-K4301

To analyze the acoustic properties of a room (usually a living room), a good pink noise generator together with a spectrum analyzer is indispensable. Moreover, a microphone with as linear a frequency characteristic as possible (from 20Hz to 20kHz) is needed. If you have an equalizer available, then the response can not only be checked but also corrected. Easily adapted to produce "white noise"

Specifications

• pseudo random digital noise

• regulator sliding length: 33 bit

• clock frequency: adjustable between 30 and 100kHz

• pink noise filter: 3dB / octave (20Hz to 20kHz)

• output voltage: 150mVrms

• output impedance: 1Kohm

• power supply: 9 - 12V AC or 12 - 15V DC / 5mA

• PCB dimensions: 2.8" x 1.7"

Price:  $21.80

MONO VU-METER 10 LEDS-K4304

VU meter with a scale consisting of 10 LEDs and an adjustable input. Dot or bar indicator. Supplied with 1 front panel suitable for horizontal or vertical mounting.

Specifications

• range: -20dB to +3dB

• power supply: 10 - 15V DC / 250mA

• input sensitivity:

  • low input: 150mV to 6Vrms (47K)

  • high input: 1.5V to 60Vrms (470K)

• dimensions: 1.5" x 2.7"

Price: $26.40

STEREO VU-METER 2 x 10 LEDS-K4305

Stereo VU meter with 2 x 10 LEDs (dot or bar indicator) and an adjustable input. Included in package : 1 front panel suitable for horizontal or vertical mounting.

Specifications

• range: -20dB to +3dB

• power supply: 10 - 15V DC / 250mA

• input sensitivity:

  • low input: 150mV to 6Vrms (47K)

  • high input: 1.5V to 60Vrms (470K)

• dimensions: 1.5" x 2.7" (x2)

Price: $39.20

PRECISION STEREO VU-METER 2 X 15 LEDS-K4306

Stereo VU meter with 2 x 15 LEDs (dot or bar indicator) and an adjustable input. Included in package : 1 front panel suitable for horizontal or vertical mounting.

Specifications

• scale from: -23dB to +5dB (linear scale between -4 and +5dB)

• precision: ± 0.5dB (1kHz)

• input impedance:

  • low input: 150mV - 5Vrms

  • high input: 1.5V - 50Vrms

• frequency range: 20Hz - 30kHz (-3dB)

• power supply: 12 - 15V DC / 300mA

• dimensions: 5.9" x 2.2"

Price: $58.00

AUDIO POWER METER-K4307

10 LED scale, up to 2000Wrms power measurements. Does not need a special power supply, because it is supplied directly from the speaker output. Ideal for car audio systems and PA systems. Also usable for bridged amplifiers. The unit can be used both horizontal and vertical. The kit comes with a front panel and four attractive front stickers, for the different scales.

Specifications

• four different scales:

  • at 4 ohm load in low power mode: 0.3 to 400Wrms

  • at 4 ohm load in high power mode: 10 to 2000Wrms

  • at 8 ohm load in low power mode: 0.15 to 200Wrms

  • at 8 ohm load in high power mode: 5 to 1000Wrms

• minimum input sensitivity: 1.1Vrms (low power mode)

• maximum input voltage: 130Vpeak (high power mode)

• current consumption: 25mA at full scale

• luminous intensity: 8 to 20mcd / LED

• dimensions: 4.7" x 1.6" x 1.1"

Price: $32.85

2-CHANNEL LOUDSPEAKER PROTECTION-K4700

This stereo speaker protection prevents switch-on clicks and DC components on the output of the amplifier connected.

Specifications

• switch-delay: ± 6 seconds

• DC protection: +1V/-1V

• max. input voltage: 200Vpp + DC

• max. switching current: 10A

• LED indication for: WAIT (switch-on delay) and ERROR (DC on speaker output)

• supply voltage: 220VAC

• PCB dimensions: 2.2" x 4.9"

Price: $39.20

LOUDSPEAKER DC-PROTECTION-K4701

Burn out of a power amplifier's output stage nearly always results in a dangerous direct current to the loudspeaker's terminals. In turn, this results in loudspeaker burn out. This protection unit, requiring no supplementary supply, is simply mounted between the amplifier and the speaker in the speaker cabinet and disconnects the speaker as soon as a direct current appears. Also ideally suited for use in the car.

Specifications

• maximum input voltage: 90V DC

• max. contact current: 10A

• minimum safety voltage: 10V DC

• no external supply needed

• dimensions: 1.6" x 2.6"

Price:$ 23.20

TELEPHONE AMPLIFIER-K4900

This telephone amplifier may be used as a free-standing amplifier with speaker, e.g. to listen to a telephone conversation, or the output may be connected to an amplifier or mixing panel (e.g. radio stations).

Specifications

• input: isolation transformer interface

• speaker output: 0.5W / 8ohm

• line output: 0dB (0.775Vrms)

• power supply: 7 - 9V AC or 9 - 12V DC / 150mA

• PCB dimensions: 2.5" x 2.1"

Price: $18.40

Generates sound of a vintage steam engine. Adjustable 'speed' and volume. Great for model railroads, radio plays, stage, as gadget. With 'steam whistle'-push button.

Specifications

• power supply: 9V battery (not incl.)
• comes with 8 ohm/0.5W miniature speaker
• dimensions: 3.9" x 3.3"

Price:$ 13.20