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

SOUND GENERATOR-K4401

The ideal device for DJ's, jingles for radio stations or just to attract attention. With one output for direct connection to a speaker and one line output for connecting to a mixer panel or amplifier. The following effects may be generated directly by means of a push button : Machine gun · European siren · Phasor gun · Racing car with motor howl · Screeching of car tires on a curve · Explosion · Mortar fire followed by explosion · Music : "Wild charge tune" or "Snake charmers tune" · US siren

Specifications

• supply voltage: 8 - 10V DC / 100mA or 9V battery (not incl.)

• line output: 1Vrms

• speaker output: 1W

• PCB dimensions: 3.0" x 3.0"

Price: $36.80

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

ELECTRONIC RECORD/PLAYBACK MODULE-K8030

Price: $ 31.20

High-quality, natural voice/audio reproduction. Can be used to greet visitors, play pranks, warn burglars,… EEPROM technology with 100-year message retention. Microphone included. Up to 20 seconds of recording time per module. No memory loss in case of power failure. Loudspeaker and line-out included. 2 Play modes : Push once to play message / Play message until button is released. Add an optional rotary switch (8404-1C) for message selection.

Specifications

• speaker output: 12mW, 8 ~ 16 ohm

• power supply: 8 - 18V DC, or 6V battery (4 x AA or AAA) (not incl.)

• power consumption:

  • DC power supply: 4mA in standby, max 100mA when playback

  • battery operated: 20µA in standby, max 100mA when playback

• sampling frequency: 6.4kHz

• dimensions: 3.7" x 2.9" x 1.0"

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

Amplifiers

$10.89

K17 Kit 17 LM386 Audio Amplifier Module

$10.89

K27 Kit 27 TDA7052 1W Amplifier Module, Mono

$21.78

K47 Kit 47 LM383/TDA2002 Amplifier Module

$19.96

K48 Kit 48 Introduction To Class AB Amplifiers

$16.33

K50 Kit 50 25W HiFi Audio Amplifier Module

$10.89

K87 Kit 87 1W Stereo Amplifier Module

$23.46

K88 Kit 88 10W+10W Stereo Amplifier Module

$25.90

K89 Kit 89 Stereo VU Meter

$18.77

K90 Kit 90 3W+3W Stereo Amplifier module

$18.15

K97 Kit 97 4 Watt Amplifier Module

$10.89

K98 Kit 98 Preamplifier

$24.00

K100 Kit 100 Stereo Preamplifier & Tone Control Unit

$20.90

K105 Kit 105 18W BTL Audio Power Amplifier Module

$36.50

K106 Kit 106 50W Hi-Fi Audio Amplifier Module

The TDA7294 monolithic IC is at the heart of this 50W amplifier module from ST Electronics. It is intended for use as an audio class AB amplifier in hi-fi applications. + / - 30V supply needed. Important: the user must supply a heatsink rated at 1.4 deg C / W. All components supplied.

$13.50

K115 Kit 115 1W Stereo Amplifier

 $11.25

K139 Kit 139 1W Stereo Amplifier Module with DC Volume Control TDA7053A.

 $17.40

K143 Kit 143 6 - 10W Stereo Amplifier Module using TDA2005

$16.68

K155 Kit 155 Stereo Tone Control

DISCRETE POWER AMPLIFIER 200W-K8060

Price: $38.20

Features

• excellent value for money

• fully discrete design using Epitaxial Darlington transistors

• DC supply circuit on board with LED indication

• ideal for active speaker system or subwoofer, guitar amp, home theatre systems, instrument amp, etc.

• comes complete with transistor isolators, spacers and bolts

• overload and short-circuit protection

Specifications

• 200W music power @ 4 ohm load

• 100Wrms power @ 4 ohm load

• 70Wrms power @ 8 ohm load

• distortion: 0.02% @ 1KHz/10W

• damping factor: >800

• frequency response: 3Hz to 200KHz (-3dB)

• sensitivity: 0.6Vrms

• signal to noise ratio: 115dB

• power supply: 2 x 25-30Vac / 120VA

• PCB dimensions: 107x62mm (approx.)

• recommended heatsink: HSVM100 (pre-drilled) or S44/75 (not drilled)

• recommended power transformer:

  • 230VAC input, 2 x 30VAC output: 12030

  • 115 / 230VAC input, 2 x 25VAC output: TR8040 (output power reduced by ±15%)

POWERBLOCK - POWER AMPLIFIER-K8081

This power amplifier is an ideal set-up for active speaker use.
Build a high-quality system, using two (stereo) or more (surround) amplifiers.
Due to its auto switch-on, through input signal sensing, the unit can be installed at almost any place.
Comes complete with enclosure and transformer.
 

Features

• fully discrete design using Epitaxial Darlington transistors

• includes all connectors, transformer and enclosure

• overload and short-circuit protection

• DC error protection with LED indication

• automatic switch-on upon input signal sensing (automatic switch-off after a period of no signal)

Specifications

• 200W music power @ 4 ohm load

• 100W rms power @ 4 ohm load @ 10%THD

• distortion: 0.02% @ 1KHz/10W

• damping factor: >800

• frequency response: 3Hz to 200KHz (-3dB)

• sensitivity: 0.6V rms

• signal to noise ratio: 115dB

• power supply: 235 or 115 Vac

• dimensions: 195 x 180 x 60mm (7.7" x 7" x 2.4")

Price: $170.85

VOLUME AND TONE CONTROL - PREAMPLIFIER-K8084

Price: $30.60

When using one of our amplifiers (big or small), you always need a volume control and preferably also a tone control.
This kit comes complete with all input / output connections and potentiometers.
Furthermore it is possible to amplify or attenuate the input signal.

Features

• stereo volume control

• stereo Baxandall bass and treble control

• bass and treble potentiometers with centre click

• customizable attenuation or amplification

• complete with knobs

Specifications

• supply voltage: 2 x 12VAC / 100mA

• frequency response: 3Hz - 500kHz (-3dB)

• standard amplification: x1

• signal to noise ratio: 98dB

• harmonic distortion: < 0.005% (@1KHz)

• maximum output: 5V RMS

• tone control:

  • + and -15dB @ 20Hz

  • + and -15dB @ 15kHz

• Input impedance: 50k ohms

• PCB dimensions: 105 x 70mm / 4,1 x 2,75"

UNIVERSAL MONO PRE-AMPLIFIER-K1803

This kit has been developed as pre-module for a number of audio applications where there is insufficient input signal. Applications as a microphone pre-amplifier or for level correction.

Specifications

• power supply: 10-30V DC / 10mA

• output impedance: 1Kohm

• adjustable output level: max. 40dB

• frequency range: 20Hz to 20kHz ± 3dB

• max. input signal: 40mV

• PCB dimensions: 1.2" x 1.7"

Price: $10.60

UNIVERSAL STEREO PRE-AMPLIFIER-K2572

Universal low-noise stereo pre-amplifier.

Specifications

• frequency range: 40Hz - 30kHz (-3dB)

• max. input voltage: 50mVrms

• adjustable gain: 40dB max.

• output impedance: 1Kohm

• power supply: 10-30V DC / 5mA

• PCB dimensions: 1.7" x 2.6"

Price: $20.80

STEREO RIAA PRE-AMPLIFIER-K2573

RIAA stereo pre-amplifier for md pick-ups. Low noise.

Specifications

• supply voltage: 10 -30V DC / 5mA regulated

• gain (1kHz): 35dB

• input signal: 5 - 10mV

• input impedance: 47Kohm

• PCB dimensions: 1.7" x 2.6"

Price: $19.20

AM/FM ANTENNA AMPLIFIER-K2622

This amplifier provides 22dB gain wherever you need it. DC power supply directly or via the coax cable. Metal housing included.

Specifications

• gain: 22dB

• power supply: 12V to 15V / 3mA

• input- and output impedance: 50 - 75ohm

• frequency range: 10MHz to 150MHz

• dimensions: 3.4" x 1.4" x 0.9"

Price: $25.20

3W MONO AMPLIFIER-K8066

Price: $16.80

Small but powerful amplifier suits a wide range of applications such as : microphone amp, for doorbells, melody generators, intercom, sound effects, earphones, radio receivers, PC sound card, musical instrument

Features

• compact size

• low partcount

• no additional heatsink required

• single supply

• wide supply range

• excellent protection

Specifications

• output power: 3Wrms (4-8 ohm, 15VDC, 10% THD)

• frequency range: 50Hz - 20kHz (1W/8ohm, -3dB)

• gain: 32dB (40x)

• thermal protection

• short circuit protection

• power supply: 6 ~ 15VDC

• current consumption: 500mA max.

• dimensions: 1.6" x 1.9"

7W MONO AUDIO AMPLIFIER-K4001

This small amplifier is constructed around the TDA2003 IC, capable of delivering 4Wrms at 4ohms. The IC is completely thermally and short-circuit protected. A conventional direct current can be connected as supply.

Specifications

• music power output: 7W / 4ohm

• RMS output: 3.5W / 4ohm or 2W / 8ohm

• total harmonic distortion: 0.05% (1W / 1kHz)

• frequency response: 20Hz to 20kHz (-3dB)

• signal/noise ratio: 86dB (A weighted)

• input sensitivity: 40mV / 150Kohm

• overload and short-circuit protected

• supply voltage: 15V DC (8 to 18V DC possible) / 0.5A

• dimensions: 2.2" x 1.4"

Price: $16.60

2 X 30W AUDIO POWER AMPLIFIER-K4003

This small amplifier is constructed with the TDA2616 IC, with a maximum supply capability of 2 x 15Wrms (4ohm) of 2 x 10Wrms (8ohm). The IC is thermally and short-circuit protected. Additional rectifier and smoothing filter are unnecessary, as alternating current can be directly connected to the unit.

Specifications

• music power output: 2 x 30W / 4ohm

• RMS output: 2 x 15Wrms / 4ohm or 2 x 10Wrms / 8ohm

• total harmonic distortion: 0.07% (1W / 1kHz)

• channel separation: 70dB

• frequency response: 7Hz to 60kHz (-3dB)

• signal-to-noise ratio: 98dB (A weighted)

• input sensitivity: 300mV / 150Kohm

• transient suppression on/off switch

• overload and short-circuit protection: max. 1h

• supply voltage: 2 x 12V AC / 2A (50W transfo recommended)

• dimensions: 2.8" x 2.0"

Price: $36.40

200W MONO / STEREO AMPLIFIER-K4004B

Price: $112.28

Universal, robust and compact are the words to describe this amplifier.
Universal : A stereo or a mono amplifier. Three input sensitivities are selectable.
Robust : Overload and short-circuit protection, protection against incorrect power supply polarity and thermally protected too. Speaker transient suppression.

Specifications

• rms output power: 2 x 50W / 4ohm ; 2 x 40W / 8ohm

• rms mono-bridged power: 100W / 8ohm

• total music output: 200W

• harmonic distortion: 0.01% at 1kHz

• signal-to-noise ratio: 102dB (A weighted)

• stereo channel separation: 85dB

• damping factor (at 100Hz): > 1000

• input impedance: 22Kohm

• input sensitivity: 300mV, 550mV or 1V switchable

• thermal protection: max. 1h

• short-circuit and overload protection: max. 10 sec.

• power supply: + 28V DC and - 28V DC max.

• consumption (2 x 4ohm or mono-bridge 8ohm): 4A max.

• consumption (2 x 8ohm): 2.5A max.

• dimensions: 8.3" x 3.4" x 2.5"

400W MONO / STEREO AMPLIFIER-K4005B

Price: $156.00

Universal, robust and compact are the words to describe this amplifier.
Universal : A stereo or a mono amplifier. Three input sensitivities are selectable.
Robust : Overload and short-circuit protection, protection against incorrect power supply polarity and optional thermal protection. Speaker transient suppression.

Specifications

• rms output power: 2 x 100W / 4ohm ; 2 x 75W / 8ohm

• rms mono-bridged power: 200W / 8ohm

• total music output: 400W

• harmonic distortion: 0.003% at 1kHz

• signal-to-noise ratio: 96dB (A-weighted)

• stereo channel separation: 76dB

• damping factor (at 100Hz): > 2000

• input impedance: 22kohm

• input sensitivity: 150mV, 300mV or 950mV switchable

• supply voltage for 8 ohm: + 35 to 40 VDC and - 35 to 44V DC / 2.5A

• supply voltage for 4 ohm or mono: + 25 to 30V DC and - 25 to 30V DC / 5A

• dimensions: 13.8" x 2.5" x 3.4"

Mashall  18W  Tube Amplifiers Kit

With assembly manual, easy and clear to assemble

Price: $319.00

STEREO TUBE AMPLIFIER / CHROME VERSION-K4040

For most of us a high power tube amplifier is unaffordable. This kit changes that, so that now everybody can enjoy that sublime "tube sound". The sound of tubes has never been surpassed, nor by transistors, nor by FETs. In the course of developing this amplifier, special attention was given to the housing so that the expensive tubes are on display in a way that is very pleasing to the eye. The weakest point of an tube amplifier are the output transformers ; that's the reason why we use ultra-linear and over-rated output transformers (toroidal) to guarantee a rich bass response. To extend the life of the precious valves, the amplifier is provided with an switch on delay, so that the high voltage is switched on when the tubes are warmed up.

Features

• pure valve sound with high quality EL34 tubes

• high quality black and chrome housing

• chrome valve socket covers

• easy bias adjustment with LED indication

• removable bottom for easy access and service

• high quality capacitors and components

• gold plated input and speaker terminals

• standby function

• "Soft start" circuit for power transformer

Specifications

• output power: 2 x 90Wrms music power for loads of 4 or 8 ohm

• power bandwidth: 15Hz - 40kHz (-3dB ref. 50W)

• frequency range: 8Hz - 80kHz (-3dB ref. 1W)

• harmonic distortion: 0.08% (1kHz / 1W) / 0.7% (1kHz / 90W)

• signal-to-noise ratio: > 105dB (A-weighted ref. 90W)

• channel separation: >75dB (ref. 90W)

• input impedance: 34Kohm

• input sensitivity: 1Vrms at 95W

• damping factor: >10 (100Hz)

• weight: 37.5lb

• dimensions: 16.7" x 5.1" x 13.8"

 Price: $1821.00

DIGITALLY CONTROLLED PREAMPLIFIER-K4100

Price: $483.75

A pre-amplifier is an indispensable device for controlling a power amplifier. When developing this pre-amplifier we opted for DIGITAL control of all functions, so that it contains no potentiometers at all ! All functions, such as volume, tone control, balance and input selection can be operated using push buttons and a LED display gives a clear indication of all settings. All functions may be operated with a remote control unit

Specifications

• input sensitivity:

  • PHONO: 5.5mV / 50Kohm

  • CD: 500mV / 32Kohm

  • TUNER, TAPE1 & 2: 360mV / 22Kohm

• output level:

  • LINE: 1V

• signal-to-noise ratio (A weighted):

  • PHONO: 75dB

  • TAPE, CD, TUNER: 100dB

• total harmonic distortion: 0.01%

• frequency response: 8Hz - 150kHz (-3dB)

• channel separation: 90dB

• cross talk: -99dB

• headphones output: 280mW / 32ohm

• mains output: 5A

• consumption: 6W max.

• dimensions: 16.7" x 2.0" x 13.8"

• weight: 11lb

GUITAR HEADPHONE AND PREAMPLIFIER-K4102

An electric guitar cannot be connected to just any amplifier or audio installation. This pre-amplifier has been designed for this purpose and provides you with a headphone output, allowing you to practice without disturbing others. Moreover, it is fitted with a special device for tone adjustment, allowing anyone to create their personal sound.

Specifications

• sound adjustment

• adjustable input sensitivity

• low noise

• headphones output: max. 2 x 50mW / 32ohm

• housing included

• power supply: 9V battery (not incl.)

• dimensions: 2.8" x 1.2" x 4.1"

Price: $31.95

MONO 65W PURE CLASS A TUBE POWER AMPLIFIER WITH KT88 TUBES-K8010


Price: $1378.95

Plenty of power, deep bass and low distortion, yet still affordable. This single channel tube amp delivers up to 65W of pure class A power, due to its KT88 output penthodes. A attractive chrome plated enclosure has been designed, to match this state-of-the-art design. It comes complete with chrome plated tube base cover rings and heavy duty cabinet feet.

Features

• 4 quality KT88 tubes in push-pull combination

• gold plated heavy duty speaker and RCA connectors

• easy bias adjustment with LED readout

• standby mode stretches tube life

• soft start circuit prevents mains fuse tripping at power-up

• no-compromise quality components

• custom made oversized toroid output and power transformers

• one single PCB ensures hassle free assembly and wiring

• removable cabinet bottom for hassle free servicing

Specifications

• tubes: 4 x KT88, 1 x ECC81, 1 x ECC82

• output power: 65Wrms class A in 4 or 8ohm

• bandwidth: 8Hz to 80kHz (-3dB/1W)

• harmonic distortion: 0,1% at 1W/1kHz

• signal/noise ratio: >110dB (A-weighted)

• input sensitivity: 1V rms minimum (adjustable)

• supply voltage: 100, 120, 230 or 245V AC

• max. power consumption: 300VA

• dimensions: 14.2" x 14.2" x 6.3"

MONO 90Wrms TUBE POWER AMPLIFIER MODULE-K8011

Price: $717.00

Upgrade your guitar amp, jukebox or construct your own audio system with this superb tube amplifier module. Plenty of power, very low distortion, excellent bass response, this amp will satisfy even the most critical listener. It comes complete with PCB, toroidal custom made power and output transformers, all necessary tubes and an extensive manual.

Features

• 4 quality EL34 tubes in push-pull combination

• easy bias adjustment with LED readout

• standby mode stretches tube life

• soft start circuit prevents mains fuse tripping at power-up

• no-compromise quality components

• custom made oversized toroid output and power transformers

• one single PCB ensures hassle free assembly and wiring

Specifications

• tubes: 4 x EL34, 1 x ECC81, 1x ECC82

• output power: 90Wrms at 4 or 8ohm

• bandwidth: 2Hz to 125kHz (-3dB/1W)

• harmonic distortion: 0,1% at 1W/1kHz

• signal/noise ratio: 104dB (A-weighted)

• input sensitivity: 1Vrms minimum (adjustable)

• stand-by power consumption: 60W

• max. power consumption: 230W

• assembled module dimensions: 12.6" x 13.6" x 5.0"

TUBE CONTROL AMPLIFIER-K8020

Features

• no compromise high-end design

• 4 inputs

• exclusive, high finish, solid aluminum enclosure

• high quality ALPS volume potentiometer

• full tube design

• auto muting (warm up) at power on

• highly reliable reed relay input selection

• separate left and right input section

• programmable level adjustment: +6dB for each input

• regulated DC filament supply

• output mute function

• switchable monitor output (for tape, CDR, MD,...)

Specifications

• input sensitivity for 0dB (0.775Vrms) out: approx. 200mV / 50Kohm

• maximum output level: 35Vpp

• output load impedance: 10K or higher

• signal to noise ratio (A-weighted ref. 0dB out): 100dB

• total harmonic distortion: <0.04% @1kHz / 47K load

• gain: x2 or x4(+ 6dB on)

• frequency response:

  • 7Hz to 150kHz (-3dB) @ x2 gain

  • 18Hz to 55kHz within 0.3dB

• channel separation: 85dB @ 0dB in

• input cross talk: < -100dB @ 0dB in

• AC power: 115V AC (100V to 120V)

• consumption: 16W max.

• dimensions: 11.4" x 6.5" x 2.7"

• weight (net): 6lb

Price: $478.65

HIGH-END CONTROL AMPLIFIER-K8021


Price: $ 306.30

Features

• no compromise high-end design

• 4 inputs

• exclusive, high finish, solid aluminum enclosure

• high quality ALPS volume potentiometer

• audio grade selected op-amps

• capacitor-less output coupling

• highly reliable reed relay input selection

• separate left and right input section

• programmable level adjustment: +6dB for each input

• headphones output

• output mute function (except phones)

• phono RIAA input section

• phono input can be configured as line input

• switchable monitor output (for tape, CDR, MD,...)

Specifications

• input sensitivity for 0dB (0.775Vrms) out:

  • PHONO: 3mV / 47Kohm

  • LINE: 200mV / 50Kohm

• maximum output level: 26Vpp

• signal to noise ratio (A-weighted ref. 0dB out):

  • LINE: >105dB

  • PHONO: 83dB

• total harmonic distortion: 0.003% @1kHz

• gain: x2 or x4 (+ 6dB on)

• frequency response:

  • 4Hz to 500kHz (-3dB) @ x2 gain

  • 10Hz to 100kHz within 0.3dB

• channel separation: 90dB @ 0dB in

• input cross talk: < -100dB @ 0dB in

• headphones output: 250mW max. @ 32ohms

• AC power: 115V AC (100V to 120V) or 230V AC (220V to 240V)

• consumption: 6W max.

• dimensions: 11.4" x 6.5" x 2.7"

• weight (net): 4.8Lbs

INTEGRATED MONO MOSFET AMPLIFIER-K8040

Features

• no compromise high-end design

• ideal to place next to the speaker (short wires to the speaker)

• auto-power on possibility when input signal is sensed

• auto-standby function when no input signal is sensed

• exclusive, high finish, solid aluminum enclosure

• high quality D-MOS IC output stage

• total of 40.000µF power supply capacitors

• relay-less speaker DC protection

• Real Clipping distortion indication

• power output level indication with backlight

• bypass output to drive bi-wired speakers using separate amplifiers

• double overheating protection with LED indication

• high grade speaker and input connections

• overload protection

Specifications

• input:

  • input sensitivity for maximum output: 0dBm (= 0.775Vrms)

  • input impedance: 15Kohm

  • minimum auto switch on voltage: 5mVrms

• output:

  • maximum RMS output power 4ohm: 90W

  • maximum RMS output power 8ohm: 70W

  • dynamic RMS output power in 4ohm: 125W

  • minimum load impedance: 4 ohm

  • damping factor (ref. 8ohm 100Hz): > 1000

• audio:

  • signal-to-noise ratio (A-weighted ref. max. out): >105dB

  • total harmonic distortion: 0.003% @ 1kHz ref 1W

  • frequency response: 9Hz to 120kHz (-3dB) in 50W

• power requirements:

  • AC power: 115V AC (110V to 120V) or 230V AC (220V to 240V)

  • consumption: 100W max.

• dimensions: 11.4" x 6.5" x 2.7"

• weight (net): 7.5 Lbs

Price: $333.75