Very Desirable Classic Niko Alpha 450 DC Power Amplifier:

                                                  Stereo amplifier 220 watts:

This very, very nice classic Amplifier has variable analog controls on the back (can be used without a pre amplifier), has speaker A & B (can drive two sets of speakers at the same time or independently  and even has a head phone input and beautiful flashing output meters.

Serb sound and features, recently serviced and sounds really good serious fun to be had in your system and looks FAR better in person !

                  Uses FET output devices and they sound really great !

                            We have two "sold each"  (see pictures).

                      It sounds so good I just might keep one for my self !

                                            Serial # 100006 & C4811956

               SIMILAR TO: Nikko Alpha 440

Stereo Power Amplifier (1980-81)

(1 review)

Description:

The Alpha 440 is Nikko's most highly regarded
Direct Current Power Amplifier with its latest technology in the art of
electronic circuitry. This Alpha 440 comes with numerous distinctive
features. It was specifically designed for professional usage in mind,
however, it can be easily adapted to home and studio use.

The output power level indicator utilizes 13 LED (Light-Emitting
Diodes) per channel. It will continuously indicate from 0.01 to 200
watts range.

Because this amplifier is in concept a DC design, by changing the
switch to the DIRECT mode, you can enjoy the ultra-low frequency
response, no-phase shift, function of the superb tone quality.

The Headphone jack feature means that instead of receiving the sound from the speakers you can monitor the sound through headphones.

A and B two speaker system combination is possible. The selection is
dependent on the manipulation of the selector switch on the panel. The
internal relay governs the tone quality and the depreciating damping
factor, keeping these at a minimum.

The voltage amplification section is a three stage balanced differential amplifier circuit. Dual FET (Field-Effect Transistor) low distortion rated with low drift design is incorporated in the initial stage.

The newly developed power transistor with its greater power
dissipation and higher frequency amplification possibilities are being
used in pairs in parallel. Irrespective of the unit, the fast acting low
distortion switch make-up the amplifier.

Advanced circuitry is incorporated to attenuate the amount of
distortion during switching. No matter how excessive the input power of
the music might be, the output power transistor will not cut off and the
music is faithfully reproduced.

A Direct Current Servo Circuit suppresses unnecessary DC drift in the
amplifier. DC servo circuit's main function is to stabilize the DC
amplifier.

The speakers and the amplifier unit will be protected from damage if
and when there is a malfunction due to DC leakage or excessive
electrical current flow. The LED will light up on the panel under such a
condition.

The input power sensitivity can be adjusted separately for each left and right channels at the rear panel respectively.

Specifications

Power output: 220 watts per channel into 8Ω (stereo)

Frequency response: 5Hz to 100kHz

Total harmonic distortion: 0.008%

Damping factor: 150

Input sensitivity: 1V

Signal to noise ratio: 115dB

Dimensions: 482 x 182 x 460mm

Weight: 21.5kg

Downloads

service manual  -

instruction/owners manual  - ferusso

                                     <: ====================== :>

It
is best to call David and to visit my new web site @ www.weinhartdesign.com and CALL with questions in Los Angeles Showroom
from 11-4PM @ 310-472-8880 or on my cell after hours and weekends from 10-10 @ 310-927-2260 or e-mail me directly at [email protected]


Weinhart
Design has lots of other items new and used and if you’re in Los

Angeles or visiting please accept my invitation to experience our Audio Showroom (BY APPOINTMENT) and please visit our web site @ www.weinhartdesign.com

We are always interested in purchasing quality Audio and Video items, CD
& LP collections and most quality trades are welcomed.

All sales out of California are California State Sales Tax exempt.
California 9% State Sales Tax applies for items picked up or shipped to a
California address.

We accept payments by Bank Wire Transfers without fees and is the only
form of payment on all sales out of the U.S. and Canada. We prefer this method
of payment and also makes shipping to addresses other than billing agreeable.
VISA, MC and Papal are gladly accepted within the U.S. and Canada as long as
the charge is approved and shipping to the billing address on record and adds
3% to cover costs.

Please call me directly in my world class showroom in Los Angeles

weekdays 11-4 @ 310-472-8880 or on my cell including weekends from

10-10PM @ 310-927-2260 and I can answer your questions and help you with

all of your new and pre owned needs.

Making Audio Systems better one system at a time,

 David Weinhart
Weinhart Design, Inc.
President & CEO

e: [email protected]
www.weinhartdesign.com

The Audio and Video Expert

2337 Roscomare Road, Studio #1
Los Angeles, California 90077

Showroom) 310-472-8880 Weekdays 11-4PM
Cell) 310-927-2260 10-10 Los Angeles time