Kenwood L-A1 User Manual

e VIG circuits
The power amplification system also uses voltage
interface gate (VIG) circuits which ensure a clean
source of power for your L-A1 free of impurities
such as ripples, load fluctuation, or other inter-
modulation distortion. From the point of view of
the power amplification system, this results in the
same benefits as would be gained from a far more
powerful power system.
e A heatsink design that separates the
final and driver transistors
The large-scale heatsink with a 7 mm thick base is
used in the power amplifier was designed, and
makes it possible to stand up to even loads of 2 Q.
By laying out the final and driver transistors
separately on both sides of the heatsink, it doubles
as a shield to prevent interference between the
large and low current systems.
e A high-capacity toroidal transformer
The Kenwood L-A1 uses a toroidal transformer that
gives off very little magnetic leakage and responds
well to load fluctuation. Combined with aluminum
electrolytic capacitors and with a capacity of as
much as 450VA per transformer, these transformers
give you all the power you need—and more.
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© Separated blocks for a sturdy, rigid
design
The cabinet of the Kenwood L-A1 uses a
frame design composed of 2 mm thick steel plates
held together with 4 mm screws for the kind of
rigidness you don’t often find. By making the
cabinet tough, we’ve created a sturdy, solid
foundation that assures you of a deep, rich sound.
By adopting a frame design where individual parts
are assembled together into a single cabinet, we
have been able to separate blocks such as the
main and subsidiary power units, the input unit,
and the power supply in order to prevent
interference between individua! components.
e A glass epoxy circuit board
In keeping with our aim of making the cabinet sturdy
and rigid, we have also used a glass epoxy circuit
board for the printed board of the Kenwood L-A1
amplifier. Glass epoxy offers excellent characteristics
and lasts for years. And as a material, glass offers
better rigidity than the phenol resins normally used
in audio equipment.
As a final touch, the board has been firmly fixed into
the frame with solid steel studs.
Other features
@ MC/MM dual-head equalizer
Phono cartridges come in either MM or MC types.
To make the best of both, the Kenwood L-A1 uses
a dual-head equalizer. Although dual head equaliz-
ers are gain-switching equalizer amplifiers, by of-
fering a dedicated first-stage for MM and MC
circuits, they give you all the benefits of a dedi-
cated equalizer amplifier.
® Quality machined and extruded parts
All parts, such as panels, knobs and jacks, etc. have
been either precision-machined or extruded to give
you sure contro! and the high degree of reliability
you need.

Kenwood L-A1 Specifications

General

Brand	Kenwood
Model	L-A1
Category	Amplifier
Language	English