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ETAPA DE POTENCIA
2 X 40 W EN CLASE A |
Sugden Audio is pleased to
introduce the new Sapphire FBA-800
Pure Class ‘A’ Stereo Power
Amplifier which will further
enhance Sugden’s standing and
reputation amongst discerning
music lovers.
Sugden’s main objective in
developing the FBA-800 has been
musical performance coupled to a
practical user interface, pride
of possession and product
longevity.
The market trends for new and
fashionable technologies have
not been ignored and the FBA-800
has been developed to complement
and present the user with the
very best euphonic experience.
As with all Sugden Products they
are designed and manufactured by
Sugden in its West Yorkshire,
England premises. The use of
through hole as opposed to
surface mount components, where
possible, enhances product life,
performance and reliability.
Sugden has extensive experience
in Class ‘A’ amplification and
overwhelming belief in the sonic
advantages of Class ‘A’
operation.
The FBA-800 is a, Floating
Bridge Power Amplifier operating
in Pure Class ‘A’ output mode.
Power output is set at 40 watts
/ channel, the unit’s toroidal
transformer is rated at 350va.
The Amplifier has the input
facilities of: Balanced Input or
Phono/asymmetric input, (both
stereo pairs) Output is through
a Stereo pair of Speaker Binding
Posts.
Selected optional facilities
are:
-
Input sensitivity: this can
be reduced in one step by
-6dB. This allows the user
to adjust the balance/
matching of the Audio, chain,
i.e. PreAmp – Power Amp,-
Loudspeakers. The
sensitivity is selected by
Push Button, located on the
front Panel.
-
Balanced or Phono/RCA input:
is also exercised by a Push
Button on the front Panel.
The FBA-800 Power Amplifier is a
Stereo, Class A amplifier
operating in the Bridged Mode
with the Output earth Floating.
Each channel consists of two
amplifiers working as voltage
amplifiers driving an output
stage of Bridged Power
transistors. The advantages are
a low noise floor, better power
output relative to the voltage
rails (x2) and with the fixed
current of the Class A mode, low
output impedance and better load
tolerance. The Amplifier has
been designed for modern high
efficiency loudspeakers.
The Power amplifier is D.C.
coupled, with a servo lock,
ensuring excellent low frequency
detail. For safety purposes the
amplifier includes a d.c.
protection circuit. This circuit
is statically switched using
extremely low impedance Mosfet
switching devices. This circuit
also soft switches the Power Amp
On and Off.
The power supply is a low
impedance design with a single
custom made bi-filar wound
transformer, with four separate
windings, The main smoothing
capacitors for the output stage
are specially developed for
professional audio applications
with excellent ripple
characteristics and long life.
The Four power transistors per
channel in the output stages are
multi emitter devices with an
output capability of 26 amps per
device.
The FBA-800 operates in the full
balanced mode from the input of
the unit to the output. This is
accomplished by using the two
amplifiers per channel in the
balanced mode. For people who
want to experience all the
emotions of music this Amplifier
is set completely in Class ‘A’.
No compromise has been taken
with the build quality of its
electronic circuitry, electronic
components, or case work. It
includes gold plated circuit
boards, and high quality
internal silver wiring all
designed to give long life and
the ultimate musical
performance.
It is always exciting when a new
project reaches the performance
stage and the FBA-800 amplifier
through its development has
continued to astound and excite
through thousands of hours of
tuning and development. The
finished product is a precious
link to Simply More Music.
Especificaciones:
|
Entradas |
Estéreo de nivel de línea
Estéreo balanceada |
|
Salidas |
Pareja de bornes de
conexión par altavoces |
|
Selector de
ganancia en el panel frontal |
Atenuador de -6 dB en la
entrada |
|
Selección de
entrada en el panel frontal |
RCA o XLR |
|
Sensibilidad
de entrada |
735 mV para toda la salida |
|
Potencia de
salida |
40 W a 8 ohmios con ambos
canales funcionando |
|
Respuesta de
frecuencia |
20 Hz - 80 kHz +/- 0,1 dB |
|
Ancho de banda |
6 Hz - 113 kHz @ - 3 dB |
|
Relación
señal/ruido |
>96 dB |
|
Peso bruto |
25 kg |
|
Dimensiones |
430 mm de ancho x 206 mm
de alto x 460 mm de fondo |
|
Datos
studio-22.com
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