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The
A3500-SS version developed by
Stones Sound Studio |
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The Altitude
3500 is an Integrated Valve Amplifier featuring
a blend of quality components and modern design
techniques applied to valve technology to
achieve high definition and wide bandwidth with
low noise and low distortion for faithfully
amplifying analogue sound from today's'
demanding digital & analogue mediums.
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Direct coupling techniques
on the Double-Triode input stages to
improve signal transient response
resulting in extended bandwidth of 10Hz to 90KHz |
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Wide bandwidth audio
output transformers couple the Electro-Harmonix
EL34 Class A/B pentode output valves to the
speakers. |
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Class A/B
Pentode Output using EL34 Valves |
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All Valves are
Electro-Harmonix
select on test |
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Output
Valves are Matched pairs, factory bias adjusted |
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Stainless
steel heat shields improve over-all efficiency
redirect heat away from Main power
transformer which improves PSU effficiency
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High
quality M " capacitors used in inter stage
coupling , decoiplig |
Output valves are all bias matched.
 Each
EL34 valve has been tested, matched in pairs, then
custom installed into the A3500-SS. Internal bias
adjustments have been factory made specifically to suit.
The A3500-SS valves are then removed and individually
packaged for transportation. Therefore each EL34 Valve
is labelled with the appropriate socket number to aid
installation.
Hand selected high quality electrolytic and
non-electrolytic capacitors are used in both the power
supply and in critical signal areas to improve the
midrange definition and top end transients with the
added benefit of long-term reliability and tolerances.
Extra attention to internal wiring positioning, use
of OFC cabling, gold-plated relay selectors, among other
details, all combine to enrich the listening experience.
The A3500-SS is beautifully
finished in 7mm thick premium quality brushed aluminium.
 The
stainless steel panels between the mains power
transformer and output valves reduce the transformers'
running temperature and shield the output valves
improving over all amplifier efficiency.
Gold plating is used where possible for long-term
reliable connections. This includes all valve sockets,
audio connections and audio switch contacts. We
recommend the use of high quality interconnects and
speaker cables to enable the A3500-SS to reproduce
uncompromised sound quality from your audio equipment
and speakers.
The excellent blend of components and circuit design
topologies used in this amplifier offer long-term
reliability and also enable very tight fast clean low
bass performance normally not found in valve amplifiers
with a warmth rarely achieved by solid state.
Enjoy a new dimension in sound.
Russell Storey
STONES SOUND STUDIO
| Model |
Price
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| Fountek A3500SS Integrated Amplifier |
AU$1795-
|
Gallery:
Stone Sound Studio
[Independent
Testing]
SPECIFICATIONS
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CHANNELS: |
2 channel |
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INPUTS (x4): |
CD / TUNER /
AUX1 / AUX2 (1,2,3,4) |
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INPUT
IMPEDANCE: |
100K Ohms |
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INPUT
SENSITIVITY: |
375mV rms @
1Khz |
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OUTPUT POWER
8ohm |
35 Wrms @ 1
KHz 8ohm |
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(per channel) |
(32.50Wrms
0.63% THD) |
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OUTPUT POWER
4ohm |
30 Wrms @ 1
KHz 4ohm |
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(per channel) |
(31.13Wrms
0.63% THD) |
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OUTPUT CLASS: |
AB (push
pull) |
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OUTPUT: |
4 or 8 ohm
speaker load [ 0-4-8 ohms ] |
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T.H.D. |
0.63% @ 1KHz
(245Vac) |
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FREQUENCY
RESPONSE: |
15Hz- 50KHz
+/- 0.5dB |
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<10 Hz to >90
kHz -3dB |
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SLEW RATE: |
1.36V/µs
(1KHz Sq. wave) |
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DYNAMIC
RANGE: |
82dB/A ("A"
Weighted) |
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NOISE: |
-76.2dB at
full power |
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VALVES: |
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4
x EL34 Pentode output
Electro-Harmonix EL34-EH |
2 x 12AU7
Twin triode phase splitter
Electro-Harmonix 12AU7-EH |
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EL34 Output Valves are
matched pairs |
2 x 12AT7
Twin triode direct coupled
input
Electro-Harmonix 12AT7-EH |
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FUSE: |
240V 3.15A
[Fast 2AG] |
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CHASSIS: |
Silver in
Colour, 7mm thick Brushed
Aluminium |
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DIMENSIONS: |
350mm(W) X
190mm(H) X 320mm(D) |
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350x75mm Face
Plate |
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NET WEIGHT: |
18Kgs |
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GROSS WEIGHT: |
21Kgs |
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Instruction Manual