Saturate & Clear, Good Shape
& High Quality
Comment on Music Space Time MUSIC-300B advanced Tang
I was impressed by the electronic tube amplifier of
Music Space Time in the first approach despite that
it is a new brand. In the second approach several months
later, I found the company has made improvement in timbre.
The company aims at pursuing musical representation,
which is really a lucky thing for music fans.
To audio fans, directly heated triode single-ended
output power amplifier occupies a special position and
has high price. MUSIC-300B advanced single-ended output
and integrated amplifier is a newly launched type of
such electronic tube. The 1st stage of the machine is
made by pentode 6J4P and has sufficient excitation voltage,
which belong to typical resistance coupling amplification.
The aim of taking triode 6N6¡¯s cathode output as impulse
is to achieve good resistance matching with end stage,
less non-linear distortion and sufficient driving force.
Here, the two triodes are not in parallel connection
but in direct coupling with the front stage, so the
timbre and analysis ability are in an ideal effect.
End stage output is made by directly heated power triode
300B-98 and adopts rated bias voltage, so its dynamics
will not be restricted. Since measures are taken in
the circuit, it can work stably. Little negative feedback
of circuit imposed enables the machine to have pleasant
timbre. Output transformer with high quality ensures
the stability and capability of the whole machine as
well as ideal sound. The special design of power circuit
provides the basis of good capability of the machine.
Actual fidelity output power of the machine is 8.5W¡Á2,
frequency response is 12-38000Hz-1dB, signal to clutter
ratio is better than 78dB, non-linear distortion is
less than 1%, input sensibility is 350mV, input resistance
is 100k¦¸, weight is 23kg and size of outer shape is
300B is famous for its delicate, smooth and transparent
sound, especially for its single-ended output. But due
to improper manufacture or design, there are shortcomings
such as weak low frequency and thin sound often arising.
I match MUSIC-300B advanced single-ended output integrated
machine with Triangle ¡°Celius¡± floorstanding speakers.
After audition of different kinds of music for long,
I get a general idea of the machine. The full frequency
is relatively balanced and transparent, vibrant, delicate
as well as smooth. The sound is saturate and full of
sense of air and magnificence. Saturation of its mid
frequency, flexibility of low frequency and fruitiness
of high frequency exceeds other similar machines, performance
of low and mid frequency in particular. The high frequency
is suitable for relaying various music and has excellent
musical presentation ability.
Due to various reasons, the price of 300B single-ended
machine is relatively high. 300B single-ended output
integrated amplifier of Music Space Time is sold around
RMB5, 500, which is over value taking its craft, materials
and sound quality into consideration. Also such price
is low among similar products. If you are intended to
purchase a directly heated triode single-ended machine,
it will bring you surprise.
Extracted from¡¶Audio & Video Front-Line¡·-34