THE NBS UNIVERSAL II POWER AMPLIFIER
Universal application: The Universal
II amplifier may be used on any AC mains service worldwide without any settings
Universal compatibility: The
Universal II amplifier is compatible with any source equipment and any
Universal enjoyment: The Universal
II amplifier is easy to set up, is not fussy to use, and is audibly
transparent. You can enjoy the music without concern for the apparatus.
The unit is derived from the
original Universal Power Amplifier, which is still available. Here we bring you
the same philosophy and performance at a lower power level, lower cost and
smaller physical size.
The entire circuitry of the NBS
Universal II Power Amplifier uses high speed switching techniques. The AC Mains
input is power factor corrected which reduces harmonic contamination of the AC
mains by the amplifier. It also improves the efficiency with which the
commercial electric power is utilized. This is not done by very many amplifier
manufacturers in high-end audio because it is deemed too difficult. It is
nevertheless very desirable. NBS has incorporated power factor correction is
our power amplifiers for over 14 years.
The AC mains input is protected by
a magnetic circuit breaker which is also the main power switch. A
high-performance NBS AC mains cable is provided with the unit.
The DC converters operate with zero
current transitions further
preventing the generation of electromagnetic interference. The output of the DC
converters is tightly regulated for all conditions of AC mains voltage and
power output. Very few manufacturers attempt this because it is difficult as
well as expensive. However, imperfection of the DC voltage supplied to the
amplifier is a first-order source of error. There is no solution but to treat
the power system with the same care as the audio system. We have done that.
The balanced and single-ended
inputs are separately buffered and summed, so that they may both be used if
Two sets of output terminals are
provided as a convenience to facilitate bi-wiring.
We don’t spend much time trying to
describe the sound of the amplifier. What you hear is governed by what you feed
into it. Always transparent, powerful when required.
AC Mains voltage (without adjustment): Nominal
100-240 VAC, 50-60 Hz
AC Mains power factor at max output: >.95
Power output: 180
Watts/8 Ohms, 360 Watts/4 Ohms
Permissible load range: Any
load > 1 Ohm
Frequency range: 4
Hz – 35 kHz
Voltage gain: 26
dB (2V input for rated output)
(141 mV for 1
sets: Binding posts
(406mm) Deep plus connections
(130mm) High including feet
35 lb. (16 Kg)
Accessories: 2-6 FT. BLACK L;ABEL II+ A/C CABLES