Jas-Audio BRAVO 3.1 - Manual (Page 6)

Features
ƒ Single-end Pure Class-A circuitry offers harmonic purity and sonic transparency.
ƒ Monoblock configuration reduces crosstalk noise (in which a signal disrupts another
signal in an adjacent circuit; Signal mix partially and confuse one another).
ƒ
Selected and matched 2A3, 805 and 6J4P tubes
ƒ Can be switched between Integrated amplifying mode and Power amplifying mode
ƒ Separate wide-band audio power and output transformers, and the application of 3
chokes to regulate current flow at different levels of frequency response.
ƒ Additional internal damping material for added control of mechanical resonance
ƒ 4 and 8-ohm output impedance taps for optimum speaker impedance matching
ƒ Bravo series tube amplifiers are built with point-to-point master handcraft soldering
ƒ Circuit structure inside the chassis is of a combination of different circuit boards
that serve different functions. All separate boards are integral parts of the entire
circuit, and are connected with internal wiring welded with uniform and firm
welding points.
ƒ Factory pre-set voltage operations with fuse protects amplifier circuit in case of
current overload.
Running-In Period
The tubes, capacitors and the output transformers take approximately 100 hours of music playing to
fully settle in for peak performance.
Small imperfections in the tube surfaces will ‘boil off’
during the break in period as well. The amplifier will sound good right out of the box but it will
improve as break-in occurs. After the first couple of hours you will notice increased depth and tighter
bass. This break-in phenomenon is true of most high performance audio amplifiers
.
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