Jas-Audio BRAVO 1.1 LE PRE-AMP - Manual (Page 3)

Bravo 1.1 LE OWNER’S MANUAL
Introduction
Thank you for purchasing the JAS Audio Bravo 1.1 LE Vacuum Tube Pre-amplifier.
Exquisiteness of this rep-amplifier is accomplished by utilizing two boxes made of MDF
for accommodating the circuit and the power supply separately. Having installed with two
sets of chokes for regulating passage of high and low frequency signal flow, this amplifier
is successful in delivering smooth and vivid sound over the entire frequency range in signal
amplification. Moreover, a balance between definition and tonal expression can be
achieved. Two pieces each of 12AX7 tubes and 12AT7 tubes are fixed on the vibration
damping acrylic boards next to the main circuit board. Current rectification is done by the
5Z4P tube inside the power supply box. Both cabinets are made of MDF laminated with
piano finish on Rosewood veneer. Materials used are ideal for eliminating vibration and
blocking of electro-magnetic interference to the circuit.
Gain Control Knob Volume Knob Selector
Preliminary
The circuit board together with components such as vacuum tubes and the power
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