THE 1492 is an all tube stereo power amp for electric guitar. A couple of 12AX7, a couple of 7025 and four 5881 provide an output power of more than 65 W for each channel. The preamp/driver section features a particular circuitry, developed by ADVANCE TUBE TECHNOLOGY, which allows the tubes to release a powerful sound with an excellent tone.

Details

THE 1492 allows significant variations in tone, thanks to its three different configurations: Pentode, Ultralinear and Triode. These three modes place the active elements of the power amp at different steps in the dynamic range, enabling the player to obtain tonal variations witch can be very hard to achieve using only the preamp tone controls. The Pentode configuration displays a powerful and aggressive sound, with a particular shape and attack, which makes it the best setting for every situation in which the guitar plays the biggest part ( rock, metal et sim. ).
The Ultralinear configuration offers a cleaner and more linear sound, even though maintaining the same thickness as the Pentode.This is great in those situations where the player has to compromise between power and tonal colours ( fusion, jazz-rock, pop, funky ).
The Triode mode is particularly suited for music styles where nuances and warmth are more important than power: blues, jazz, new age.
The three operating modes can be selected by the two buttons on the rear panel.The active mode is visualized on the front panel.

THE 1492 has two different presence controls:

- Presence A, manageable by a single control on both channels, is a traditional cut operating on the final stage
- Presence B, also manageable by a single control for both channels, operates on the driver stage and provides a more effective cut.

Presence B can be managed by a pedal or a MIDI switcher.
THE 1492 has a choice of two tube fan speeds: a high speed for the continuos use with high powerrange and a slower and noiseless speed, indicated for particular situations where the noise of the fan could affect the sound.
On the front panel we find the separated volume controls for channels L and R, the stereo controls for Presence A and Presence B, a power button, two separated stand-by buttons for the enabling of the two channels, a led relating to Presence B, a led indicating fan speed and three leds indicating the operating modes.
On the rear panel there are the stereo/mono inputs, 4, 8 and 16 ohm outputs for the connection to the speaker, a 600 ohm stereo line output for D.I. connection, a connection to the switcher for Presence B, separated fuses for the two final stages, a boost driver selector, a ground lift selector, a fan speed selector, two selectors for the three configurations
and a power input, with enclosed fuse and a spare fuse.

Front view

Rear view

Technical specifications

size : 2x 19" rack units
depth: 380mm
line fuse : 5 x 20 rit. 5 A
input impedance : 50 Kohm
weight : 17 Kg anodic fuses : 5 x 20 rit. 1.6 A
output impedance ( POWER OUT ) : 4 , 8 , 16 ohm
power supply : 230 Vca 50 Hz
output power : 65 + 65 W rms
output impedance ( LINE OUT ) : 600 ohm
max power consumption : 400 W