•
Ground lift, on-off switches
•
Power-on indicator
•
Provision for remotely located volume controls
Description
The HA-6A is basically a 20 watt per channel stereo amplifier. Unlike a c
onventional power amp, however
, it has six headphone
outputs (stereo phone
jacks) on the front panel, each with an associated volume control. When
used for
overdubbing or
rehearsal, this provides more than adequate loudness in all
head
phones (even older low-impedance models), and allows each
musician to set hi
or her own comfortable volume level. When the overdubbing
is complete and the
musicians remove their
headphones, the HA-6A can power the tape
playback
through either (or both) of two sets of studio moni
tor speakers, selected by
press
ing front panel pushbuttons. Without the HA-6A, a separate amp would be needed for the studio speakers.
The HA-6A also features a convenient input level control on the left side o the front panel. A pair of yellow LED's
(one for each
channel)
light up
whenever
signal is present. Another pair of red LED's show an overload condition in
either
channel.
The Furman HA-6A's 20 watts-per-channel make it ideal as a low distortion headphone driver for the most critical listening
situations. While most headphone amps provide half a watt or less per headphone channel, the HA-6A's higher power can drive
headphones of any impedance to their full rated listening level, and do so with minimal noise and distortion. Its power capacity
is also just right for the small "cube" reference speakers used in most recording studios as a comparison with the main control
room monitors-it can power them without overpowering them. On the studio floor, a set of small monitor speakers driven by the
HA-6A can make a session progress more efficiently by giving the musicians a chance to hear a playback without needing to
disconnect themselves from their equipment and walk into the control room. With the HA-6A, both headphones and monitor
speakers are free of the hum that can occur when using an amplifier not equipped with a toroidal transformer.
The HA-6A is fully protected against thermal overload, and it can withstand a short circuit on any or all outputs for an
indefinite time without damage.
Options and Accessories
Option: Model HA-6AB:
Provides XLR connectors for balanced inputs, and also standard 1/4" phone jacks, which can be
either balanced or unbalanced, depending on whether a stereo or mono phone plug, respectively, is used.
Accessory: Model HR-2 Headphone Remote Station:
A compact, unobtrusive box that clamps to any mike stand, providing
two headphone jacks, each with its own volume control. Twelve or more HR-2 boxes may be connected to a HA-6A using
standard microphone cables, depending on the impedance of the headphones used.
