Cary Audio Design CAD 211 AE - Manual (Page 8)

Interconnect Cables
Signal input connection is made via the RCA input jack on the rear of the amplifier located next to the
output binding posts. The input interconnect cables from the output of the preamplifier can be any length
your installation requires. A shielded high quality interconnect cable is important to reduce chances for
hum or interference. Ask your Authorized Cary Audio Design audio dealer for advice.
WARNING!
Page 10 shows correct tube placement positions, 300B tube bias settings and ‘Cat Eye’ tube
brightness adjustment. Page 11 shows 300B tube pin configuration. FAILURE TO INSTALL THE
TUBES CORRECTLY WILL DAMAGE THE UNIT. Watch the tube pins carefully on the 300B tube
during installation as it is possible to force the tube to plug in ‘wrong’ during installation. The
300B tube has no ‘safety key’ center pin on the tube to prevent incorrect installation. It has two
large pins and two slightly smaller pins. Please look carefully at the tube pins and the tube
socket holes to note the two different size connections prior to installation. Incorrectly
plugging in the 300B driver tube will possibly damage the amplifier and is not covered by the
manufacturer’s warranty.
OPERATION ________________________________________________________
Your new amplifier is ready for operation after the speaker cables, interconnect cables and the tubes have
been installed.
On-Off Power Switch
Push the AC toggle switch toward the rear, to the “ON” position. The 6SL7 input tube, 6CA7 phase
inverter, 1629 Cat Eye tube and the 300B driver tube will light up in this setting.
Standby Toggle Switch
Push the toggle switch toward the rear of the unit to operate. The installed output tube will light up.
Break 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 period is true
with most high performance audio amplifiers.
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