HHB comm CIRCLE STUDIO MONITORS - Manual (Page 6)

Active & Passive
• Detailed, accurate and dynamic sound, both on
and off axis
• Tight, controlled low-end performance
• Accurate bass / treble driver time alignment
• 200mm (8") bass/mid driver with a unique,
injection moulded cone for increased dynamics
and minimal bass colouration
• Individually tested ferro-fluid cooled soft dome
tweeter
• Solid state, Polyswitch ® tweeter overload
protection
• Shielding antimagnets allow use close to video
and computer monitors
• Rigid, seamless ported cabinet, finished in
durable black paint
Active Only
• 120W LF / 70W HF integral amplifier pack
• Switchable inputs; either balanced XLR or
unbalanced RCA phono
• Push-Pull amplifier design for tight, controlled
low-end performance
• Power amplifier contains anti-thump on / off
circuitry
• Extra-large toroidal transformer for added
headroom and low hum field
• Individually calibrated, low Q Sallen and Key
active filters eliminate mid-band peaks, resulting
in a sound that doesn’t tire the listener, even
after long periods
• Long life smoothing capacitors
• Massive heat sink for effective heat dissipation
6
CIRCLE 5
Midfield Monitors
As part of a complete monitoring system, HHB
Circle 5 studio monitors will deliver the clean,
highly accurate sound required. Their reliable sound
output and wide flat frequency response makes
them suitable for the highest quality audio
monitoring applications. The Circle 5s feature a
solid state Polyswitch
® to protect the tweeter from
excessive input. Unlike other protection circuits
which limit power to the tweeter, affecting the
overall balance of the sound in a way which may not
be immediately obvious to the listener, the
Polyswitch
® in the Circle 5 cuts all power to the
tweeter and illuminates a red warning LED. After a
couple of minutes to cool off, the switch
automatically resets, having saved the tweeter
from overload and subsequent damage.
CIRCLE 5
KEY FEATURES
CIRCLEOP.QXD 5/4/00 5:03 pm Page 6