Bohlender Graebener 420-I Brochure
radia
S E R I E S
420i
P l a n a r R i b b o n L o u d s p e a k e r
T H E R A D I A S E R I E S
Offering all of the detail, resolution and transparency of our larger
520i, the Radia 420i loudspeaker is remarkable for both its performance and its value.
This beautifully-styled planar ribbon system features a 40-inch planar line-source driver
with a linear push-pull motor, which drives an ultra-light diaphragm above its passive
crossover point of 350 Hz. Handling the lower frequencies is a pair of high-powered,
long-throw mid-woofers, which cover frequencies down to the specified cutoff of 70 Hz.
The ideal loudspeaker for extended listening, the Radia 420i can be used as either a main
or surround speaker and is capable of filling medium to large-sized rooms.
Like its larger sibling the 520i, the 420i is also extremely adept at power handling,
accurately reproduces dynamic peaks and offers long-term reliability as well. Housed in
a custom, black-anodized aluminum tower with an MDF base, the Radia 420i is finished
p l a n a r t e c h n o l o g y
in a striking wear-resistant coating, which means it’s a speaker that you’ll be able to enjoy
for years to come.
Spirited. Articulate. Able to reveal low-level subtleties or deliver thundering effects.
The 420i lets every recording shine, whether it’s music or a soundtrack.
Flexible Exclusive line-source Radia planar technology produces a cylindrical sound
›
field, eliminating any unwanted mid and high-frequency floor and ceiling reflections.
Dynamic Accurately reproduces dynamic peaks at high power for realistic reproduction.
›
Lifelike Planar ribbon drivers provide amazing clarity, resolution and fidelity.
›
Critically acclaimed, the Radia 420i is a favorite among audiophiles and reviewers from
around the world.
T h e P o w e r o f C l a r i t y
P l a n a r R i b b o n L o u d s p e a k e r
58.875"
7.75"
13.75"
2.70"
17.57"
17.75"
58.875"
7.75"
13.75"
2.70"
17.57"
17.75"
radia
S E R I E S
420i
p l a n a r t e c h n o l o g y
The loudspeaker consists of an MDF enclosure, which houses the mid-bass
drivers and crossover components. An aluminum tower containing a modified
RD40 planar ribbon driver is attached to complete the speaker system.
Both the enclosure and base have a durable black coating. The planar driver
is finished with a black fabric grille and black anodized tower.
The crossover network divides frequencies between the mid-bass and planar
drivers at 350 Hz. The crossover is equipped for bi-wiring and is shipped with
removable shorting straps across the high and low frequency inputs.
The 420i is easy to drive with any high-quality amplifier or receiver. It also
features ample power handling and can be used in large-sized rooms for
either music or home theater applications. Though the 420i can be used
full-range, a high-quality subwoofer, such as the Radia 210i, is strongly
recommended for optimum low-frequency extension as well as additional
power handling.
T H E R A D I A S E R I E S
M A X I M U M P O W E R H A N D L I N G :
›
50-250 watts
F R E Q U E N C Y R E S P O N S E :
›
(-6 dB, half space)
70 Hz-20 kHz
R A T E D I M P E D A N C E :
›
4 ohms, bi-wirable:
(compatible with
8 ohm systems)
S E N S I T I V I T Y :
›
88 dB/1W/1m
D R I V E R C O M P L E M E N T :
›
40” push-pull planar
ribbon line-source
2 - 6.5” woofers
C R O S S O V E R F R E Q U E N C Y:
›
350 Hz
D I M E N S I O N S :
›
58.875” x 9.25” x 13.25”
base 13.75” x 17.75”
W E I G H T :
›
51 lbs.
F I N I S H E S :
›
Black
W A R R A N T Y :
›
Lifetime (limited)
3535 Arrowhead Drive · Carson City, NV 89706 ·
internet:
www.bgcorp.com ·
© Copyrigh t 2006 BG Corp. All rights res erved. Products, features and spe cications sub ject to change without notice.
phone:
775-884-1900 ·
email:
sales@bgcorp.com
toll free:
888-8PLANAR (888-875-2627)
03/06
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