Bose 301 Sonata Benutzerhandbuch - Seite 10

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uncovered

floors or scatter rugs, small amounts

of furniture, hard

walls) can be improved by the addition of rugs and heavy draperies,

which also serve to eliminate echoes and standing waves. For acous-

tically "dead"

rooms

(e.g., those with wall-to-wall

carpets, heavily

upholstered furniture, large amounts of draperies), furnishings should

be arranged so that speakers have unobstructed sound transmission

paths to the listening areas.

Finally, since no room

is acoustically

perfect, you are encouraged

to use your amplifier or receiver tone

controls to adjust the sound for your maximum

listening enjoyment.

5. TECHNICAL INFORMATION

SPATIAL CHARACTERISTICS

Asymmetrical Design for opti-

mum

stereo reproduction utilizing side wall reflections. A Direct

Energy Control for adjustment of ratio of direct to reflected sound

at high frequencies.

SPEAKER

COMPLEMENT

Woofer:

An 8-inch

high efficiency

design

optimized

for operation

in a moderate

size ported

en-

closure.

The high frequency

response

is uniform

to over 3 kHz

for maximum utilization of the Dual Frequency Crossover Network.

Tweeter:

3-inch high sensitivity design. This tweeter is designed

for performance

down

to 1400 Hz and has exceptionally smooth

and extended

high frequency

response.

The on-axis frequency

response

rises at high frequencies

to maintain

constant

total

energy.

Crossover

Network:

The crossover

network

utilizes a Dual

Fre-

quency design whereby the transition frequencies of the woofer

and tweeter are separated by over one octave. The network con-

sists of an inductor, two resistors, and a high grade film capacitor.

Computer

style wire-wrap

connections

are

used

for maximum

reliability.

Crossover

transition

frequencies

are

1400

and

3000 Hz.

MINIMUM

AMPLIFIER

POWER

— 10 watts rms into 8 ohms

MAXIMUM

AMPLIFIER

POWER

— 60 watts rms into 8 ohms

(for reproducing speech and music)

SIZE

— 17 inches wide by 10% inches high by 9% inches deep.

SHIPPING WEIGHT

—

Forty pounds per pair. The Model 301s

are packed

one

"Part

1" (left speaker)

and one

"Part 2" (right

speaker) per shipping carton.

6. CARE AND MAINTENANCE

The Model 301 has an attractive walnut vinyl veneer finish which may

be cleaned by wiping with a soft cloth.

The polyurethane

foam

grille of the Model

301

requires virtually no

care, although it may be vacuumed or dusted if necessary.

The

loudspeaker

and crossover

elements

of the Model

301 are de-

signed

for a long, maintenance-free

life. Used

properly,

the Model

301 should provide you with many years of enjoyment.

7. IN CASE OF DIFFICULTY

If you

suspect

a problem

with

one

of your

Model

301

speakers,

it is worth

a few minutes of your time to determine

whether the de-

fect is in your speaker or in some

other portion of your high fidelity

system.

IF ONE SPEAKER

SOUNDS

DEFECTIVE,

first disconnect the

speaker

that

is operating

properly

by disconnecting

the wire

from

the output

terminals

the rear

of the amplifier.

Next,

disconnect

the wire running

to the speaker

which

sounds

de-

fective and connect

it to the output

terminals

of the amplifier

channel which you are sure is operating properly.

If the speaker

now seems to be operating properly, the defect is in another part

of your hi-fi system.

IF THE TROUBLE APPEARS IN BOTH CHANNELS,

connect your

Model

301s to another amplifying source or high fidelity system

that is operating properly. If the trouble is no longer apparent, the

difficulty is not with the speakers.