PSB Alpha B1 Manuel utilisateur

Owner's Manual

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Thank you for your purchase. The speakers

ourAlpha series are designed to

deliver high performance

many uses, and we hope they add much enjoyment

to your listening life.

SIMPLE STEPS FOR A

QUICK

START:

A. Be sure power to your amplifier/receiver and other electronics is off before

making connections.

B. Install bumpers, adjustable levelers

spikes

the feet.

Position your main speakers, as symmetrically as possible, at a

comfortable listening

distance-slightly

closer to each other than they are

to you. (For surround speakers, see later instructions.)

Using standard 18 gauge (1.0mm dia) lamp wire

better, connect the

Red (positive) terminal on each channel of your amp/receiver to aRed

terminal post on that channel's speaker, and the Black (negative) terminal

to aBlack terminal post on the speaker.

Setting the volume low beforehand, turn on your associated equipment,

find acomfortable listening

volume-and

enjoy your favourite audio and/or

video selections.

After you have settled

with your speakers, read through this booklet. Be

sure to read "Protecting Your Investment."

II. MORE ON

SPEAKER

POSITIONING

A. Main

Speakers:

The three factors to adjust according to your own tastes-keeping

mind that

you are the judge and the one(s) to be satisfied-are:

The

closer

you

place

speakers

the

boundary

surfaces

your

room,

the

greater

the

proportion

bass

their

overall

sound.

This is

due to the enclosing, "focusing" effects

nearby surfaces on longer-

wavelength (lower) frequencies. Positioning the speakers near the

intersection of two surfaces (wall and wall, wall and floor, or wall-and

ceiling) will produce more apparent bass than placement near asingle

surface. The greatest proportion

bass is delivered by placement near

three intersecting

surfaces-in

aroom corner near the floor or ceiling,

where the convergence

the two walls and the floor/ceiling produces an

amplifying effect that is abit like that

amegaphone. And the least bass

comes from placing aspeaker away from all boundaries. Your own tastes

should decide what proportion

bass response seems right

your room.

Distances

speakers

from

the

walls

can

make

great

differences

the

number,

strength,

and

particular

frequencies

secondary

reflections-changing

frequency-balance, sonic spaciousness, and

definition. Most listeners prefer their speakers at least afew inches from

all walls, but the choice

yours to determine

listening.

Small

changes

positioning

may

make a

big

difference

sound

quality. Because

the varying relationships

the dimensions

aroom

and their relation both

where you place the speakers and where you sit,

the wavelengths

sound and their interaction both with you and with the

room can vary agreat deal. There can

sharp increases or decreases

the relative loudness

different frequency bands, greatly amplifying or

almost nullifying whole ranges. Since Alphas are small and easy to

position, it's easy to experiment with small, incremental changes until you

are satisfied.

Ideal speaker placement:

5.1

All distances are equal

IT]

Ideal speaker placement:

7.1

Surround

Speakers

Begin with the knowledge

the above factors about main speakers. Then

modify things as needed for your convenience and the surround effect that

works best for you. If you want maximum localization and definition, you

probably will want to aim the speakers toward your seating area, both

horizontally and vertically. If you prefer the surround effect to

diffused rather than pinpointed, aiming the speakers somewhat away from

your ears probably will

more satisfying.

You

may want even

place them

to reflect their sound off the sides or rear

you room rather than have them

radiate toward you. Side-wall positioning, slightly behind you as specified

our Quick Start tips, is preferable to most listeners, but rear-wall placement

can work well-especially for bouncing the sound off the side walls.

About

Wall-Mounting

for

Surround

and

Other

Uses

The Alpha's rear baffle incorporates akeyhole slot for direct wall-mounting.

There are also

x20 brass inserts and screw bosses which can easily

secure speakers to OmniMount, Vogel's VLB

50NLB500

and other brackets.

III. ADDITIONAL DETAILS

CONNECTING YOUR SPEAKERS

Important:

Always

turn

off

your

electronic

equipment

before

connecting

speakers.

you

don't,

severe

damage

equipment

and/or

your

ears

may

result.

18-gauge

1.0 mm dia (lamp cord)

16-gauge or 1.3 mm dia (heater cord)

14-gauge or 1.6 mm dia

12-gauge

2.0 mm dia

B. Selecting Speaker Wire

We recommend the following gauge

standard two-conductor wire for the

wiring distances specified; if you prefer you can use thicker (lower-gauge)

wire.

Under 25 ft

«7.5m)

25 -50 ft (7.5-15 m)

50 -100 ft (15-30 m)

Over 100 ft (>30 m)

Connecting

Phase

Connect speakers identically to your amplifier

receiver on each

channel-Red

amp/receiver terminal to Red speaker terminal, Black to

Black.

This will ensure that the diaphragms

the speakers on both channels

move forward and backward together ("in-phase"), rather than in opposition

("out-of-phase"). In-phase connection provides maximum clarity and bass,

while out-of-phase connection results

frequency cancellations and

produces thinner and less distinct

sound-with

less bass, vague vocal quality,

and no solid centre image.

help insure the proper connection, the two

separate conducting wires in astandard two-conductor speaker cable are

coded

one way or another to be distinguishable from each other. (The

jacket

one wire may be ribbed

marked with "+" signs, or one wire under

the insulation may be adifferent colour from the other.) Use this wire-coding,

together with the amp/receiver and speaker colour-coding, to be sure you are

connecting the same wire

agiven pair to alike-coded terminal at both ends

your connection.

Right

Speaker

Left

Speaker

....

Amplifier

Output

Right

C'.

Wiring in Phase Between Speakers and Amplifier

Be sure all wiring terminals, are tightened firmly secure, but be careful not to

over-tighten and damage the connectors.

Bi-wiring and Bi-amping (Alpha

only)

The metal jumper strap that connects the two sets

terminals on some

our

speakers is removable. This allows you to connect either separate cables to

the separated woofer and tweeter terminals ("bi-wiring") or separate amplifiers

("bi-amping"). With Bi-Amp hookup you must use either identical amplifiers or

amplifiers adjusted to have the same voltage gain. Consult your PSB dealer

for further information. (Illustrations are for one speaker hookup only). With

single cable inputs, the jumper straps must be

place and both sets of

terminals tightened firmly.

SPEAKER

Amp

Output

Mid/High

Woofer

Amp

Output

(Labeled)

'---'f-----I

Woofer

(Labeled)

r---I+

Mid/High

I~L..-~_~_i~_+--,

u...

_output

Bi-Wire Hookup Bi-Amp Hookup

Bi-wire and Bi-amp Wiring between Speakers and Amplifier

IV.

PROTECTING YOUR SPEAKERS

For full, year-after-year enjoyment from your speakers, you should respect

their limits. They will produce room-filling volume

average-sized

rooms-and

handle peak momentary levels at those volumes without audible

strain. But avoid louder-than-life playback of music or movies, especially

large rooms. Even the most "bulletproof" speakers can

damaged by

excessive volume levels, especially for long periods.

When listening to music or movies at very loud volume, you shouldn't

turn up bass or treble all the way or close thereto. This sends

tremendously increased, disproportionate power into the speakers, and may

well damage them. Some loudness compensation ("Loudness") controls,

which boost both bass and treble, can also

troublesome at high volume.

They are intended only for low-volume listening.

C. Finally, you should be aware that when amplifiers and receivers are

pushed to their limits to produce excessive volume levels, they are

driven into "clipping" and can do severe

damage-especially

tweeters. Often, the damage

done by underpowered amplifiers, which may

reach their limits very soon. When such units begin to "clip" the audio

waveform, they may generate high-frequency "spikes" of tremendous power.

More tweeters have probably been destroyed by this phenomenon than any

other. If using your speakers at loud levels, listen carefully for any sign

harsh, garbled midrange and diminishing

intelligibility-and

turn the

volume down right away if you detect it.

NEVER TURN UP THE VOLUME ALL THE WAY TO SEE

HOW

LOUD

YOUR SYSTEM WILL PLAY!

Recommended

Power

We recommend amplifiers and receivers rated from a range

20-150 watts

with our compact systems, 20-200 watts with our tower models. For playing at

consistently room-filling volume, aminimum

50 watts is usually agood

idea. As just indicated

the paragraph above,

wary

driving low-

powered amplifiers to their limits.

We recommend amaximum

80-150 watts for sustained program

material-as,

for instance, with organ pedal tones

long duration, or minutes-

long subterranean special effects

movies.

aware amplifiers with equal power rating may not play equally loud. Those

with higher dynamic power ratings, better satisfy the power requirements.

Some have protective circuitry that curtails power available

demanding

situations.

Cabinet

Care

Cabinets have varying materials and finishes, including wood veneers, vinyl,

anodized aluminum and high gloss "poly lacquers" and should be treated as

you would furniture with similar finishes. Dust lightly with asoft cloth; avoiding

abrasives. If necessary, wipe carefully with acloth slightly dampened with

glass cleaner to remove heavy soil.

Grilles

and

Ports

Alint brush does agood job

cleaning grilles. Removable grilles can

taken off and vacuumed if you prefer. If need be, you can use alint brush to

clean ports. Avoid touching speaker diaphragms. Particularly, pushing

the

domes will permanently damage tweeters.

CASE OF PROBLEMS

A. Lower power if aspeaker begins to sound distorted, or seems to be missing

certain frequencies, to check first to see whether playing at somewhat lower

volume seems to clear up the problem. As we noted under "Recommended

Power," it can be especially important to turn down the volume right away if

you have pushed alow-powered amplifier or receiver past its comfortable

limits.

B. Isolate the problem to the electronics or the speakers and, if the speakers, to

specific speakers. Interchange the speaker wire connections on your amplifier

or receiver between channels, so that the left speaker is connected to the

right channel, or vice versa. If the problem shifts to the other speaker, the

problem is not

the speaker but

the electronics.

Another

component-or,

very often, acable or connection problem between

components-may

be at fault. If the problem stays

the same speaker,

irrespective

the channel to which it's

connected-and

after changing the

connecting

wire-chances

are the speaker itself probably needs service.

See your dealer if you require service. PSB dealers are equipped to handle

almost all problems. If you have moved since your purchase, the nearest

authorized PSB dealer should be able to help you. If the problem

not

resolved, please contact us, providing the Model name, Serial Number, date

of purchase, dealer name, and afull description ofthe problem.

We appreciate your purchase, and hope this owner's guide helps you enjoy

the exceptional satisfaction that PSB speaker systems have to offer.

wish

you many years of enjoyable listening!

the

end

its

useful

life,

this

product

must

not

disposed

with

regular

household

waste

but

must

returned

collection

point

for

the

recycling

electrical

and

electronic

equipment.

The

symbol

the

product,

user's

manual

and

packaging,

point

this

out.

The

materials

can

reused

accordance

with

their

markings.

Through

re-use,

recycling

raw

materials,

other

forms

recycling

old

products,

you

are

making

important

contribution

the

protection

our

environment.

Your

local

administrative

office

can

advise

you

the

responsible

waste

disposal

point.

Notes on environmental protection

VI.

SPECIFICATIONS

Alpha

LR1

Compact

Monitor

FREQUENCY

RANGE

(Anechoic

Chamber)

Response

Axis

@00±

3dB

90-21,000Hz

Off

Axis

30°

1.5dB

90-10,000Hz

cutoff -

10dB

85Hz

Alpha

CLR1

CenterlMonitor

90-21,000Hz

90-10,000Hz

78Hz

Alpha

Compact

Monitor

65-21,000Hz

65-10,000Hz

55Hz

SENSITIVITY

(1W

(2.83V)

1m,

IEC-filtered

Pink

Noise,

C-weighted)

Anechoic

Chamber

85dB 86dB 89dB

Typical

Listening

Room

87dB

88dB

91dB

IMPEDANCE

Nominal

60hms 8

Ohms

60hms

Minimum

Ohms

INPUT

POWER

(RMS,

Clipping

10%

Time)

Recommended

15-80

Watts

15-80

Watts

10-90

Watts

Program

Watts

ACOUSTIC

DESIGN

Tweeter

(Nominal)

(19mm)

Aluminum

Dome

Aluminum

Dome

Aluminum

Dome

with

Ferrofluid

with

Ferrofluid

with

Ferrofluid

Woofer

(Nominal)

'j,"

(90mm)

2x 3

'I,"~

(90mm)

5'I."

(130mm)

Injection

Molded

Metalized

Injection

Molded

Metalized

Injection

Molded

Metalized

Polypropylene

cone

with

Polypropylene

cone

with

Polypropylene

cone

with

Rubber

surround

Rubber

surround

Rubber

surround

Crossover

3,000Hz,

Internal

Volume

0.07

(2.0

liters)

0.10

(2.8

liters)

0.29

(8.0

liters)

Design

Type

Acoustic

Suspension

Acoustic

Suspension

Bass

Reflex

Sealed Sealed

';2"

(40mm)

Rear

Port

SIZE

xHx

45/8" x 7

1/8"

3/8"

101/8" x4

5/8"

3/8"

3/4"

x 9

3/4"

118mm

182mm

162mm

257mm

118mm

162mm 178mm

299mm

247mm

WEIGHT

Net

Shipping

FINISH

FEATURES

4.11b

(1.9kg)/each

8.81b

(4.0kg)/pair

Black

Ash,

White

Textured

Dark

Cherry

Video

Shielded

5-way

Gold

Plated

Binding

Posts

Aluminum

Grille

Keyhole

Slot

'1.-20

Brass

Insert

Clear

Rubber

Bumpers

5.91b

(2.7kg)/each

6.71b

(3.0kg)/each

Black

Ash,

White

Textured

Dark

Cherry

Video

Shielded

5-way

Gold

Plated

Binding

Posts

Aluminum

Grille

HorizontalNertical

Keyhole

Slots

'1.-20

Brass

Insert

Clear

Rubber

Bumpers

10.21b

(4.6kg)/each

22.4lb

0.2kg)/pair

Black

Ash

Dark

Cherry

Video

Shielded

5·way

Gold

Plated

Binding

Posts

Aluminum

Grille

Keyhole

Slot

'1.-20

Brass

Insert

Clear

Rubber

Bumpers

All

specifications

are

subject

change

without

notice.

PSB'

trademark

Lenbrook

Corp

used

under

licence

PSB

Speakers'.

division

Lenbrook

Industries

Limited.

PSB

Speakers.

All

rights

reserved.

VI.

SPECIFICATIONS

Alpha

Center/Monitor

FREQUENCY

RANGE

(Anechoic

Chamber)

Response

Axis

0°

3dB

62-21,000Hz

Off

Axis

30°

1.5dB

62-10,000Hz

cutoff -

10dB

52Hz

Alpha

Tower

55-21,000Hz

55-10,000Hz

34Hz

SENSITIVITY

Anechoic

Chamber

Typical

Listening

Room

(1W

(2.83V)

1m,

IEC-filtered

Pink

Noise,

C-weighted)

90dB

89dB

92dB

91dB

IMPEDANCE

Nominal

Minimum

INPUT

POWER

Recommended

Program

ACOUSTIC

DESIGN

Tweeter

(Nominal)

Woofer

(Nominal)

Crossover

Internal

Volume

Design

Type

SIZE

xHx

WEIGHT

Net

Shipping

FINISH

FEATURES

Ohms

(RMS,

Clipping

10%

Time)

10-120

Watts

(19mm)

Aluminum

Dome

with

Ferrofluid

2x 5'I."

(130mm)

Injection

Molded

Metalized

Polypropylene

cone

with

Rubber

surround

3,000Hz,

0.46

(12.8

liters)

Bass

Reflex

(50mm)

Rear

Port

177/8" x

3/4"

453mm

178mm

247mm

15.91b

(7.2kg)/each

17.3Ib

(7.9kg)/each

Black

Ash

Dark

Cherry

Video

Shielded

5-way

Gold

Plated

Binding

Posts

Aluminum

Grille

HorizontalNertical

Keyhole

Slots

'1.-20

Brass

Insert

Clear

Rubber

Bumpers

80hms

Ohms

15-120

Watts

(19mm)

Aluminum

Dome

with

Ferrofluid

2x 5'I."

(130mm)

Injection

Molded

Metalized

Polypropylene

cone

with

Rubber

surround

3,000Hz,

1.19

(33.4

liters)

Bass

Reflex

20/."

(70mm)

Rear

Port

3/4"

1/4"

178mm

907mm

310mm

291b

(13.2kg)/each

72.21b

(32.8kg)/pair

Black

Ash

Dark

Cherry

Video

Shielded

Dual,

5-way

Gold

Plated

Binding

Posts

Aluminum

Grille

Bi·wireable/Bi-ampable

Adjustable

Spikes

and

Rubber

Levelers

All

specifications

are

subject

change

without

notice.

PSB®

trademark

Lenbrook

Corp.,

used

under

licence

PSB

Speakers',

division

Lenbrook

Industries

Limited.

PSB

Speakers.

All

rights

reserved.

PSB Speakers

633 Granite Court

Pickering, Ontario L1W

3K1

CANADA

www.psbspeakers.com

888-772-0000 (North America)

905-831-6555 (International)

Fax: 905-837-6357

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