Atlantic Technology 334 SB User Manual download pdf (Page 2)

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Atlantic Technology 334SB Subwoofer

the subwoofer, where it’ll be easier to access

if necessary, though you do have to remove

the grille to do so, so it’s not quite as easy as

they make out in the glossy brochure. More

about this volume control later. Underneath

this control is a small LED that I assumed was

supposed to ‘mirror’ the operation of the LED

on the rear panel. I say ‘assumed’ because the

LED on the front panel of my review sample

didn’t work at all, though the LED on the

rear panel worked ﬁne. Maybe a wire had

worked loose…

The signal-sensing circuit on the 334SB

turns the subwoofer on instantly, but (quite

properly) has a very long turn-off delay

(around ten minutes), so you won’t be both-

ered by the sub switching itself on and off

while you’re listening to music or watching

a movie. (And you always have the option of

forcing it to stay on permanently, using the

rear-panel switch I mentioned previously.)

One (added cost) option that is available

for the 334SB, but which wasn’t supplied to

me, is Atlantic Technology’s WA-50 Wireless

Audio System. This is a transmitter system

that allows you to send audio signals wire-

lessly from your ampliﬁer or AV receiver to

the 334SB, meaning that the only wire you’ll

need is a 240V power lead running from the

wall socket to the subwoofer. Perhaps more

importantly, using a WA-50 system makes

it really easy to set up a multiple-subwoofer

system (usually only two!). The primary

reason for using two subwoofers is to ‘smooth

out’ acoustic anomalies caused by the room

(usually particular points in the room where

there’s too much bass, or too little)… but you

could also use two subwoofers simply to get

additional volume, should you decide that

just one subwoofer is not enough! If you do

this way, you should be aware that the signal

to the subwoofer/s will be delayed

a little (Atlantic says that for the

WA-50, it’s less than 10mS) but you

should be able to compensate for

ATLANTIC TECHNOLOGY

334SB

Subwoofer

Brand: Atlantic Technology

Model: 334SB

Category: Powered Subwoofer

RRP: $1295

Warranty: Three Years

Distributor: Network Audio Visual Pty Ltd

Address: Unit 6B, 3–9 Kenneth Road

Manly Vale, NSW, 2093

(02) 9949 9349

(02) 9949 6972

sales@networkav.com.au

www.networkav.com.au

Readers interested in a full technical

appraisal of the performance of the

Atlantic Technology 334SB Subwoofer

should continue on and read the

LABORATORY REPORT published on the

page 85. Readers should note that

the results mentioned in the report,

tabulated in performance charts and/

or displayed using graphs

and/or photographs should

be construed as applying only

to the speciﬁc sample tested.

Lab Report on page 85

Front-mounted

volume control

Wireless option

(WA-50)

Sealed cabinet

Vinyl ﬁnish

Volume control

•

LAB REPORT

labelling appears to have been stuck on after

the plate was ﬁrst screen-printed—but it’s

no less welcome for being an afterthought!

And at least it shows Atlantic Technology is

prepared to make such changes to an existing

production run, rather than just throwing in

the towel and leaving a much-wanted update

in the ‘let’s do it on the Mk II model’ folder.

The reason for including a proper crossover

bypass is that it enables the 334SB to be con-

nected to the LFE output of a THX-certiﬁed

AV receiver and essentially conform with the

THX standard (even though the subwoofer

is not, itself, THX-certiﬁed). And if you don’t

have a THX AV receiver, but your receiver

offers sophisticated crossover frequency and

ﬁltering options for the subwoofer (as most

do these days), you can use these controls

rather than the ones on the 334SB itself. (If

you have two low-pass ﬁlters in circuit, the

one in your AV receiver, plus the other in

the subwoofer, it can mean that the overall

ﬁlter slopes become too steep to allow proper

integration of the subwoofer with the front

and surround channels.)

Just to the right of the low-pass control

is a two-position phase control (marked

‘normal’ and ‘invert’ rather than the more

usual 0° and 180°) and to the right of this, a

subsidiary power switch that allows you to

select between ‘auto’ signal-sensing operation

(the subwoofer switches itself on when it de-

tects and audio signal, and switches itself off

just as automatically when there hasn’t been

an audio signal for some time) and ‘on’ (this

position forces the sub to be on all the time).

Above this switch is a chameleon (multi-co-

lour) LED that glows red when the subwoofer

is powered-up, but in standby mode, and

then changes colour to green when it’s actu-

ally operating or out of standby mode.

If you’ve been reading carefully, you’ll

note that I haven’t mentioned a volume

control. This is because Atlantic Technology

has very sensibly placed it on the front of

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