Sunfire Subrosa SRS-210R Manuel d'utilisateur télécharger pdf (Page 17)

User's Manual

There are two main methods for adjust-

ing the level, crossover frequency and

phase of the Sunre subwoofer to match

a system:

• Sunre’s preferred method: By

listening and making the

adjustments to suit your taste.

• Laboratory method: By measuring

the output and adjusting for a at

frequency response.

Excellent results can be obtained if you

make the adjustments based on simply

listening. This is Sunre’s preferred meth-

od as it allows the system to be voiced

based on what sounds the best, whereas

laboratory-at frequency response can

often be clinical and less than exciting.

The following procedure is for those

who prefer a more methodical and scien-

tic approach. This excerpt is from “The

Audio Critic,” issue 24, page 31, written

by contributing editor David Rich, and is

reprinted here with their kind permission.

You will need a test CD with low-fre-

quency warble tones, and a sound pres-

sure-level meter. The Radio Shack

®

SPL

meter will do ne, as will the Stereophile

®

test CD.

“Step 1. Disconnect the subwoofer and

run the main speaker with a tone in its

passband (80-100Hz). Measure the level.

Step 2. Disconnect the main speaker

and reconnect the subwoofer. Set the

subwoofer to its highest crossover

frequency. Set the level control of the

subwoofer to give the same sound pres-

sure level with the same tone you used

in Step 1.

Step 3. With both the subwoofer and

the main speaker connected, measure

the level of the tones at the available

frequencies. Because the crossover

is set too high, you will have a peaked

response. Adjust the crossover control to

get the smoothest response.

Adjusting the controls

Step 4. Use the phase control to make

the response even smoother. It has its

biggest effect at the crossover frequency.

You can iterate between the crossover

and the phase controls. Keep your hands

off the level control! It was set correctly

in step 2.

Step 5. Listen to the subwoofer.

Resist all temptations to turn up the level

control. Play something with really deep

bass to conrm that your subwoofer is

working.”

17

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 23 24

Commentaires sur ces manuels

Pas de commentaire