QSC UF-2 Manuel du propriétaire télécharger pdf (Page 5)

In addition to enabling the high-pass filter at Jx02, if you opt for CD horn equalization you must place a jumper

at Jx03 as well. The UF-2 offers two equalization curves for CD horn correction: one with +6 dB of boost

at 20 kHz (place the jumper across pins 1 and 2 of Jx03), and one with +10 dB of boost at 20 kHz (place

the jumper across pins 2 and 3). If you do not place a jumper in one position or the other, the CD horn

equalization circuit will be inactive.

The table below is a summary of jumper settings for the UF-2.

IV. TYPICAL APPLICATIONS

Subsonic Filter

Subsonic filters are commonly used in sound installations to filter out rumbles and other inaudible or

unwanted low frequency signals and to protect speaker drivers. Vented speaker enclosures in particular

often exhibit a phenomenon in which the acoustical damping on the driver(s) drops at extremely low

frequencies below their own resonant frequency. In a situation like this, a subsonic filter will help to prevent

damage from over-excursion of the speaker cone.

Program settings:

1. Set the jumper on Jx01 to bypass the low-pass

filter (across pins 1 and 2).

2. Set the jumper on Jx02 to enable the high-pass

filter (across pins 2 and 3).

3. No jumper on Jx03.

4. Insert a resistor network in RNx04 that is appropri-

ate to the desired roll-off frequency—typically 20,

30, 40, or 50 Hz.

Typ. 20–50 Hz

Subsonic roll-off

Figure 4—UF-2 as a subsonic filter

2&1sniP3&2sniPenoN

noitcnuFredaeH

:1lennahC

ssap-wolssapyB101JX

ssap-wolelbanE101JX

ssap-hgihssapyB201JX

ssap-hgihelbanE201JX

tsoobnrohDCelbasiD301JX

zHk02@Bd6+,tsoobnrohDC301JX

zHk02@Bd01+,tsoobnrohDC301JX

:2lennahC

ssap-wolssapyB102JX

ssap-wolelbanE102JX

ssap-hgihssapyB202JX

ssap-hgihelbanE202JX

tsoobnrohDCelbasiD302JX

zHk02@Bd6+,tsoobnrohDC302JX

zHk02@Bd01+,tsoobnrohDC302JX

1 2 3 4 5 6 7 8 9 10 11 12

Commentaires sur ces manuels

Pas de commentaire

QSC UF-2 Manuel du propriétaire Page 5

Commentaires sur ces manuels

Produits connexes et manuels pour Amplificateurs audio QSC UF-2