Audison LR 1140 M Manual
Read below đź“– the manual in Italian for Audison LR 1140 M (20 pages) in the Receiver category. This guide has been helpful for 10 people and has been rated 4.5 stars on average by 2 users
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Strada Regina Km 3,5 • I 62018 Potenza Picena (MC) • Tel.0733/870.870 • Fax 0733/870.880 • http://www.audison.com
PRINTED IN ITALY - Cod. 10123300
Power measures taken according to audison standard 1995 edition.
- 12 VDC and 13.8 VDC
- 1 KHz or Cut off crossover frequency
- 0.3 % THD
- Tolerance +10 %; -5 %
- Continuous power given by RMS Voltage measured on resistive load
- The amplifier power clasification is made upon nominal 12 Volts battery voltate
at 4 Ohms load with all channels in function.
MANUALE DI SERVIZIO
LR 180 XR
LR 1140 XR
LR 180 M
LR 1140 M
MANUAL D'ASSISTANCE
BEDIENUNGSANLEITUNG
OWNER'S MANUAL
Amplificatore di potenza per auto Auto Hi Fi Endstufen
Car power amplifier Amplificateur de puissance pour l'automobile
LR 180 XR - LR 1140 XR
Supercurrent
39
ITALIANO
2
CARATTERISTICHE
Supercurrent series: LR 180 M, LR 1140 M, LR 180 XR, LR 1140 XR. Amplificatori ad un canale
di dimensioni compatte e dalle eccellenti caratteristiche musicali.
I modelli LR 180 M ed LR 1140 M sono a larga banda, quindi adatti per impianti DUAL MONO
o come piloti di SUBWOOFERS mono qualora sia previsto un CROSSOVER elettronico esterno.
I modelli LR 180 XR ed LR 1140 XR sono provvisti di un CROSSOVER elettronico interno e
quindi specializzati per il pilotaggio di SUBWOOFERS.
I tratti fondamentali della sofisticata circuitazione sono: stadi “FRONT END” realizzati con due
stadi differenziali complementari polarizzati con due generatori di corrente costante a basso
rumore. La configurazione dello stadio finale è costituita da una tripletta invertita a simmetria
complementare pura; il finale di potenza è realizzato da un parallelo di transistors con capacità in
corrente pari a 15 Ampere ciascuno.
L'alimentazione PWM a MOSFET è stato particolarmente progettato per fornire elevate correnti
agli stadi di amplificazione. Queste caratteristiche consentono grandi capacitĂ di pilotare carichi
molto bassi ed infatti questa serie di amplificatori è stata denominato Supercurrent per l'agevole
facilitĂ nel pilotare carichi con impedenza nominale di 1 Ohm. Naturalmente trattandosi di
amplificatori di dimensioni molto compatte relativamente alle prestazioni fornite, qualora
l'utilizzo ne preveda il funzionamento su carichi molto bassi, nell'installazione è opportuno
scegliere un luogo ben aerato o, se occorre una ventola di raffreddamento in prossimitĂ
dell'apparecchio onde evitare eccessivi surriscaldamenti.
PRECAUZIONI
· Per un buon funzionamento dell'apparecchio è importante accertarsi che la temperatura nel luogo dove
esso è installato sia compresa tra 0°C e 55°C.
· Il luogo prescelto per l'installazione deve essere ben ventilato ed asciutto.
· La tensione di alimentazione è di 12Vcc con negativo a massa. Accertarsi che le caratteristiche
dell'impianto elettrico del veicolo siano adatte per questo apparecchio.
· Per una maggiore sicurezza di guida si consiglia l'ascolto ad un livello tale da non coprire i suoni
provenienti dall'esterno dell'auto.
INSTALLAZIONE
Il fissaggio si effettua mediante il serraggio nelle apposite sedi delle 4 viti e relativi distanziali in
dotazione. Per un'ottima riuscita dell'impianto si consiglia di usare i prodotti della linea audison cable
che comprendono: cavi di alimentazione, di segnale, per altoparlanti, connettori RCA e tutti gli
accessori per il completamento del cablaggio.
AVVERTENZE
· INGRESSI: Nell'eventualità che il radioriproduttore non avesse in comune la massa di uscita con
il telaio si dovrĂ collegare la calza del cavo schermato con il telaio del radioriproduttore.
· USCITE: Non collegare in alcun caso tra loro oppure a massa le uscite -R e -L. Nel caso si utilizzi
un filtro crossover accertarsi che esso non abbia la massa in comune tra i canali.
· REGOLAZIONI: Nel caso si udissero fenomeni di saturazione a livelli di volume non elevato,
significa che il segnale esce distorto dal radioriproduttore. Portare il controllo di volume del
radioriproduttore verso un livello piĂą basso fino alla scomparsa della distorsione. Regolare
successivamente i livelli di taratura dell'amplificatore fino ad udire lievi fenomeni di saturazione.
LR 270
LR 1140 MLR 1140 M
SUBWOOFERS
LEFT
PRE OUT
REAR
LR 270
LR 1140 M
MORE THAN 1000 WATTS WITH ELECTRONIC CROSSOVERS AND FADER
LR 270
LR 270 LR 1140 M
PRE OUT
FRONT
LR 270
HI-PASS
FRONT-LEFT
SUBWOOFERS
RIGHT
BRIDGE
270 W - 4 Ohm
HI-PASS
REAR
MONO
285 W - 2 Ohm
MONO
285 W - 2 Ohm
LR 270 LR 1140 M
POWER IN
L R L R L R L R
INPUT LO-PASS HI-PASS HI-REAR
HI-PASS
FRONT-RIGHT
STEREO
75+75 W - 4 Ohm
BRIDGE
270 W - 4 Ohm
LXR2 SXR2
ENGLISH
3
CHARACTERISTICS
Supercurrent series: LR 180 M, LR 1140 M, LR 180 XR, LR 1140 XR
. One-channel amplifiers
of compact dimensions and excellent musical features. The
LR 180 M and LR 1140 M have a wide
band, therefore they are suitable for DUAL MONO installations or as mono SUBWOOFER
drivers where an external electronic CROSSOVER is provided. The LR 180 XR and LR 1140 XR
have an electronic CROSSOVER inside and are therefore specialize in driving the SUBWOOFERS.
The
outstanding features of the sophisticated circuitry are: “FRONT END” stages realized with
two complementary differential stages, polarized by two low Noise constant current sources. The
final stage configuration is made of an inverted triplet at pure complementary symmetry. The
power amplifier is realized by a transistor parallel with current capacity of 15 Amperes each. The
PWM MOSFET power supply has been particularly designed to supply high current at the
amplification stages. These features allow to drive very low loads; in fact this amplifier series has
been called
Supercurrent
for the easiness in driving loads with nominal impedance of 1 Ohm.
Of course, as they are amplifiers with very compact dimensions in relation to their performances,
it is opportune to choose a well-ventilated place for the installation when they work at very low
loads ore, if needed, a cooling fan can be placed near the device, in order to avoid excessive
overheating.
PRECAUTIONS
·In order for this device to function properly it's important that it be installed in a spot where the
temperature doesn't fall below 0 C (32° ° °F) or rise above 55 C (131 F).°
· It must be installed in a dry and well ventilated spot.
· The power supply voltage is 12 Vcc negative to ground. Make sure that the caracteristics of the
vehicle's electrical system are compatible.
· For safe driving it's advised to listen to music at volume level that won't drown out external traffic
sounds.
INTALLATION
For mounting use 4 self-threading screws and protective plastic rings provided. For a very good result
we suggest to use audison cable products to complete your installation. These include: power cables,
signal cables, speaker wires RCA connectors and all accessories needed to complete the wiring.
WARNING
· INPUT: If the radio-cassette player's output GND isn't connected to car body, the braided shield of
shielded cable must be connected to the radio-cassette player's chassis.
· OUTPUTS: Never connect the -R and -L outputs to ground or to each other. If a crossover filter is
used be assured that the two channels don't have a common ground.
· REGULATION: If you should hear distortion phenomena at moderate volume levels, it means that
a distorted signal is coming from the radio-cassette player. Turn radio-cassette player volume down
until there's no longer any distortion.
Then adjust levels of the calibration the amplifier until you hear slight distortion phenomena.
38
LR 1140 XR
LR 270
LR 1140 XR
HI-PASS
FRONT-LEFT
L R
HI-PASS REAR
SUBWOOFERS
LEFT
L
LR 270
LR 1140 XR
MORE THAN 1000 WATTS SYSTEM
LR 270
LR 270 LR 1140 XR
R
LR 270
HI-PASS
FRONT-RIGHT
SUBWOOFERS
RIGHT
BRIDGE
270 W - 4 Ohm
BRIDGE
270 W - 4 Ohm
STEREO
75+75 W - 4 Ohm
MONO
250 W - 2 Ohm
MONO
250 W - 2 Ohm
LR 270 LR 1140 XR
Product Specifications
| Brand: | Audison |
| Category: | Receiver |
| Model: | LR 1140 M |
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