- 5 % bei Vorkasse!
Arc Audio 4200SE, 4 Kanal Verstärker
Signature Edition by Robert Zeff is our no compromise, high power,
audiophile amplifier designed and engineered by Robert Zeff and the staff at
Nikola Engineering. This design is taken from Roberts many years of experience
in both professional and the car audio industries where he daily used, repaired
and built high power, high fidelity amplifiers. With these lessons well learned
over 30 years he finally had the opportunity to make for ARC Audio the no
compromise, no limits amplifier he had always dreamt of.
Signature Edition is a Hard Bias Class A/B amplifier. A simple Class B
amplifier uses 2 output transistors to supply the current that moves the
speaker. The positive transistor will push the woofer out and the negative will
pull it back. In this design only 1 transistor is working at any give time. It
is the transition between positive and negative that leads to the higher
distortion that makes a Class B amplifier unacceptable for audio reproduction.
In most cases a bias circuit is added to a Class B amplifier making it a Class
A/B. The Bias circuit improves the distortion by slightly turning on the unused
output device while current is flowing across the other. The more bias you add
the lower the distortion but there is a side effect. Heat is created as the 2
output transistors are both on at the same time. The more bias you add the
better it sounds but the more heat you produce but heat changes the natural bias
of the output devices.
More heat equals more bias until you reach the point of over bias and the
amplifier fails. The trick to the Signature Edition Bias circuit is managing the
bias current at any temperature. By carefully matching the bias of every amp we
are able to maintain stable bias across the temperature range allowing the
technician "dial in" much more bias then a conventional class A/B amplifier.
This is one of the key elements to the Signature Editions amazingly transparent
sound.
The key to running so much bias is heat management. Signature Edition has a
unique heat sink design that uses a 4" fan mounted in the center of the circuit
board to force cool air in a cross flow pattern across a massive finned heat
sink before exhausting it from the ends. This design minimizes the effects of
installation location on the thermal performance of the amplifier. Mounted
upside down, under or behind a seat or beneath a panel Signature Edition will
perform equally well.
To further improve the dynamics and efficiency the Signature Edition
amplifier exclusively use stiffly regulated, fully isolated power supplies.
Regulation not only improves the damping factor and overall control of an
amplifier but it eliminates any affect of voltage drops in the charging system
may have.
Die technischen Daten der ARC Audio SE 4200:
- 4 Channels @ 4 ohms: 110 Watts
- 4 Channels @ 2 ohms: 200 Watts
- 2
Channels @ 4 ohms (Bridged): 400 Watts
- 2 Channels @ 2 ohms (Bridged): 400
Watts
- Frequency Response: 4Hz - 100kHz
- Crossover Range: 30Hz -
550kHz
- Crossover Range X10: 300Hz - 5500kHz
- Bass Boost: 0 - 15dB @
20Hz - 80Hz
- S/N Ratio: 90 dB
- Input Sensitivity (Low): .3V - 4V
-
Input Sensitivity (Bal): .4V - 8V
- Max current draw: 222 Amps @
1600 Watts 20% THD
- Idle Current: 2.3 Amps
- Dimensions: 19.5"(L) x
8.0" (W) x 2.5"(H)
Die Merkmale des ARC Audio 4200-SE Verstärkers:
- handselektierte
Sanken Endstufen Transistoren
- kompromissloser Aufbau
-
temperaturgesteuerter Bias für minimale Klirrwerte bei jeder Temperatur
-
hart geregeltes, mikroprozessorgesteuertes Netzteil mit automatischer
Umschaltung von HighVoltage auf HighCurrent bei niedriger Last
-
temperaturgesteuerter Lüfter
- Dämpfungsfaktor 1000
- HP/LP/BP schlatbar
auf akllen Kanälen von 30-5500 Hz, 12/24 db/Okt schaltbar
- BassBoost
regelbar 20-80Hz und 0-15 db
- getrennte Gain-Regler für Links/Rechts
-
Input-Select Schalter
- symetrische Eingänge über 8-poligen Western Stecker
- beleuchtetes ARC Logo in 256 frei wählbaren Farben
- SubLevel Regler
inklusive (bei 4-Kanal frei zuordenbar)
Lieferumfang: 1 Endstufe inkl. Montagezubehör und
Produktanleitung
Mehr
von und über ARC Audio...
