MARANTZ  300 DC

Stereo power amplifier

(solid state)

FRONT PANEL : Anodized silver/gold. Left and right gain. Two output meters (3 and 1/4 inch). Left and right peak indicator lamp. Meter range (off, -20dB, -10dB, 0 dB). Power switch.

PANNELLO FRONTALE : in anodizzato argento/oro. Regolazione del guadagno sinistra e destra. Indicatore di picco sinistro e destro. Meter range (off, -20dB, -10dB, 0 dB). Interruttore di rete.

DESIGNED IN USA  -  PRODUCED IN JAPAN

BACK PANEL :  Two AC outlets unswitched (100 w max). Fuse (6 A). Speaker connections one set.. Input. AC/DC coupling selector.

PANNELLO POSTERIORE : Due prese di alimentazione esterna indipendenti (100 w max). Ingresso per un set di altoparlanti. Input con selettore di ingresso AC/DC.

GENERAL

Stereo power amplifier – Solid state.

Designed in USA  -  Produced in Japan

First Year 1978

Last Year 1980

Matching Preamplifiers 3250,3250b,3650

Matching Tuners 2100,2110,2120,2130

Full complementary output, zero phase shift, DC.

Speaker Connections One Set

AC Switch Yes

DC Capable Yes, switchable

Unswitched AC Outlets Two

Power Source Details Dual secondary, non-toroidal

Power Consumption 560 watts, 90 @ idle

Independent Power Supplies Secondary only

Rarity :  X-Rare

Dimensions :  Width 16-3/8  - Height 5-3/4  - Depth 12-1/2   - Weight 44 Lbs (20 kilos)

ELECTRICAL

Power Per Channel : 152 @ 8, 190 Watts @ 4 RMS

Damping Factor @ Load Impedance:  60, 8 Ohms, 20 Hz

Total Harmonic Distortion (THD) : 0.03% (8 Ohms), 0.05% (4 ohms), both @ full power

Intermodulation Distortion (IM) 0.03% @ 8 Ohms, 0.09% @ 4 ohms both @ full power

Power Bandwidth:  20 Hz to 20 kHz

Frequency Response :  +0 dB, -1 dB, 5 Hz-60KHz

Hum and Noise :  Unrated

Signal to Noise Ratio :  110 dB

Input Impedance :  30 k-ohms

Input Sensitivity for Full Output : 1.5 v for full output

Output Impedance :  8 to 4 ohms

Is available on request the owner’s manual ( English, French and German language)

and the service manual with schematics (English)

E’ disponibile a richiesta il manuale di istruzioni (in inglese,francese e Tedesco)

e il manuale di servizio con gli schemi (in inglese)