Integrated amplifiers — Marantz Model 70

Name: Marantz Model 70
Brand: Marantz

Description, images, technical data and specifications

Marantz Model 70
Image source — © Marantz

The Model 70 outputs 50 watts per channel and is based on an advanced Class A/B circuit. The key point here is the enlarged toroidal transformer: it is responsible for the current reserve and stability of operation at real acoustic loads. The analog path uses proprietary HDAM circuitry, modules that Marantz uses in its top—line products and is now moving to a more democratic level.

Specifications

Model name
Model 70
Type
Integrated Amplifier
Analog inputs (balanced)
N/A
Analog inputs (single-ended)
3 + 1 (Phono)
Input sensitivity (mV)
185
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
18 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
D/A conversion
Yes
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
50
Output power (4Ω) (W)
65
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
5
Frequency response high +/- 3dB (Hz)
50 000
Signal to Noise Ratio (dB)
110
Total Harmonic Distortion + Noise (%)
0.08 %
Damping factor
100
Dimensions (mm)
442 × 375 × 109
Weight (kg)
7.9
Official link
https://www.marantz.com/en/product/amplifiers/model-70/MODEL70.html