Gain Control - Pioneer Super Tuner III D DEH-3150UB Brochure

Amplifiers & Subwoofers
GM-6400F
4/3/2-Channel Bridgeable Power Amplifier
• 60 W × 4 (4 Ω)/60 W × 2 + 150 W × 1 (4 Ω)/150 W × 2 (4 Ω)/
75 W × 4 (2 Ω) (continuous power)
• 120 W × 4 (4 Ω)/120 W × 2 + 300 W × 1 (4 Ω)/300 W × 2 (4 Ω)
(max. power)
• Bridgeable 4/3/2-channel capability
GM-5400T
2/1-Channel Bridgeable Power Amplifier
• 125 W × 2 (4 Ω)/380 W × 1 (4 Ω)/190 W × 2 (2 Ω)
(continuous power)
• 250 W × 2 (4 Ω)/760 W × 1 (4 Ω) (max. power)
• Bridgeable 2/1-channel capability
Common Features
• Input level control (200 mV to 6.5 V)
• Input level/gain control
• Low load impedance capability (4 Ω, 2 Ω to 8 Ω allowable)

Gain Control

ALL POWER AMPLIFIERS*
*Except RS-A9 and RS-A7
The Pioneer GM analog amplifiers are all equipped with the Gain Control,
a protective function that prevents malfunction of the unit itself, as well as the
speakers, caused by too much output, improper use and improper connection.
Even when the amplifiers are connected to the headunits with high-voltage
pre-outs, the signal is not clipped or distorted if the gain control is set to proper
position, so high S/N (Signal-to-Noise) ratio is realized in the speaker level signal.
To ensure continuous audio output, the amplifier's gain control must be set
according to the pre-out maximum output level of the headunit. There is no need
to decrease the volume of the headunit, as too much output will be controlled.
GM-3300T
2/1-Channel Bridgeable Power Amplifier
• 60 W × 2 (4 Ω)/150 W × 1 (4 Ω)/75 W × 2 (2 Ω)
(continuous power)
• 120 W × 2 (4 Ω)/300 W × 1 (4 Ω) (max. power)
• Bridgeable 2/1-channel capability
• LPF (80 Hz, –12 dB/oct.)
42
600 W Max.
• LPF/HPF (80 Hz, –12 dB/oct.) for A and B channels
• RCA input and output terminals*
* Output for A-channel
760 W Max.
• LPF (80 Hz, –12 dB/oct.)
• RCA input terminals
• Bass Boost (50 Hz, 0 dB/+6 dB/+12 dB)
• Screw-type speaker terminals
• Large screw-type power/ground terminals
• Speaker level input (1.6 V to 26 V)
• PWM regulated power supply with MOSFET switching
• High-voltage input level control (400 mV to 6.5 V)
• Input level/gain control
• Low load impedance capability
(4 Ω, 2 Ω to 8 Ω allowable)
• RCA input terminals
NEW
NEW
GM-6400F
• High-performance balanced isolator circuit
• Black metallic mesh with silver plate
Gain control of the unit
(GM-6400F)
Pre-out level: 4 V
Pre-out level: 6.5 V
6.5 V
300 W Max.
• Screw-type speaker terminals
• Large screw-type power/ground terminals
• Speaker level input (1.6 V to 26 V)
• High-performance balanced isolator circuit
• Black heatsink with aluminum plate
Pre-out level: 2 V
Normal
Gain 0.2 V