GM-3500T - Audio Amplifier PIONEER - Free user manual and instructions

Product Type	Two-channel bridgeable power amplifier
Brand	Pioneer
Model	GM-3500T
Power Supply	14.4 V DC (10.8 V to 15.1 V), negative ground
Maximum Output Power	400 W (200 W × 2)
Continuous Output Power	60 W × 2 (4 Ω, 20 Hz-20 kHz, ≤1% THD+N) 185 W × 1 (bridged 4 Ω, 1 kHz, ≤1% THD+N) 85 W × 2 (2 Ω, 1 kHz, ≤1% THD+N)
Load Impedance	4 Ω (2 Ω to 8 Ω acceptable)
Frequency Response	10 Hz to 70 Hz (+0 dB, -3 dB)
Signal-to-Noise Ratio	98 dB (IEC-A)
Distortion	0.05% (10 W, 1 kHz)
Low-Pass Filter	Cutoff frequency 80 Hz, slope -12 dB/octave
Gain Control	RCA: 200 mV to 6.5 V Speaker: 0.8 V to 26 V
Fuses	25 A × 1, 30 A × 2
Power Consumption	15 A (4 Ω continuous), average current 4 A (two channels) / 7 A (one channel)
Protection Functions	Short circuit, overheating, DC output voltage
Power Indicator	LED
Bridged Mode	Yes, for a load of 4 Ω max
Inputs	RCA (2 channels) and speaker input (with supplied connector)
Speaker Outputs	2 channels (stereo) or 1 channel (bridged mono)
Remote Control	System remote wire (12 V)
Installation	Self-tapping screws supplied (4 mm × 18 mm), pre-drilling 2.5 mm
Recommended Accessories	Red battery wire RD-223 and ground wire (sold separately)

Frequently Asked Questions - GM-3500T PIONEER

How to connect the GM-3500T amplifier to the battery?

Use a special red battery wire RD-223 (sold separately) connected directly to the positive (+) terminal of the battery. The ground wire (black) must be connected to the vehicle chassis. Disconnect the negative (-) terminal of the battery first before any installation.

What speaker impedance can I use?

In stereo mode (two channels): 2 Ω to 8 Ω. In bridged mode (one channel): 4 Ω to 8 Ω maximum. Do not exceed 4 Ω in bridged mode to avoid overheating.

How to adjust the amplifier gain?

The gain control is located on the front panel. For a standard RCA source (500 mV), set to NORMAL. For a Pioneer source with output up to 4 V or more, adjust the gain accordingly. Turn the control to a lower level if the output is saturated.

What to do if the sound cuts out regularly?

This may be due to activation of the protection function. Check the speaker connections (short circuit), the amplifier temperature, and the gain level. If everything is correct, contact a Pioneer service center.

Can I use the speaker input and RCA input at the same time?

No, do not connect both the RCA input and the speaker input simultaneously. Use one or the other depending on your source.

How to configure bridged mode?

For bridged mode, use the positive (+) terminal of the left channel and the negative (-) terminal of the right channel to connect a 4 Ω speaker (or two 8 Ω speakers in parallel). Do not exceed 4 Ω.

Which fuse to use for the amplifier?

The amplifier uses one 25 A fuse and two 30 A fuses. Always replace with a fuse of the same value. An incorrect fuse may cause overheating.

The power indicator does not light up, what to do?

Check the power connections (battery, ground, remote). Make sure the remote wire is connected to a switched 12 V source. Also check the fuses.

Can this amplifier be used with a subwoofer?

Yes, in bridged mode for a subwoofer. Set the LPF switch to ON to activate the low-pass filter at 80 Hz, which removes high frequencies.

Where can I find the complete user manual?

The complete manual is available for free download on notice-facile.com in PDF format. You can also visit the Pioneer website: www.pioneer.fr.

USER MANUAL GM-3500T PIONEER

If you want to dispose this product, do not mix it with general household waste. There is a separate collection system for used electronic products in accordance with legislation that requires proper treatment, recovery and recycling.

Private households in the member states of the EU, in Switzerland and Norway may return their used electronic products free of charge to designated collection facilities or to a retailer (if you purchase a similar new one).

For countries not mentioned above, please contact your local authorities for the correct method of disposal.

By doing so you will ensure that your disposed product undergoes the necessary treatment, recovery and recycling and thus prevent potential negative effects on the environment and human health.

Thank you for purchasing this PIONEER product.

To ensure proper use, please read through this manual before using this product. It is especially important that you read and observe

WARNINGS and CAUTIONS in this manual.

Please keep the manual in a safe and accessible place for future reference.

Visit our website

Visit us at the following site:

http://www.pioneer.co.uk

- Register your product. We will keep the details of your purchase on file to help you refer to this information in the event of an insurance claim such as loss or theft.

- We offer the latest information about PIONEER CORPORATION on our website.

In case of trouble

Should this product fail to operate properly, please contact your dealer or nearest authorized Pioneer Service Station.

Before connecting/installing the amplifier

WARNING

• The use of a special red battery and ground wire RD-223, available separately, is recommended. Connect the battery wire directly to the car battery positive terminal ⊕ and the ground wire to the car body.
• This unit is for vehicles with a 12 V battery and negative grounding. Before installing in recreational vehicles, trucks or buses, check the battery voltage.
• Always use a fuse of the rating prescribed. The use of an improper fuse could result in overheating and smoke, damage to the product and injury, including burns.
• Check the connections of the power supply and speakers if the fuse of the separately sold battery wire or the amplifier fuse blows. Determine and resolve the cause, then replace the fuse with and identical equivalent.
• Do not allow this unit to come into contact with liquids. Electrical shock could result. Also, damage to this unit, smoke, and overheating could result from contact with liquids. The surfaces of the amplifier and any attached speakers may also heat up and cause minor burns.

Before you start

• In the event of any abnormality, the power supply to the amplifier is cut off to prevent equipment malfunction. If this occurs, switch the system power off and check the power supply and speaker connections. If you are unable to determine the cause, please contact your dealer.
• Always disconnect the negative terminal of the battery beforehand to avoid the risk of electric shock or short circuit during installation.

CAUTION

• Always keep the volume low enough to hear outside sounds.
• Extended use of the car stereo while the engine is at rest or idling may exhaust the battery.

About the Protection function

The Protection function will operate in the conditions outlined below. If the Protection function is turned on, the power indicator will turn off, and the amplifier will shut down.

• If the speaker output terminal and speaker wire is short-circuited.
• If the temperature inside the amplifier gets too high.
• If a DC voltage is applied to the speaker output terminal.

What's what

Front side

Rear side

To adjust the switch, use a flathead screwdriver if needed.

① LPF (low-pass filter) switch

Switch the settings based on the connected speaker.

• When the Subwoofer is connected: Select ON. This eliminates high range frequency and outputs low range frequency.
• When the full range speaker is connected: Select OFF. OFF outputs the entire frequency range.

② GAIN (gain) control

If output remains low, even when the car stereo volume is turned up, turn controls to lower level. If distortion occurs when the car stereo volume is turned up, turn these controls to higher level.

• For use with an RCA equipped car stereo (standard output of 500 mV), set to the NORMAL position. For use with an RCA equipped Pioneer car stereo, with max. output of 4 V or more, adjust level to match that of the car stereo output.
• If you hear too much noise when using the speaker input terminals, turn the gain control to higher level.

③ Power indicator

The power indicator lights up to indicate power ON.

Setting gain properly

• Protective function included to prevent malfunction of the unit and/or speakers due to excessive output, improper use or improper connection.
• When outputting high volume sound etc., this function cuts off the output for a few seconds as a normal function, but output is restored when the volume of the head unit is turned down.
• A cut in sound output may indicate improper setting of the gain control. To ensure continuous sound output with the head unit at a high volume, set amplifier gain control to a level appropriate for the preout maximum output level of the head unit, so that volume can remain unchanged and to control excess output.
• Despite correct volume and gain settings, the unit sound still cuts out periodically. In such cases, please contact the nearest authorized Pioneer Service Station.

Gain control of this unit

Above illustration shows NORMAL gain setting.

Relationship between amplifier gain and head unit output power

If amplifier gain is raised improperly, this will simply increase distortion, with little increase in power.

Setting the unit

Signal waveform when outputting at high volume using amplifier gain control

Signal waveform distorted with high output, if you raise the gain of the amplifier the power changes only slightly.

Connection diagram

① Special red battery wire RD-223 (sold separately)

After completing all other amplifier connections, finally connect the battery wire terminal of the amplifier to the positive (⊕) battery terminal.

② Ground wire (Black)

RD-223 (sold separately)

Connect to metal body or chassis.

③ Car stereo with RCA output jacks (sold separately)

④ External output

⑤ Connecting wire with RCA pin plugs (sold separately)

⑥ Speaker input terminal (use a connector included)

Please see the following section for speaker connection instructions. Refer to Connections when using the speaker input wire on page 8.

⑦ RCA input jack

⑧ System remote control wire (sold separately)

Connect male terminal of this wire to the system remote control terminal of the car stereo.

The female terminal can be connected to the auto-antenna relay control terminal. If the car stereo lacks a system remote control terminal, connect the male terminal to the power terminal via the ignition switch.

⑨ Speaker output terminals Please see the following section for speaker connection instructions. Refer to Connections when using the speaker input wire on page 8.

⑩ Fuse (25 A)
⑪ Fuse (30 A) × 2
⑫ Grommet
⑬ Rear side
⑭ Front side

Before connecting the amplifier

WARNING

• Secure the wiring with cable clamps or adhesive tape. To protect the wiring, wrap sections in contact with metal parts in adhesive tape.
• Never cut the insulation of the power supply to feed power to other equipment. Current capacity of the wire is limited.

CAUTION

• Never shorten any wires, the protection circuit may malfunction.
• Never ground speaker wire directly or band together multiple speakers' negative ( ) lead wires.
• If the system remote control wire of the amplifier is connected to the power terminal via the ignition switch (12 V DC), the amplifier will remain on with the ignition whether the car stereo is on or off, which may exhaust battery if the engine is at rest or idling.
• Install and route the separately sold battery wire as far as possible from the speaker wires. Install and route the separately sold battery wire, ground wire, speaker wires and the amplifier as far away as possible from the antenna, antenna cable and tuner.

About bridged mode

Diagram A - Proper

4 Ω Bridged Mode

Diagram B - Improper

2 Ω Bridged Mode

Speaker impedance is max. 4 , please carefully check. Improper connection to the amplifier may result in malfunction or personal injury due to burns from overheating.

For bridged mode for a two-channel amplifier, with a 4 Ω load, either wire two 8 Ω speakers in parallel, Left ⊕ and Right ⊖ (Diagram A) or use a single 4 Ω speaker. For other amplifiers, please follow the speaker output connection diagram for bridging shown on rear: two 8 Ω speakers in parallel for a 4 Ω load or a single 4 Ω speaker per channel.

For any further enquiries, contact your local authorized Pioneer dealer or customer service.

About suitable specification of speaker

Ensure speakers conform to the following standards, otherwise there is a risk of fire, smoke or damage. Speaker impedance is 2 to 8 for stereo connection, or 4 to 8 for monaural and other bridge connection.

Subwoofer

Speaker channel	Power
Two-channel output	Nominal input:Min. 60 W
One-channel output	Nominal input:Min. 180 W

Other than subwoofer

Speaker channel	Power
Two-channel output	MAX input:Min. 120 W
One-channel output	MAX input:Min. 370 W

Connecting the speakers

The speaker output mode can be two-channel (stereo) or one-channel (mono). Connect the speaker leads to suit the mode according to the figures shown below.

Two-channel output (Stereo)

① Speaker (Left)
② Speaker (Right)

One-channel output

① Speaker (Mono)

Connections when using the speaker input wire

Connect the car stereo speaker output wires to the amplifier using the supplied speaker input wire.

- Do not connect both the RCA input and the speaker input at the same time.

graph TD
    ① --> ②
    ② --> ③
    ③ --> ④
    ④ --> ⑤
    ⑤ --> ⑥
    ⑥ --> ⑦
    ⑦ --> ⑧
    ⑧ --> ⑨
    style ① fill:#f9f,stroke:#333
    style ② fill:#f9f,stroke:#333
    style ③ fill:#f9f,stroke:#333
    style ④ fill:#f9f,stroke:#333
    style ⑤ fill:#f9f,stroke:#333
    style ⑥ fill:#f9f,stroke:#333
    style ⑦ fill:#f9f,stroke:#333
    style ⑧ fill:#f9f,stroke:#333

① Car Stereo
② Speaker output
③ White/black: Left ⊖
④ White: Left ⊕
⑤ Gray/black: Right ⊖
⑥ Gray: Right ⊕
⑦ Speaker input connector
To speaker input terminal of this unit.

Connecting the power terminal

The use of a special red battery and ground wire RD-223, available separately, is recommended. Connect the battery wire directly to the car battery positive terminal and the ground wire to the car body.

WARNING

If the battery wire is not securely fixed to the terminal using the terminal screws, there is a risk of overheating, malfunction and injury, including minor burns.

1 Route battery wire from engine compartment to the vehicle interior.

After completing all other amplifier connections, finally connect the battery wire terminal of the amplifier to the positive (⊕) battery terminal.

① Positive (⊕) terminal
② Engine compartment
③ Vehicle interior
④ Fuse (30 A) × 2
⑤ Insert the O-ring rubber grommet into the vehicle body.
⑥ Drill a 14 mm hole into the vehicle body.

2 Twist the battery wire, ground wire and system remote control wire.

3 Attach lugs to wire ends.

Use pliers, etc., to crimp lugs to wires.

① Lug (sold separately)
② Battery wire
③ Ground wire

4 Connect the wires to the terminal.

Fix the wires securely with the terminal screws.

① System remote control terminal
② Ground terminal
③ Power terminal
④ Terminal screws
⑤ Battery wire
⑥ Ground wire
⑦ System remote control wire

Connecting the speaker output terminals

1 Use wire cutters or a utility knife to strip the end of the speaker wires to expose about 10 mm of wire and then twist the wire.

2 Attach lugs to wire ends.

Use pliers, etc., to crimp lugs to wires.

① Lug (sold separately)
② Speaker wire

3 Connect the speaker wires to the speaker output terminals.

Fix the speaker wires securely with the terminal screws.

① Terminal screws
② Speaker wires
③ Speaker output terminals

Before installing the amplifier

WARNING

• To ensure proper installation, use the supplied parts in the manner specified. If any parts other than those supplied are used, they may damage internal parts of the amplifier, or become loose causing the amplifier to shut down.
• Do not install in:

— Places where it could injure the driver or passengers if the vehicle stops suddenly.
— Places where it may interfere with the driver, such as on the floor in front of the driver's seat.

• Install tapping screws in such a way that the screw tip does not touch any wire. This is important to prevent wires from being cut by vibration of the car, which can result in fire.
• Make sure that wires do not get caught in the sliding mechanism of the seats or touch the legs of a person in the vehicle as short-circuit may result.
• When drilling to install the amplifier, always confirm no parts are behind the panel and protect all cables and important equipment (e.g. fuel/brake lines, wiring) from damage.

CAUTION

- To ensure proper heat dissipation of the amplifier, ensure the following during installation:

— Allow adequate space above the amplifier for proper ventilation.
— Do not cover the amplifier with a floor mat or carpet.

• Protection function may activate to protect the amplifier against overheating due to installation in locations where sufficient heat cannot be dissipated, continuous use under high-volume conditions, etc. In such cases, the amplifier shuts down until it has cooled to a certain designated temperature.

• Avoid routing wires through hot areas, such as near the heater outlet. Heat may damage the insulation, resulting in a short-circuit through the vehicle body.

• The optimal installation location differs depending on the car model. Secure the amplifier at a sufficiently rigid location.

• Firstly make temporary connections and check to ensure the amplifier and system operate properly.
• After installing the amplifier, confirm that the spare tire, jack and tools can be easily removed.

Example of installation on the floor mat or chassis

1 Place the amplifier in the desired installation location.

Insert the supplied tapping screws (4 mm × 18 mm) into the screw holes and push on the screws with a screwdriver so they make an imprint where the installation holes are to be located.

2 Drill 2.5 mm diameter holes at the imprints either on the carpet or directly on the chassis.

3 Install the amplifier with the use of supplied tapping screws (4 mm × 18 mm).

① Tapping-screws (4 mm × 18 mm)
② Drill a 2.5 mm diameter hole
③ Floor mat or chassis

Additional information

Specifications

Power source .... 14.4 V DC (10.8 V to 15.1 V allowable)

Grounding system ...... Negative type

Current consumption .... 15 A (at continuous power, 4Ω)

Average current drawn ..... 4 A (4 Ω for two channels) 7 A (4 Ω for one channel)

Fuse 25A × 1

Dimensions (W × H × D) ...289 mm × 62 mm × 219 mm

Weight 2.0 kg (Leads for wiring not included)

Maximum power output ..... 400 W (200 W × 2)

Continuous power output ... 60 W × 2 (at 14.4 V, 4Ω 20 Hz to 20 kHz, ≤ 1.0 % THD + N) 185 W × 1 (at 14.4 V, 4Ω BRIDGE 1 kHz, ≤ 1.0 % THD + N) 85 W × 2 (at 14.4 V, 2Ω, 1 kHz, ≤ 1.0 % THD + N)

Load impedance ....4 Ω (2 Ω to 8 Ω allowable)

Frequency response .... 10 Hz to 70 kHz (+0 dB, -3 dB)

Signal-to-noise ratio ..... 98 dB (IEC-A network)

Distortion 0.05% (10 W, 1 kHz)

Low pass filter: Cut off frequency ....80 Hz Cut off slope ....-12 dB/oct

Gain control: RCA ....200 mV to 6.5 V Speaker ....0.8 V to 26 V

Maximum input level / impedance: RCA ....6.5 V / 22 kΩ Speaker ....26 V / 22 kΩ

Notes

• Specifications and the design are subject to modifications without notice.
• The average current drawn is nearly the maximum current drawn by this unit when an audio signal is input. Use this value when working out total current drawn by multiple power amplifiers.

② Commande GAIN (gain)

Dimensions (L × H × P) ..... 289 mm × 62 mm × 219 mm

Poids ....2,0 kg (fils de câblage non inclus)

① Altoparlante (mono)

① Capocorda (venduto a parte)
② Cavo altoparlanti

Dimensioni (L × A × P) ..... 289 mm × 62 mm × 219 mm

60 W × 2 (a 14,4 V, 4 Ω, da 20 Hz a 20 kHz, ≤ 1,0 % THD +N) 185 W × 1 (a 14,4 V, 4 Ω BRIDGE 1 kHz, ≤ 1,0 % THD +N) 85 W × 2 (a 14,4 V, 4 Ω, 1 kHz, ≤ 1,0 % THD+N)

Parte trasera

Para ajustar el interruptor, si es preciso utilice un destornillador de cabeza plana.

① Subwoofer (Mono)

1 kHz, ≤ 1,0 % THD+N)

① LPF-schakelaar (low pass filter)

① Luidspreker (links)
② Luidspreker (rechts)

1-kanaals output

① Luidspreker (mono)

① Positieve (⊕) pool
② Motorcompartment
③ Voertuiginterieur
④ Zekering (30 A) × 2

BRIDGE 1 kHz, ≤ 1,0 % THD + N)

1 kHz, ≤ 1,0 % THD+N)

Visit www.pioneer.co.uk (or www.pioneer.eu) to register your product.

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