498245
26
Zoom out
Zoom in
Previous page
1/28
Next page
26
4 Channel Amplifier - Applications
GP1000.4 / GP1500.4
One 4 Channel Amplifier in 3 Channel Mode with
Stereo Front Speakers and Mono/Subwoofer
Interconnect cable checklist:
• Connect the head unit line outputs with good quality RCA to RCA cables to the INPUT
CH1&2 / CH3&4 of the amplifier.
• Connect the Front Speakers with the terminal block (SPEAKER OUTPUT / + CH1 - and +
CH2 -) of the amplifier.
• Connect the Subwoofer with the terminal block (SPEAKER OUTPUT / + BRIDGED - from
Channel 3&4) of the amplifier.
•The minimum final speaker impedance must not be below 2 Ohms Stereo and 4 Ohms
Mono. Too low speaker loads result in too high heat dissipation and may cause the amplifier
run into protection.
• Please observe speaker channel and polarity as printed by the speaker terminal block.
Incorrect phasing of the speakers results in total loss of bass response.
Caution
Be careful not to connect speaker (-) to the ground or vehicle chassis.
X-OVER SELECT (Front Speakers Channel 1&2)
If larger than 20 cm speakers are used, the FULL position is recommended.
For all smaller speakers (Ø8.7cm - Ø16cm) the Highpass-Position (HP) is recommended, which eliminates the lowest
frequencies and protects the speakers from damage. Set the crossover-frequency between 60Hz - 150Hz, depending of the
size of the installed speakers. The Highpass adjustment can be done with the FREQ - ADJUST control.
X-OVER SELECT (Subwoofer Channel 3&4)
In Mono/Subwoofer-Mode select the Lowpass-Position (LP), which eliminates the higher frequencies. The recommended
crossover frequency ranges between 60 - 100Hz, depending on the size and response of the Subwoofer. The Lowpass
adjustment can be done with the FREQ - ADJUST control.
INPUT LEVEL (CH1/2 & CH3/4)
• Turn the INPUT LEVEL controls on the amplifier to 5V position.
• Turn the head unit volume control to about 80-90% of its full setting.
• Turn the INPUT LEVEL controls clockwise until you hear some distortion.
• Then turn back the INPUT LEVEL controls slightly until you can hear clean sound.
BASS BOOST (CH1/2 & CH3/4)
• Turn the BASS BOOST control from the Front Speakers (Channel 1&2) into “0dB” - position.
• The BASS BOOST - Control from the Subwoofer (Channel 3&4) increases the bass level at 45 Hz max. +12dB.
Caution! Please use the Bass-Boost carefully. The additional boost may result in clipping or overload.
MODE SELECT
• The MODE SELECT - switch from CH1/CH2 must be in “4” - position and the MODE SELECT - switch from the CH3/CH4
must be in “MONO” - position.
26


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Crunch GP1500.2 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Crunch GP1500.2 in the language / languages: English, German as an attachment in your email.

The manual is 4,83 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info