Blaupunkt PA2100 manual Common Ground, Radio Outputs R, Ganged 20k/ch

CONNECTIONS & CONTROLS

POWER ON LED

CROSSOVER MODE: LP - FULLRANGE - HP

(Crossover is either in Low-pass, Full-range, or High-pass mode)

HIGH-PASS FREQUENCY: “50 - 250Hz” (Frequencies above this setting will be passed through)

LOW-PASS FREQUENCY: “50 -250Hz” (Frequencies below this setting will be passed through)

GAIN CONTROL : “0.3 - 6.0 Vrms”

(this is the input voltage necessary at this position for full output power)

BASS BOOST: “ON/OFF” (+10dB when ON)

"Floating Ground"	(LOOP-THRU) INPUTS
Radio Outputs	(BR)
	R
	L

		"HLA1"
L (+)	white	High Level Adaptor

L (–) white/black

NOT black

USED

gray

R (+)

POWER ON LED - This light will turn on when the amplifier receives a +12V turn on signal from the radio. If the amp is properly wired, but the light does not turn on, there may be a short circuit condition that the amp is protecting itself from.

BASS BOOST - This control provides additional bass in the 45Hz area to give a stronger low end “feel” to the bass. Once switched on, this will also allow the amp to be driven into distortion sooner so the user must be aware.

GAIN CONTROL - The gain control allows for a range of 0.3-6Volts input. This means that if the setting is a 0.3V, it only takes 0.3Volts to drive the amp to full output. (Such a low setting allows for the amp to be easily overdriven and more susceptible to noise so a mid-position is highly

R (–)

gray/black

recommended for most radios.)

"Common Ground"

(LOOP-THRU) INPUTS

Radio Outputs R

(BR)

L

		"HLA1"
L (+)	white	High Level Adaptor
	white/black
NOT USED
Radio chassis or		black
common speaker

LOW-PASS FREQUENCY - If the mode selector is in the “LP” position the amplifier passes only low frequency sound. The upper limit for such sound is set via this control. For bass, a value just below 100Hz is usually best.

HIGH-PASS FREQUENCY - If the mode selector is in the “HP” position the amplifier passes only mid and high frequency sound. The lower limit for such sound is set via this control. A common setting is just above 100Hz.

CROSSOVER MODE - Depending upon the system design chosen, you need to set the amplifier in the proper “mode” be it LP, Fullrange, or HP. The low-pass and high-pass frequency settings are explained above. The

ground

NOT USED

gray/black

“full-range” setting simply allows for the amp to pass all audio frequencies without any kind of crossover filter application. (This is common with

R (+)	gray
(L)	(GND)	(R)	REMOTE GAIN
			CIRCUITRY
"Ganged" 20k/ch
Resistor pack

6x9” fullrange coaxial speakers for example.)

REMOTE GAIN CIRCUITRY

Should the installer wish to create their own remote gain control, or attempt to daisy chain the gains of multiple amps, refer to the adjacent circuit design for proper connection. This should ONLY be attempted by a very highly qualified installation technician. If improperly done DAMAGE WILL OCCUR to the amplifier and WILL NOT be covered by warranty! (We put this information in this manual because of the interest of our highly skilled Blaupunkt installers - the average consumer should NOT attempt this on their own!)

You should ONLY loop the SIGNAL pin to other amps - DO NOT carry the ground and +12V pin voltages to adjacent amps.

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