i was reading a thread in the sq section bout line drivers...do they really improve sq? should i get one? and where should it be placed and grounded in the car? (i know it has to be near the hu) thanks..hope for input guys

 

where should it be placed and grounded in the car? #1 move the car to bc
i'm getting one

 

it should be as close to the headunit as possible. but spl guys almost always mount them in the back so as to have full control of it from the back of the car. spl guys will adjust them all the time. i know we do. mind you our head unit is back there too. we also have a voltage rectifier on the power to our headunit and line driver. the alternator is a very noisy piece of equipment and this is a way to eliminate noise. it allows us to have 100% full control and absolutely no noise.

the rectifier is something that we built. i dont think you will find one quite like the one that qwe have. although i have seen a few out there.

 

does a line driver need a power wire and a ground wire? just like an amp..?
and is there ne ideas of where it is usually mounted near the hu

 

8100.0256A
Instruction and Installation Manual
Tantrum LD22 - LD66
Phoenix Gold International, Inc.
9300 North Decatur • Portland, OR 97203 Tel: 503.286.9300 • Fax: 503.978.3380 • www.phoenixgold.com
TANTRUM LINE DRIVER 22 - 66
SPECIFICATIONS
Frequency Response 20Hz to 20kHz (+/-1dB)
THD 0.02% @ 1kHz
S/N Ratio (A Weighted) 110dB
Input Impedance 10 kOhms
Output Impedance 30 Ohms
Output Voltage Dimensions (LD22) 4.5” L x 2.4” W x 1.5” H
Dimensions (LD66) 5.1” L x 4.7” W x 1.5” H
out in
POWER
r b b
L
R
MADE IN AMERICA
LINEDRIVER 22
series
out out out in in in
L
R
MADE IN AMERICA
POWER
r b b
series
LINEDRIVER 66 0 +30
Remove Cover of LD22
or LD66 to Access Output
Gain Controls
OUTPUT GAIN CONTROL
L R
L
R
Controls and Functions
1. POWER CONNECTOR: Make connections using the supplied detachable plug. Connect the B+ terminal to battery positive, the B- terminal to chassis
ground, and the remote terminal to a switched 12v source or remote wire. An internal fuse protects against reverse polarity.
2. POWER LED: Lights when the unit is operational.
3. RCA INPUTS: Connect to the headunit’s RCA outputs.
4. OUTPUT GAIN CONTROL: Adjusts signal gain from 0 to +30dB. Left and rignt channels have seperate controls.
5. RCA OUTPUTS: Connect to the amplifier’s or signal processor’s RCA inputs.
Installation and Tuning
Install the TLD22 or TLD66 as close as possible to the headunit and make sure its not touching any of the vehicle’s metal. Please note you must remove
the cover of the TLD22 or TLD66 to adjust the gain controls. The cover snaps together and can be removed by carefully pulling it apart from the base.
1. Set all system input gain and output level controls to minimum including the TLD22 or TLD66 itself.
2. Set tone, balance, and fader of the headunit to the center or flat positions.
3. Using a very clear and dynamic recording, set the volume control on the headunit to maximum undistorted output (on most headunits 80% of maximum).
4. Disconnect all channels connected to the TLD22 or TLD66 except for the one channel you wish to adjust. Only adjust one channel at a time. This
makes it obvious when a specific channel has reached unwanted distortion levels.
The next few steps depend on what type of system you have:
TO AMPLIFIER(S) ONLY:
5. Slowly turn up the TLD22 or TLD66’s output gain control until the speakers begin to distort.
6. If the speakers have not reached maximum undistorted output (which is very unlikely), then and only then turn up the amplifier’s gain control until
the speakers are driven to distortion.
7. Reduce the TLD22 or TLD66’s output level or the amplifier’s gain control just enough to remove the distortion. Repeat for additional channels.
TO SIGNAL PROCESSORS AND THEN TO AMPLIFIER(S):
5. Slowly turn up the TLD22 or TLD66’s output gain control until the maximum allowable input voltage of the next processor in the signal path is reached.
6. Adjust the input gains and output levels of each signal processor between the TLD22 or TLD66 and the amplifier to maintain equal input and output
levels (unity gain). Start with the first processor after the TLD22 or TLD66 and work your way down the signal path to the amplifier.
7. Turn up the last signal processor output level control before the amplifier until the speakers begin to distort. If this adjustment cannot drive the speakers
to distortion, then and only then turn up the amplifier’s gain control until the speakers are driven to distortion.
8. Reduce the last processor’s output level or the amplifier’s input gain control just enough to remove the distortion. Repeat for additional channels.

 

thanks a lot....

 

I mounted my AudioControl Overdrive in my glovebox and ran the power/ground/remote wires to the back of the HU. Works good, sounds even better. I am using the line driver to increase signal to the amp running my components as opposed to the sub amp. The components simply sound better this way (gain is all the way down on the 4-channel amp).

 

is it bad to have 3 remote wires connected together? cuz right now i have 2 remote wires from my two amps connected to the hu...
and also do u need a good ground for the line driver? right now i dont know where to put the ground..ideas would help..imthinking of putting it in the glovebox too

 

i would also like to know the answer to this. will a line driver add significant stress, if any, coming off of the remote lead along with other amps?

 

I would put in a relay on the remote out of your deck. That way you wouldnt risk overloading the amp turn on. Let the relay do all the work. A simple SPDT relay from any automotive outlet (NAPA, etc) will have them instock with the harness. Connections are in the link

Using a 30 amp SPDT relay, connect terminal #87 to constant 12 volts positive with a fuse rated to the sum of the additional accessories you've added and the components you need to turn on. (If you have two fans rated at 5 amps each and a neon light rated at 10 amps, you would use a 20 amp fuse plus 200 ma for each amplifier and processor.) Connect terminal #85 to ground, terminal #86 to the remote turn on wire from the head unit, and terminal #30 to each accessory with an appropriate fuse.