Welcome to
Technolink TC-780LC
Stereo Line Level Preamp / Booster
Available in BLACK or SILVER Finish

Do you have a line level source (TV audio, MP3 player, video game etc) which simply isn't loud enough? One that forces you to crank up your receiver or amp volume control, simply to match your other sources? Or perhaps you need to run a long line between your TV audio line out and your receiver on the other side of the room, but find too much level is lost, or worse, interference from hum or a radio station is induced. This product is the fix. The TC-780LC provides up to 20dB of gain with any line level source, allowing longer cable runs or that "bump" you need to cure low volume issues. Or you can use it to add a volume control between a line level source and a power amp which has no level adjustment of its own. The 5-pin DIN in/out jacks match those found on older European brands including Bang & Olufsen, Tandberg and Revox, while the RCA jacks match virtually everything else. Connecting to the front panel miniplug jack automatically bypasses the rear inputs, allowing temporary hookup of iPods and MP3 players for listening or recording. Now available in both BLACK and SILVER! Click on the images to enlarge.


If connecting to a computer, simply substitute it in the diagram for the amplifier shown below.
Use the sound card's LINE  INPUT jack,
NOT the MIC IN. 

Below are three common usages. Click on the diagram to enlarge.


Any of the following labelled amplifier/receiver/minisystem input jacks can be used; 
 (use the L&R
AUDIO  jacks so labelled; ignore the actual yellow VIDEO  jack if present).

  • freq response 20hz-20,000hz +/- 0.5dB, S/N ratio >80dB
  • CE certified; LED power indicator 
  •  gold plated jacks and black anodized metal casing
  • 150mV input  produces 2.0V output (at max volume setting)
  • both RCA and DIN (5 pin) inputs and outputs
  • Front panel stereo minijack for connecting MP3s, iPods
  • Power switch (on level control)
  • 12 volt DC operation; will work anywhere in the world
  • AC adaptor and one meter RCA patch cord are included
  • Dimensions 180mm x 73mm x 37mm 
  • One year defective repair or exchange warranty

$49.50 plus shipping (see below)



The TC-780LC is NOT intended for mobile use; connecting it to a vehicle
electrical system  causes specific internal damage which is not covered by warranty.

Our TC-780i model is recommended for mobile / vehicle applications.

750 plugs
Ready to purchase?
We offer multiple payment methods.
Authorize.Net Merchant - Click to Verify

First choose a payment method by clicking on a logo. Your transaction is then completed on the payment processor's secure website. Because NO personal or payment info is entered here, your online purchase is as secure as possible.  Authorize.net and Paypal are both happy to accept any major credit card. Both provide immediate online and email payment verification; tracking and customs form information is provided when we ship to you (most orders are sent same or next business day).

$49.50 plus shipping
  • US Priority Mail shipping is $6.00
  • Canada USPS shipping is $11.00
  • Worldwide USPS shipping is $17.00
Items shipped outside the USA may be subject to import duty, fees and tariffs as determined by the destination country; these  costs are usually collected at the time of  delivery and are the buyer's liability. We do not mark merchandise as "gifts" or otherwise falsify customs declarations.