ZAPCO ASP-L2T 2-Channels RCA Line Noise Filter; Signal to Noise>130dB, THD+Noise< 0.1%
 NEW; From official Zapco distributor.

RCA line noise has been a major issue for car audio  installers from the beginning of car audio.

The RCA signal from a head unit is a very low level signal, and it is fairly easy for a noise source like an ECM or other component of the cars electrical system to enter the signal path through the RCA cables. This is even more problematic with today's very low output head units. To make matters worse, different equipment manufacturers use different methods of referencing the signal ground to the main electrical ground of the car.  If these methods do not match well they create a "ground loop" causing noise (whine) in the signal.

The car stereo installers can solve the noise problem by tracing all the ground paths to eliminate the ground loop and sometimes they may need to make many changes in the grounds of the different pieces of equipment to find the best solution. Unfortunately this can be a very time consuming process, often taking more time to solve the noise than it  took to install the system.

Solution 1977 to 2106: The ubiquitous Ground Loop Isolator has been to "easy" answer since the mid 70's. The good news - the Ground Loop Isolator does indeed work to eliminate the ground loop noise. The bad news - the Ground Loop Isolator destroys the signal by acting as a high-pass filter and eliminating bass frequencies. It also adds multiple layers of distortion to the signal.  Why does the old Ground Loop Isolator damage the signal? Because it was designed ONLY to stop the noise with no thought to signal quality.  Low cost, low efficiency components were combined to provide  a low cost "quick fix" to the noise problem. So for all these years installers have used the old Ground Loop Isolator as the last resort when they don't have the time (or possibly the ability, depending on the equipment) to solve the grounding problems. They have been forced to sacrifice signal quality to stop the noise.

Solution 2017: Zapco introduces the ASP-L2T signal noise eliminator. The ASP-L2T utilizes custom designed and custom wound high efficiency transformers and other high SQ components to remove the direct connection between the different reference ground systems and eliminate noise,  without affecting the bass content of the signal and without adding distortion into the signal.

Performance: Signal to Noise is over 130dB, and  THD+Noise is less than 0.1%. Signal level and impedance of the output are exactly the same as the input, and the frequency response of the ASP-L2T will even exceed the response of the input signal from the head unit. In fact the ASP-L2T can even be considered a "conditioner" to improve the signal from the head unit before it arrives at the amplifier. Maximum performance upgrades occur between 500mV and 1 Volt.

-> Delivery, return and guarantee policy. 

Pay attention to different delivery methods! 

Standard delivery - Venipack/ GLS delivery in Europe. Delivery time varies 4-8 working days, with tracking

Expedited delivery - DHL express service. 1-4 working days worldwide, with tracking

Import duties

Import duties, taxes and charges are not included in the item price
Please check with your country's customs office to determine what these additional costs will be prior to buying.

These charges are normally collected by the delivering (courier service) company or when you pick the item up.

Return

If you've changed your mind or you expected something different you have 4 weeks (20 working days) to submit returning the item. Delivery fee for returning the item lies on you then. Packing and postage fees are non-refundable!

 To avoid this situation please double check the items description and contact us if necessary. 

Item should be the same set and packing as you receive it and without hard usage marks(condition good to sell as a new) like scratches from screws or cut wires.

 To avoid this situation please double check the items description and contact us if necessary. 

 If item has any fault or you received something different you saw in the items description you have rights to ask for returning the item and providing the correct one. Don't hesitate to ask for help if something is wrong. 

If you have trouble with installing first contact we before you damage speakers or your car.

Goods comes with 1-year guarantee

The product are warranted, under normal functioning conditions.

The warranty is not valid if:

• the product is damaged by incidents, installations and/or improper use, or by any other causes not depending on materials or manufacturing defects;

• the product is modified or tampered with by unauthorized people;

• its serial number has been altered or cancelled. 

With the RCA filter You will receive a guarantee sheet with a date of purchase and serial number. RCA filter cannot be returned without guarantee sheet! Item should be the same set and packing as you receive it and without hard usage marks(condition good to sell as new) like scratches on the speakers body from fixing.


Who we are:

Authorized distributor in Latvia:

AUDIO SYSTEM, FOCAL, GLADEN, HERTZ, MOSCONI, Audison, PHD,

Connection, German-Maestro, DENSION, STP, GROM, BLACKVUE, MTX,

Calearo, STREETWIRES, ETON, Trioma and ...

12volt-shop. We are specialize in Car Audio equipment installation and electronic repair for 20 years. Located in Latvia/Riga

 

Business seller information

Unitehs SIA (Ltd)

Ganu 3

Riga

LV1010 

Phone/ Whatsapp: +371 26333820 (EN/RU/LV) 

Value Added Tax Number (VAT LV):

LV40003536822