JK Audio Pureformer Manuale utente

JK Audio

Pureformer™

Stereo Isolation Transformer

User Guide

ii Pureformer Stereo Isolation Transformer

Welcome

Thank You

Thank you for purchasing the

JK Audio Pureformer™. Please read

this guide for instructions on using it.

Getting Assistance

If you have technical or application

questions:

In the US & Canada, call us toll free

at: 800-552-8346

All other countries dial: 815-786-2929

(M-F 8:30-5:00pm Central Time Zone)

Email us at: [email protected]

Or, check out our FAQ section for

answers to common questions.

Limited Warranty

Pureformer is covered by a 1year

warranty to be free from defective

workmanship and materials. To obtain

service, contact JK Audio by phone

or email for return authorization.

Once authorized, you will carefully

pack and ship the faulty product and

all accessories to us. You will pay

for shipping to us and we will pay for

return back to you.

This warranty does not cover

damages due to accident, weather,

re, ood, earthquake, misuse,

unauthorized repairs or modications,

or damages occurred in shipping, only

defective workmanship or materials.

There are no expressed or implied

warranties which extend beyond

the warranty here made.

Contents iii

Overview 1

FAQs 2

Technical Information 3

Contents

Note: While Pureformer was designed to be very rugged and durable, it is not waterproof

and care should be taken to keep the unit dry.

iv Pureformer Stereo Isolation Transformer

Line In Line Out

Just Insert Between your Sound Card and your Audio Mixer or Amplier

High-Quality, Low-Distortion, 600 ohm Audio Transformers

Features

Overview 1

Introducing Pureformer

The Pureformer provides hum and noise reduction for sound cards and audio

equipment, and removes ground loops and DC paths that can cause hum and

signal breakup.

Isolate the Problem

The Pureformer isolates the electrical grounds of two pieces of audio equipment.

This is especially important in the case of computer audio cards connected to

high quality/low noise audio equipment. The computer electrical ground is often

lled with noise from disk drive activity and data transmission.

Many audio cards use the same electrical ground for the computer and the audio

signal. When the computer audio card is connected to your studio equipment, the

electrical noise from the computer can leak into the rest of your audio system.

The Pureformer completely isolates the electrical ground of the two systems and

only allows audio signals to pass through. Pureformer cannot remove noise once

it has been mixed with the audio signal, so it is important to nd and treat the

source of each problem.

Overview

Pureformer Stereo Isolation Transformer

FAQs

Will the Pureformer eliminate the 60 cycle AC hum I have on my

recordings?

No. The Pureformer cannot remove noise after it has already entered the audio

signal. It will only prevent noise from entering before the recording takes place.

Technical Information 3

Line In

RCA: 600 ohms, 250 mV RMS (-10 dBu nom)

Line Out

RCA: 600 ohms, 250 mV RMS (-10 dBu nom)

Misc.

Frequency Response: 20 Hz-20 kHz, ± 0.1 dB

Insertion Loss: 0.8 dB

Size: 3.6" x 1.8" x 1.3" (9.2 x 4.6 x 3.3 cm)

Weight: 5 oz

Specications

Technical Information

Pureformer™

Stereo Isolation Transformer

User Guide Version 4/16/22

JK Audio, Inc.

1311 E 6th St.

Sandwich, IL 60548

United States

Telephone: 815.786.2929

Toll Free: 1.800.jkaudio

Fax: 815.786.8502

www.jkaudio.com

JK Audio

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