Gold Note HP-7 Manual de usuario

GOLD NOTE®

HP-7

ITALIAN PREAMPLIFIER WITH HEADHPONE AMPLIFIER

Owner’s Manual

MANUFACTURED IN ITALY

TEL.+39.0571.675005 FAX.+39.0571.675013

HP-7 Italian Preamplifier with Headphone Amplifier

Table Of Contents

-Congratulations & Introduction 3

-Contents of Packaging 4

-Back Panel Features 4

-Operating Conditions & Front Panel 5

-HP 7 Main Functions – Upgrade with PSU 7 6

-RemoteControl 7

-Technical Specifications 8

-Warranty, Customer Service, Warnings & F.A.Q. 9

-Troubleshooting 10

-F.A.Q. 11

VERY IMPORTANT: Please read the following instructions carefully before installing your Gold Note® unit

HP-7 Italian Preamplifier with Headphone Amplifier

Congratulations

Thank you for having purchased a Gold Note® product.

Introduction

The Gold Note HP-7 is a top quality headphone amplifier

featuring a high class preamplifier stage with high end

audio active volume control.

The Double Mono Active Volume control is designed around

a 200 step 0.5dB top class 1% single resistors per channel

enabling high end audio performance.

The innovative design developed for the HP-7 allows

matching with wide impedance headphones from 16Ωto

1000Ωwithout the need of any manual adjustment.

The HP-7 enables superior audio purity with any audio

system and as all Micro line units featuring an optional

external super Power Supply (PSU).

The modern convenient compact luxury look helps

introducing the unit into any audio system or building a full

Micro Line system offer a complete line of high class

convenient products.

Congratulations & Introduction

HP-7 Italian Preamplifier with Headphone Amplifier

(Contents of Packaging)

1pc. PREAMPLIFIER UNIT

1pc. REMOTE CONTROL

1pc. DETACHABLE AC POWER CHORD

INSTRUCTIONS MANUAL

(Set-Up Instructions)

-Open all the cartons inside the main box and look that all the components listed are present.

-Carefully remove the HP-7 Preamplifier with Headphone Amplifier chassis from the shipping box and foam.

-Connect the audio cable (not supplied) and the AC Power Chord supplied.

HP-7 back panel

o(1) PREAMPLIFIER Output XLR - Balanced

o(2) PREAMPLIFIER Output RCA – Unbalanced

o(3) LINE Output XLR - Balanced

o(4) LINE Output RCA – Unbalanced

o(5) LINE Input XLR – Balanced

o(6) LINE Input RCA – Unbalanced

o(7) PSU IN – Power Supply connector

o(8) IEC PLUG with FUSE - 100 -240 Volt - 50/60Hz with 1 A fuse

Content of Packaging – Back Panel Features

HP-7 Italian Preamplifier with Headphone Amplifier

(Operating Conditions)

The HP-7 has been designed for use in Hi-Fi systems in sheltered locations. It ought therefore to be protected from any

eventual variations in temperature and humidity. Avoid to use the unit close to radiators or other strong heat sources,

electrical and electronic motors, switched on mobile phones etc. The location in proximity of other audio components is not

theoretically critical, but you should nevertheless pay attention to this. In any case, take care to unplug completely the unit

every time you need to move it, or to move the turntable on which it is installed.

HP-7 Front Panel

o(9) ON/OFF - Master switch, it turns the unit ON/OFF completely.

o(10) VOL - - reduce the volume.

o(11) RCA led Light – Showing the RCA input line stage activation. Pressing and holding together for 5

seconds the Key (10) and (12) it switches internal or optional external power supply.

o(12) VOL + – raise the volume. Pressing and holding together for 5 seconds the Key (10) and (12) it

switches internal or optional external power supply.

o(13) XLR led Light – Showing the RCA input line stage activation.

o(14) VOLUME STEP– 0.5dB Volume Stepped Display.

o(15) HEADHPONE SOCKET – 6.3mm Headphone socket

o(16) BLUE LED Light – It shows the unit ON/OFF

o(18) RED/GREEN LED Light – With RED light ON the unit is powered by the internal power supply.

With Green light ON then unit is powered by optional external power supply.

(SWITCHING THE INPUTS)

To Switch the input from front panel is necessary to press together the buttons (10) & (11) [VOL- and

VOL+]. The Mute is activated exclusively from remote control MUTE button.

Operating Conditions

HP-7 Italian Preamplifier with Headphone Amplifier

(HP-7 Headphone 6,3mm Socket)

The HP-7 features great quality headphone having a 6.3mm plug. The special proprietary technology and top quality

components used to design the unit allow the amplifier driving any kind of headphone set up from 16Ωto 1000Ωhaving an

extra flexible usability.

The large power supply allows perfect driving any headphone with the right control available only on sophisticated amplifier.

(HP-7 Preamplifier with Double Mono Active Volume Control)

The Double Mono Active Volume Control system of this unit is made with a Gold Note proprietary designed developed with

a Texas Instruments PGA2310 devices feature fine resistors step-by-step DOUBLE MONO high end performance for

superior resolution, lowest distortion and perfect channel balance.

The active preamp stage allows a +30dB gain for best resolution and perfect unit control; the volume control range is from [-

90dB to +30dB] finely stepped by high precision 0.1% resistors.

Due to the Double Mono set-up the Blacknote active Volume Control features also a sonically ideal balance control solution.

The Volume is conveniently lighted up on the HP-7 display to check it up on real time.

The quality of the Gold Note Double Mono Active Volume Control technology enable unsurpassed sonic performance for

traditional passive audio potentiometer.

The HP-7 features also a fixed line analogue output both RCA and XLR balanced for convenient connectivity to other input

amplifiers

PSU-7 or PSU-9

EXTERNAL POWER SUPPLY UNIT

(Optional)

The HP-7 maybe set up even with an optional external Power Supply Unit, the PSU7 AC powered or the PSU-9 double

battery powered via the professional Tyco connector (7) present on the back panel.

The PSU-7 is a large inductive power supply decouple the HP-7 from the AC completely for superior sound performance.

The PSU-9 is a double battery 7A each power supply works purely exclusively DC for for uncompromised sound

performance.

HPMainFunctions

HP-7 Italian Preamplifier with Headphone Amplifier

(REMOTE CONTROL)

The standard remote control is here below: The Optional deluxe aluminum remote mod.2257

(SWITCHING THE REMOTE HANDSET MODEL)

From the unit Off turn it on holding pressed the button (11) VOL +. The display will flash T1 to confirm the “STANDARD”

remote is been selected. T2 to confirm the 2257 remote is been selected.

PLEASE NOTE: to let work the unit with the 2257 remote it is necessary to select the right source.

The AP-7 requires AMP selection on the [AMP CD DAC PRE] rail.

Remote Control Function

HP-7 Italian Preamplifier with Headphone Amplifier

Technical Specifications

MAIN DETAILS 

PREAMPLIFIER & HEADPHONE AMPLIFIER All Matching Impedance Stability

FREQUENCY RESPONSE 10Hz – 50KHz @ +/- 3dB 

DYNAMICRANGE >120dB

THD (Total Harmonic Distortion) <0.001% @ 20Hz-20KHz 

RATIO SIGNAL TO NOISE-105dB 

VOLUME CONTROL Double Mono Active Volume Control

AUDIO INPUTS 

ANALOGUE INPUTS Stereo RCA andXLR balanced

INPUT SENSITIVITY 450mV

INPUT IMPEDANCE 47KΩ

HEADPHONE INPUT IMPEDANCE Proprietary Variable Design

POWER AMPLIFIER INPUT Stereo RCA

AUDIO OUTPUTS 

PRE OUT One stereo RCA + XLR balanced

FIXED OUT One stereo RCA + XLR balanced

OUTPUT IMPEDANCE 0.02Ω

CONNECTIVITY 

REMOTE INFRA-RED RC5 proprietary code variable

POWER 

MAINS SUPPLY 100V ▪115V ▪230V ▪50 or 60Hz (depending on market destination not convertible) 

POWER SUPPLY Hybrid with Temperature Automatic Stabiliser

POWER CONSUMPTION 50watt Max

UPGRADES 

EXTERNAL PSU Plug & Play Power Supply Unit

EXTERNAL AC FILTER Dumbo AC

Other Gold Note Lucca Power Chord

PHYSICAL 

DIMENSIONS 200mm L x 80mm H x 260mm D

TOTAL WEIGHT 4Kilos (9Lbs.)

FINISHES 

FRONT PANEL Brushed Black or Silver anodised aluminium

CASE Black powder coated

Technical details may vary without notice

Technical Specifications

HP-7 Italian Preamplifier with Headphone Amplifier

(Warranty Registration)

To validate the warranty is necessary to register the unit on the Gold Note internet web site within 15 days from the purchase on the appropriate area of the

web site: http://www.goldnote.it/

If the unit is not registered correctly or is been purchased from a different country of the purchaser origin/home the unit will not be covered by any warranty

and the eventual registration refused.

The warranty does not does not cover in any case: Tubes, Phono Cartridge Styli and Batteries.

(Customer Service)

All GOLD NOTE® products are the result of meticulous technological research, and consequently their correct functioning is guaranteed. In spite of this it is

possible that problems may emerge which non-specialist users cannot resolve. In this case, contact your dealer who will advise you on how to resolve the

problem.

Do not return any object directly to the factory or to the national distributor or without being authorized to do so. In such cases both GOLD NOTE® and the

distribution agents operating within your territory decline responsibility of any kind.

Please Note: Descriptions and technical characteristics may vary in any moment without notice.

Warnings

1. Do not disassemble any part of the product.

2. Do not use any part of the product for other purposes.

3. For service and problems of any kind, contact qualified Gold Note personnel.

4. Protect the product from rain and humidity and keep away from heat sources, electric and electronic motors etc.

5. The power Chord supplied must be used only on this unit.

6. Gold Note does not have responsibility for any improper use of this unit

Warranty Certificate – Customer Service – Warnings - F.A.Q.

HP-7 Italian Preamplifier with Headphone Amplifier

Troubleshooting

SYNPTOM DESCRIPTION CAUSE REMEDY

SPEAKER HUMMING

PROBLEMS

The speakers hum when the

unit is connected to the

system

The unit is correctly coupled with

the Ground on DC.

Be sure your area and personal

environment are well grounded

eventually isolate the ground Pin

of the power chord plug for

verification.

The interconnect input and/or

output cables are not shielded.

Be sure to always use shielded

cables for amp connections.

SWITCHING ON/OFF BUMP The unit bumps any time is

switched ON or OFF

No protection on the audio signal

path to guarantee the best audio

performance. It is important to

notice that it does not produce any

risk even if the bump is high



THE UNIT DOES NOT WORK

WHEN IS SWITCHED ON

The power chord is disconnected

from the AC wall plug

Connect it being sure that the

AC wall plug works fine

The interconnect cables are not

properly connected to the unit.

Connect them properly

The fuse is blown Substitute the fuse with one of

the same value

Be sure you selected the right

Input on the amplifier

F.A.Q.

ACTION DESCRIPTION HOW TO ADJUST IT

MATCHING THE HEADPHONE

IMPEDANCE

Your headphone does not need any

IMPEDANCE adjustment

16Ωto 1000ΩHeadphone can be used only setting the

volume properly

CLEANING THE UNIT The Unit is dirty and needs to be

cleaned

With EXTREME care use ONLY diluted alcohol and a

very soft 100% cotton cloth to sweep dust and stains

out.

Any acid or not extremely soft cloth will irreversibly

damage the amp fine aesthetic.

Do not use any alcohol to clean the unit anodised

label, or printed parts. Only dry cloth is allowed.

Troubleshooting & F.A.Q.

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