HK hk0305 schematic

Service Documents

Confidential, for authorized service technicians only!

Do not disclose this information to or share these documents

with third parties.

Vertraulich! Nur für autorisierte Servicetechniker!

Nicht zur Weitergabe an Dritte freigegeben!

TECHNICAL SERVICE:

Stamer Musikanlagen GmbH • Magdeburger Str. 8 • 66606 St.Wendel • Germany
Music & Sales P.E. GmbH • Leipziger Str. 3 • 66606 St.Wendel • Germany

Note!

The components used in this product - particularly parts affecting
safety as well as speakers and transformers - were developed and
manufactured to certain specifications. Please use original spare
parts only to ensure the product remains fully functional and safe.

Achtung!

Die in diesem Produkt verwendeten Komponenten, insbesondere
sicherheitsrelevante Teile, Lautsprecher und Transformatoren
wurden nach spezifischen Vorgaben entwickelt und gefertigt.
Bitte benutzen Sie ausschließlich Original-Ersatzteile – nur so ist
die volle Funktionalität und Sicherheit gewährleistet.

Premium

PR:0 18 SUB

Directory

features

drawing-numbers-example

standard for single wire confection

HK0305 – Premium Pro 18 SUB

exploded drawings:

layout diagrams

page: 3-8

page: 9

page: 10

page: 11

complete Rev.: page: 12-13
front grille Rev.: page: 14

crossover Rev.: page: 15

PREMIUM PR:O Manual 1.0

Table of Contents

1 Aligning Cabinets with DuoTilt™ . . . . . . . . . . 6

2 Connecting Components and Speakers . . . . . . 6

2.1 PR:O 12, PR:O 15 and PR:O 15 X
in Full-range Mode 6

2.2 PR:O 12, PR:O 15 und PR:O 15 X
in Satellite Mode with the PR:O 18 S 7

2.3 PR:O 12 M und PR:O 15 X 7

3 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . 7

4 Technical Specifications . . . . . . . . . . . . . . . . . 8

4.1 PR:O 12 8

4.2 PR:O 12 M 8

4.3 PR:O 15/ PR:O 15 X 9

4.4 PR:O 18 S 9

Welcome to the
HK Audio

®

family!

Thank you for choosing (yet another) HK Audio

®

product.

Perfect sound is the product of perfect tuning. This
is why the HK Audio

®

development team comprises
engineers specializing in acoustics, analog and digital
electronics, and mechanics. This tight-knit team
collaborates with a musicologist who tweaks the so­und of every HK Audio

®

product to suit human

auditory physiology. HK Audio

®

developers have the
perfect tool for this at their disposal—one of the
world’s most advanced acoustical measurement
labs. It enables a speaker system’s audio properties
and dynamics to be documented and analyzed in
minute detail to ultimately advance the state of the
art. Every day in our sonic foundry is a day spent
with a singular goal in mind—to forge impressive so­und reinforcement tools! So, what do mean
by impressive?

• Your voice (and every other audio signal) is rendered

accurately and authentically.

• Greater utilizable sound pressure is assured so that

the sound remains true and balanced right up to
the threshold of power-handling capacity.

• Remarkably well-balanced frequency response and

constant dynamic response requiring no further
EQ-ing.

• Listening fatigue never sets in: Disharmonic

distortion and resonance are minimized so the so­und continues to please to your audience’s ears
even after long listening sessions.

• Plug in, power up and enjoy great sound right out

of the box: HK Audio

®

systems take you there that

much faster.

5

English

Facts & Features

DuoTilt™ – making the most of sonic energy

The novel DuoTilt ™ pole mount allows sound energy
to be utilised far more efficiently. DuoTilt™ offers

7.5° and 15° angles of tilt, enabling precise speaker­to-audience alignment. Acoustic interference from
ceiling reflections is minimized, leaving the sound
cleaner, tighter, and much more articulate.

Passive Crossover
in Bass Systems

The PR:O 18 S bass bin sports a sophisticated cross­over that sends all low-end frequencies to the woofer
and all mid-range and high frequencies to the
connected satellite. This frequency separation affords
you the audio benefits of a truly homogenous sound
system, free of the pitfalls of overlapping phases that
frequently plague lesser PAs.

Modular System

The PREMIUM PR:O Series is modular so that mid/­high units may be combined with the PR:O 18 S bass
bin at will. This modularity extends to the acoustic
domain: Like every HK Audio

®

system,
PREMIUM PR:O Series components are meticulously
matched. Regardless of the PREMIUM PR:O Series
configuration, you are sure to enjoy that trademark
excellent HK Audio

®

sound!

Dynamic Protective Circuitry for the
High-frequency Driver

PREMIUM PR:O Series mid/high units and monitors
are equipped with special protective circuitry. Located
in the high-frequency signal path, it limits output
levels whenever the high-frequency signal level
approaches the 1" driver’s overload threshold.

The PREMIUM PR:O Series comprises PR:O 12 and
PR:O 15 fullrange speaker cabinets, PR:O 18 S sub­woofers and PR:O 12 M and PR:O 15 X monitors.

PREMIUM PR:O Manual 1.0

1 Aligning Cabinets with

DuoTilt™

The novel integrated DuoTilt™ pole mount allows
sound energy to be utilized far more efficiently.
With two angles of tilt to choose from, 7.5° and 15°,
the enclosure can be aimed directly at the audience.
The cabinet is stabilized at its center of gravity—no
wobbling, unwanted tilting, or unintentional turning.

Your choice of DuoTilt™ angle—7.5° or 15°—depends
on the required speaker height and the size of the
room. If you set mid/high units on fully extended
tripods or mounting poles, select 15° to minimize
ceiling reflections.

If you want to address an audience where more
listeners are farther away from the speakers, use
the HK Audio

®

DuoTilt™ at the 7.5° angle.

2 Connecting Components and

Speakers

HK Audio®speaker cords with a diameter of 2 x 2.5
sq. mm are recommended for connecting cabinets,
power amps or powered mixing consoles. Cords are
available in the following lengths:

1. LSC 3, item no.: 193283, 3 m

2. LSC 7, item no.: 193263, 7 m

3. LSC 15, item no.: 193323, 15 m

Recommended Amplifier Power Output

Connect amps rated from 600 W @ 4 W RMS to 800 W
RMS @ 4 W per amp channel to power the PREMIUM
PR:O cabinets. To have enough headroom available
for dynamic musical signals, the power amp should
deliver peak performance of at least 1,200 W @ 4 W
per channel.

Note:

An electrical connection between the cord and input
jack is not established until the Speakon connector
locks into place. Twist the Speakon connector clock­wise until it engages.

2.1 PR:O 12, PR:O 15 and PR:O 15 X
in Full-range Mode

Connect the speaker output from the powered mixer
or power amp to the input (IN) of the PR:O 12 or
PR:O 15 (X) full-range speaker cabinet.

Figure 1: 7.5° and 15° angles of tilt

Figure 2.1: Powered mixer and/or mixer and a power amp

7

English

2.2 PR:O 12, PR:O 15 and PR:O 15 X in Satellite
Mode with the PR:O 18 S

First connect the speaker output of the powered mixer
or power amp to the PR:O 18 S subwoofer’s input,
and then connect the subwoofer’s SATELLITE OUT
to the PR:O 12 or PR:O 15 full-range cabinet’s input
(IN).

Note:

The nominal impedance of systems consisting of a
combination of PR:O 18 S and PR:O 12 or PR:O 15 X
cabinets is 4 ohms!

2.3 PR:O 12 M und PR:O 15 X

Connect the monitor power amp’s speaker output
to the PR:O 12 M or PR:O 15 X monitor’s input (IN).
Depending on the type of power amp or powered mixer
that you are using, several PR:O 12 M or PR:O 15 X
monitors can be connected in parallel to one power
amp channel.

Note:

• When two PR:O 12 M or PR:O 15 X monitors are

connected in parallel, overall impedance is 4 ohms.

• When three PR:O 12 M or PR:O 15 X monitors are

connected in parallel, overall impedance is 2.7 ohms.

• When four PR:O 12 M or PR:O 15 X monitors are

connected in parallel, overall impedance is 2 ohms.

Caution:

Do not allow the overall nominal impedance of the
connected monitors to fall below the power amp
channel’s minimum impedance! If it does, you risk
destroying the power amp!

3 Troubleshooting

All speaker cords are connected, but no sound
is audible!

1 Check if the power amp is switched on and the

mixing console is connected to the power amp.

2 Check if the Speakon connectors that are plugged

into the input jacks are locked into place.
Twist the connector clockwise until it engages.

You have set up a satellite system and the mid/high
units are working fine but no low-end signal is heard
from the subwoofers!

1 Check if the PR:O 12, PR:O 15 or PR:O 15 full-range

cabinets are connected to the PR:O 18 S subwoofer’s
SATELLITE OUT. Be sure to connect the cords in
the proper sequence! First connect the speaker
output of the powered mixer or power amp to the
PR:O 18 S subwoofer’s input, and then connect the
PR:O 18 S subwoofer’s SATELLITE OUT to the
PR:O 12, PR:O 15 or PR:O 15 X fullrange cabinet’s
input (IN). For more on this, see the chapter,
Connecting Components and Speakers.

Figure 2.2: Powered mixer and/or mixer and a power amp

(Fullrange)

Figure 2.3: PR:O 12 M and PR:O 15 X monitors in action

PREMIUM PR:O Manual 1.0

4 Technical Specifications

4.1 PR:O 12

Power handling nominal (RMS): 400 W
Power handling program: 800 W
Frequency response -10 dB: 60 Hz - 19 kHz
Frequency response +/- 3 dB: 68 Hz - 19 kHz
Axial sensitivity 1W/1m (half space): 104 dB
Maximum SPL @ 1m , 10% THD: 128 dB

Loudspeaker: 1x 12"
Impedance: 8 ohms
HF driver: 1"
HF protection: Dynamic protection circuitry
Horn characteristics: 60° x 40° CD horn

Crossover frequency, passive crossover: 2 kHz,
12 dB/octave
Connections: 1 Input Speakon

®

NL 4,

1 Parallel Out Speakon

®

NL 4,

Pin assignments: pin 1+ = +; pin 1– = –

Pole-mount cup: HK Audio

®

DuoTilt™
Angles of inclination: 7.5° and 15°
Rigging points: 3 M8 recessed threaded inserts
Weight: 18 kg/ 39.5 lbs.
Dimensions (W x H x D): 39 cm 57 cm x 36 cm
15 1/4" x 22 1/2" x 14 1/4"

4.2 PR:O 12 M

Power handling nominal (RMS): 400 W
Power handling program: 800 W
Frequency response -10 dB: 63 Hz – 19 kHz
Frequency response +/- 3 dB: 70 Hz – 19 kHz
Axial sensitivity 1W/1m (half space): 104 dB
Maximum SPL @ 1m , 10% THD: 128 dB

Loudspeaker: 1x 12"
Impedance: 8 ohms
HF driver: 1"
HF protection: Dynamic protection circuitry
Horn characteristics: 60° x 40° CD horn

Crossover frequency, passive crossover: 2 kHz,
12 dB/octave
Connections: 1 Input Speakon

®

NL 4,

1 Parallel Out Speakon

®

NL 4,

Pin assignments: pin1+ = +; pin 1– = –

Pole-mount cup: none
Setup angle: 30°
Weight: 16 kg/ 35.2 lbs.
Dimensions (W x H x D): 39 cm 55,5 cm x 38 cm
15 1/4" x 21 3/4" x 15"

This is to certify that

HK AUDIO®PREMIUM PR:O

products complies with the provisions of the Directive
of the Council of the European Communities on the
approximation of the laws of the Member States
relating to electromagnetic compatibility (EMC
Directive 89/336/EEC) and the low voltage Directive
(73/23/EEC). This declaration of conformity of the
European Communities is the result of an examination
carried out by the Quality Assurance Department of
STAMER GmbH in accordance with European
Standards EN 50081-1, EN 50082-1and EN 60065
for low voltage, as laid down in Article 10 of the
EMC Directive.

Stamer Musikanlagen
GmbH*
Magdeburger Str. 8
66606 St.Wendel

Lothar Stamer Dipl.Ing.
Managing Director
St.Wendel, 03/10/05

* Stamer Musikanlagen manufactures exclusively
for HK Audio

®

.

9

English

4.3 PR:O 15/ PR:O 15 X

Power handling nominal (RMS): 400 W
Power handling program: 800 W
Frequency response -10 dB: 53 Hz – 19 kHz
Frequency response +/- 3 dB: 60 Hz – 19 kHz
Axial sensitivity 1W/1m (half space): 104 dB
Maximum SPL @ 1m , 10% THD: 128 dB

Loudspeaker: 1x 15"
Impedance: 8 ohms
HF driver: 1"
HF protection: Dynamic protection circuitry
Horn characteristics: 60° x 40° CD Horn

Crossover frequency, passive crossover: 2 kHz,
12 dB/octave
Connections: 1 Input Speakon

®

NL 4

1 Parallel Out Speakon

®

NL 4,

Pin assignments: pin 1+ = +; pin 1– = –

Pole mount: HK Audio

®

DuoTilt™
Angles of tilt: 7.5° and 15°
Rigging points: 3 M8 recessed threaded inserts

Weight:
22 kg/ 48.4 lbs. (PR:O 15)
21 kg/ 46.2 lbs. (PR:O 15 X)

Dimensions (W x H x D):
47 cm x 61,5 cm x 41 cm (PR:O 15)
18 1/2" x 24 1/4" x 16 1/4" (PR:O 15)
47 cm x 61,5 cm x 44,5 cm (PR:O 15 X)
18 1/2" x 24 1/4" x 17 1/2" (PR:O 15 X)

4.4 PR:O 18 S

Power handling nominal (RMS): 500 W
Power handling program: 1000 W
Frequency response -10 dB: 38 Hz – 150 Hz
(via internal crossover)
Frequency response +/- 3 dB: 48 Hz – 150 Hz
(via internal crossover)
Axial sensitivity 1W/1m (half space): 104 dB
Maximum SPL @ 1m (half space): 129 dB

Loudspeaker: 1x 18"
Impedance: 4 ohms

Crossover frequency, passive crossover: 150 Hz,
12dB/octave
Connections: 1 Input Speakon

®

NL 4,
Pin assignments: pin 1+ = +; pin 1– = –
1 Satellite Out Speakon

®

NL 4,

Pin assignments: pin 1+ = +; pin 1- = -

Pole mount: M20 thread base plate
Castors: 4x 100 mm (optional)
Weight: 39 kg/ 85.5 lbs.
Dimensions (W x H x D): 53 cm x 61 cm x 64 cm
20 3/4" x 24" x 25 1/4"

DRAWING-NUMBERS

EXAMPLE

HK0106-EX-R01-1A

PROJECT-NR.:
HK = HK AUDIO
HU = HUGHES&KETTNER
MP = MINDPRINT

CHARACTER:
BL = SHEET METAL / BLECH
EX = EXPLODED DRAWING / EXPLOSIONSZEICHNUNG
HZ = CABINET / HOLZGEHÄUSE
KU = PLASTIC / KUNSTSTOFF
LP = PCB / LEITERPLATTEN
SO = MISCELLANEOUS / SONSTIGES
SP = SCHEMATIC / SCHALTPLÄNE
TR = TRANSFORMER / TRANSFORMATOR
GK = WIRING DIAGRAM / GERÄTEVERKABELUNG

DEPARTMENT:
R = R&D

SERIAL NUMBER

VERSION

REVISION

Stand

W

Y

r

Standard for single wire confection.

16 B 150 638 I - 485 W Z I 1015

style 1015 according UL specifications

I = completely insulated with black shrinktube or appropriate sleeve
IT = partly insulated; only crimp connection insulated.

no marking = without insulation

Z = with additional junction
no marking = without additional junction

W = angled faston
no marking = straight faston

17. Jun 04

Faston connector brass tin-plated DIN 46245
638 = 6,3 * 0,8 [mm]
488 = 4,8 * 0,8 [mm]
485 = 4,8 * 0,5 [mm]

288 = 2,8 * 0,8 [mm]
285 = 2,8 * 0,5 [mm]

abiso = 5mm bared and tin-plated (teilabzug)
text for special constructions, (for example. 4mm ringshaped faston)

the larger faston connector always mentioned at first. (Nathan drawing number controlling)

lenght in mm within a 50 mm raster

colour
B = black (phase conductor)
R = red
BR = brown
BL = blue (neutral conductor)

= white

G = yellow-green (ground bonding/ earthing connection)

if fully insulated (I) insulation with blue shrinktube

if partly insulated (IT) use IF 602 485 .

if fully insulated (I) insulation with blue shrinktube

if partly insulated (IT) use IF 602 485

cross section
16 = AWG 16 (prefered usage)
Q1.5 = H07VK 1,5mm² (prefered usage)

wire designation:

P + lfd Nr. = AWG single wire black, red, blue, brown or white
E + lfd Nr. = AWG single wire green- yellow
L + lfd N
FQL + lfd Nr. = crossover wiring H07VK

Regarding special wirings like wiring harness or similar, drawings will be prepared and appropriate

. = twisted AWG double wire, lenght specification always in twisted condition

drawing numbers will be stored in the article archive.

Confidential, for authorized service technicians only! Do not disclose

this information to or share these documents with third parties.

TECHNICAL SERVICE:

Stamer Musikanlagen GmbH • Magdeburger Str. 8 • 66606 St.Wendel • Germany
Music & Sales P.E. GmbH • Leipziger Str. 3 • 66606 St.Wendel • Germany

Service Documents

HK0305

Premium

PR:0 18 SUB

12 E 974322

8E 974099

10E 974220

18E 976115

19E 976159

3 E 520115

13 E 974419

2E 400198

HK0305-HZ-R01-1C

16E 975415

22E 994176

5 E 972008

9E 974108

HK0305-SO-R01-1A

4E 970599

15E 974475

1E 1130

HK0305-EX-R01-1B

19

11E 974315

INDEX

1B-160707 update for service manual C. Loris

ÄNDERUNG

ZEICHNER

6E 972047

7E 974011

17 E 976009

14 E 974455

TITEL:

PR:O 18 S
EXPLODED DRAWING
COMPLETE

66606 St. Wendel / Germany

ZEICHNUNGS-NR.:

ERSTELLT VON:

GEPRÜFT/
FREIGEGEBEN VON:

WERKSTOFF:

DATEINAME:

HK0305-EX-R02-1B
C. LORIS 16.07.07

HK0305-EX-R02-1B-GESAMT

OBERFLÄCHE:

VERSION:

AM:

AM:

REVISION:

1B

BLATT:

1

BLÄTTER

2

pos. no. part-no. 1 description Beschreibung quantity

1 1130 PR:O 18 S front grille assembly PR:O 18 S Frontgitter 1

2 400198 wooden cavinet PR:O 18 S Holzgehäuse PR:O 18 S 1

3 520115 passive crossover PR:O 18 S Frequenzweiche PR:O 18 S 1

4 970599 sheet metal Lucas 2000 SPK Protection Blech Lucas 2000 Schutzbügel 1

5 972008 damping wool Dämmwolle Hochbauschvlies 1

6 972047 PE-foam tube PE-Schaumstoff-Röhrchen 14

7 974011 hexagon socket head cap screw, M6x25, black Inbusschraube M6*25 sw 6

8 974099 Mechanical locking screw, TENSILOCK W151, M6x20 Sperrzahnschraube M 6*20 vz, Tensilock W151 16

9 974108 plastic PCB spacer, 6.2x10x15, Polyamid black Dist.Hülse PE 6,2*10*15 [mm] 2

10 974220 hexagon socket countersunk head screw, M6x40, black Inbussenkschraube M6x40 sw 4

11 974315 ABC-Spax-S screws for backwall, 4x50, black Rückwandschraube, 4*50 sw 2

12 974322 ABC-Spax-S screws for backwall, 4x20, black Rückwandschraube, 4*20 sw 6

13 974419 ABC-Spax-S screws for backwall, 4x30, black Rückwandschraube, 4*30 sw 4

14 974455 ABC-Spax-S chipboard screw, panhead Z, 5x16, black Pan Head-Z ABC-Spax sw 5*16 4

15 974475 hexagon socket head cap screw, M6x50, black Inbusschraube M6*50 sw 2

16 975415 plastic PCB spacer, 6.2x10x6, Polyamid black Dist.Hülse PE 6,2*10*06[mm] 2

17 976009 rubber foot D38*H11 [mm] Gummifuss D38*H11 [mm] 4

18 976115 connector plate, M20 Befestigungsplatte M20 1

19 976159 plastic dish Premium One Griffinnenschale Premium One 2

20* 982037 sealing tape 2x6mm Iso-Zell-Band fadenvers. 2*6mm 1,76 lfdm

21* 988165 1k polyurethane glue, 310mltrs. tube Polyurethan 1-K Kleber, 310ml Kartusche xxx

22 994176 Eminence 18415A 4Ohms Eminence 18415A 4Ohm 1

INDEX

1B-160707 update for service manual C. Loris

ÄNDERUNG

ZEICHNER

66606 St. Wendel / Germany

ZEICHNUNGS-NR.:

HK0305-EX-R02-1B

ERSTELLT VON:

C. LORIS 16.07.07

GEPRÜFT/
FREIGEGEBEN VON:

WERKSTOFF:

TITEL:

PR:O 18 S
EXPLODED DRAWING
COMPLETE

OBERFLÄCHE:

VERSION:

AM:

AM:

REVISION:

1B

BLATT:

2

BLÄTTER

2

DATEINAME:

HK0305-EX-R02-1B-GESAMT

pos. no. part-no. 1 description Beschreibung quantity

1 970335 front grille Streckgitter 1

2 972085 acoustic grille foam black 15mm Akustikschaum Anthrazit 15mm 1

3 974158 snapon retaining ring (for logo) Schnellbefestiger f. Logo 1

4 980105 logo ´HK Audio´ 55x55 mm Logo ´HK Audio´ 55x55 mm 1

2E 972085

HK0305-SO-R02-1A

3 E 974158

1 E 970335

HK0305-BL-R01-1B

4E 980105

INDEX

ÄNDERUNG

ZEICHNER

C. Lorisupdate for service manual1B-160707

66606 St. Wendel / Germany

ZEICHNUNGS-NR.:

HK0305-EX-R01-1B

ERSTELLT VON:

C. LORIS 16.07.07

GEPRÜFT/
FREIGEGEBEN VON:

WERKSTOFF:

DATEINAME:

HK0305-EX-R01-1B-FRONTGITTER

TITEL:

PR:O 18 S
EXPLODED DRAWING
FRONT GRILLE

OBERFLÄCHE:

VERSION:

AM:

AM:

REVISION:

1

BLATT:

B

1

BLÄTTER

1

4321

D

JS1

+

INPUT TO SPEAKER

JS2

L1

3.90mH/1.12mm_LI

C1
MKP-68U/250V

C2
MKP-68U/250V

–

C

C3
MKP-68U/250V

JS3

JS6

JS8

+

–

+

D

C

TO SATELLITE CONNECTOR

B

JS7

–

B

A

All rights reserved. No part of this schematic may be reproduced, stored in a retrieval system, transmitted in any form or
by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the author.

1 2 3 4

NA = not assembled part ----- EX = exclusive part, no alternative allowed

HT = high temperature part, assemble with distance from PCB

Title:

HK0305 -- PR:O18 Sub

66606 St. Wendel / Germany

Number: Version: Revision:

Drawn by: Date:

Michael Bohlender

Thorsten Bender

PCB No.:

Filename: HK0305-SP-R01-1A-DTP-Schaltplan.sch

HK1701-LP-R01-1C, or later

Crossover Circuit

1HK0305-SP-R01-1A A

08.03.2005

Date:

08.03.2005

Page:

1Checked by:

1

Pages

A