Kustom KPM7250T Owner's Manual

Owner’s Manual

KPM7250T

Congratulations, you now own Kustom's KPM7250T Powered Mixer ,
a 24-bit digital, portable and powerful 200 W att PA mixer/amplifier.

The Kustom KPM7250T is easy to operate and easy to understand. Before operating your
KPM7250T , please read and understand all setup and safety instructions.

ENGLISH

IMPORTANT SAFETY INSTRUCTIONS

Danger
Exposure to extremely high noise levels may cause a permanent
hearing loss. Individuals vary considerably to noise induced hearing
loss but nearly everyone will lose some hearing if exposed to sufficiently
intense noise for a sufficient time. The U.S. Government's
Occupational Safety and Health Administration (OSHA) has specified
the following permissible noise level exposures:

DURATION PER DAY (HOURS) 8 6 4 3 2 1
SOUND LEVEL (dB) 90 93 95 97 100 103

According to OSHA, any exposure in the above permissible limits could
result in some hearing loss. Ear plugs or protectors in the ear canal or over
the ears must be worn when operating this amplification system in order to
prevent a permanent hearing loss. If exposure in excess of the limits as
put forth above, to insure against potentially harmful exposure to high
sound pressure levels, it is recommended that all persons exposed to
equipment capable of inducing high sound pressure levels, such as this
amplification system, be protected by hearing protectors while this unit is in
operation.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO

AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR.

THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE PRESENCE
OF NON-INSULATED "DANGEROUS VOLTAGE" WITHIN THE
PRODUCT'S ENCLOSURE THAT MA Y BE OF SUFFICIENT MAGNITUDE
TO CONSTITUTE A RISK OF ELECTRIC SHOCK TO PERSONS.

THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE PRESENCE
OF IMPORTANT OPERATING AND MAINTENANCE (SERVICING)
INSTRUCTIONS IN THE LITERATURE ACCOMPANYING THE UNIT.

APPARATUS SHALL NOT BE EXPOSED TO DRIPPING OR SPLASHING
AND THAT NO OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES,
SHALL BE PLACED ON THE APPARATUS.

NOT REMOVE CHASSIS. NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.

1. Read all safety and operating instructions before using this
product.

2. All safety and operating instructions should be kept for future
reference.

3. Read and understand all warnings listed on the operating
instructions.

4 . Follow all operating instructions to operate this product.

5. This product should not be used near water, i.e. Bathtub,
sink,swimming pool, wet basement, etc.

6. Only use dry cloth to clean this product.

7. Do not block any ventilation openings, It should not be placed flat
against a wall or placed in a built-in enclosure that will impede the
flow of cooling air.

8. Do not install this product near any heat sources ;such
as,radiators, heat registers, stove or other apparatus (including
heat producing amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding­type plug. A polarized plug has two blades with one wider than the
0ther.A grounding-type plug has two blades and a third grounding
prong. The wide blade or the third prong are provided for your
safety If the provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.

10. Protect the power cord being walked on or pinched, particularly at
Plugs, convenience receptacles and the point where they exit
from the apparatus. Do not break the ground pin of the power
supply cord.

11 . Only use attachments specified by the manufacturer.

12. Use only with the cart, stand, tripod, bracket, or table specified by
the manufacturer or sold with the apparatus. When a cart is used,
use caution when moving cart/apparatus combination to avoid
injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused for
long periods of time.

14. Care should be taken so that objects do not fall and liquids are
not spilled into the unit through the ventilation ports or any other
openings.

15. Refer all servicing to qualified service personnel. Servicing is
required when the apparatus has been damaged in any way;
such as, power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not operate normally
or has been dropped.

16. WARNING: To reduce the risk of fire or electric shock, do not
expose this apparatus to rain or moisture.

2

FRENCH

Danger
L‘exposition a des niveaux eleves de bruit peut provoquer une perte
permanente de l’audition, Chaque organisme humain reagit
differemment quant a la perte de l’audition, mais quasiment tout le
monde subit une diminution de I’acuite auditive lors d’une exposition
suffisamment longue au bruit intense. Les autorites competentes en
reglementation de bruit ont defini les expositions tolerees aux niveaux
de bruits:

DURE EN HEURES PAR JOUR 8 6 4 3 2 1
INIVEAU SONORE CONTINU EN dB 90 93 95 97 100 103

Selon les autorites, toute exposition dans les limites citees ci-dessus,
peuvent provoquer certaines pertes d’audition. Des bouchons ou
protections dans l’appareil auditif ou sur l’oreille doivent etre portes lors
de l’utilisation de ce systeme d’amplification afin de prevenir le risque
de perte permanente de l’audition, Dans le cas d’expositions
superieures aux limites precitees il est recommande, afin de se
premunir contre les expositions aux pressions acoustiquese I evees
potentielIement dangeure u ses, aux personnes exposees aux
equipements capables de delivrer de telles puissances, tels ce
systeme d’amplification en fonctionnement, de proteger l’appareil
auditif.

ATTENTION

RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR.

ATTENTION: AFIN DE LlMlTER LE RISQUE DE CHO ELECTR/QUE, NE

CE SYMBOLE A POUR BUT D'A VERTIR L'UTILISATEUR DE LA PRESENCE
DE VOLTAGE DANGEREUX NON-ISOLE A L'INTERIEUR DE CE PRODUIT
QUI PEUT ETRE DE PUISSANCE SUFFISAMMENT IMPORTANTE POUR
PROVOQUER UN CHOC ELECTRIQUE AUX PERSONNES.

CE SYMBOLE A POUR BUT D'A VERTIR L'UTILISATEUR DE LA PRESENCE
D'INSTRUCTIONS D'UTILISATION ET DE MAINTENANCE DANS LES
DOCUMENTS FOURNIS A VEC CE PRODUIT.

AFIN DE REDUIRE LES RISQUÉ D'INCENDIE ET DE DECHARGE
ELECTRIQUE, NE PAS EXPOSER CET APPAREIL A LA PLUIE OU A
L'HUMIDITE.

PAS ENLEVER LE CHASSIS. NE CONTIENT PAS DE
PIECES POUVANT ETRE REPAREE PAR L’UTILISATEUR.
CONFER LE SERVICE APRES-VENTE AUX
REPARATEURS

IMPORTANTES INSTRUCTIONS DE SECURITE

1. Lire avec attention toutes les recommandations et précautions

d'emploi avant d'utiliser ce produit.

2. Toutes les recommandations et précautions d'emploi doivent être

conservées afin de pouvoir s'y reporter si nécessaire.

3. Lire et comprendre tous les avertissements énumérés dans les

précautions d'emploi.

4. Suivre toutes les précautions d'emploi pour utiliser ce produit.

5. Ce produit ne doit pas être utilisé près d'eau, comme par exemple

baignoires, éviers, piscine, sous-sol humides ... Etc.

6. Utiliser exclusivement un chiffon sec pour nettoyer ce produit.

7. Ne bloquér aucune ouverture de ventilation. Ne pas placer le

produit tout contre un mur ou dans une enceinte fernée, cela
gênerait le flux d'air nécessaire au refroidissement.

8. Ne pas placer le produit près de toute source de chaeur telle que

radiateurs, arrivées d'air chaud, fourneaux ou autres appareils
générant de la chaleur (incluant les amplificateurs producteurs
de chaleur) .

9. Ne pas négliger la sécurité que procure un branchement polarisé

ou avec raccordement à la terre, Un branchement polarisé
comprend deux fiches dont l'une est plus large que l'autre. Un
branchement à la terre comprend deux fiches plus une troisième
reliée à la terre. Si la fiche secteur fournie ne s'insert pas dans
votre prise de courant. consulter un 'électricien afin de remplacer
votre prise obsolète.

10. Protéger le cordon d'alimentation de tout écrasement ou

pincement, particulièrement au niveau des fiches, des
réceptacles utilisés et à l'endroit de sortie de l'appareil. Ne pas
casser la fiche de terre du cordon d'alimentation.

11. Utiliser uniquement les accessoires spécifiés par le constructeur.

12. Utiliser uniquement avec le chariot de transport, le support, le

trépied, la console ou la table spécifiés par le constructeur ou
vendus avec l'appareil. Lors de l'utilisation d'un chariot, bouger
avec précaution l'ensemble chariotlappareil afin d'éviter les
dommages d'un renversement.

13 Débrancher cet appareil lors d'orages ou s'il n'est pas utilisé

pendant une longue période.

14. Des précautions doivent être prises afin qu'aucun objet ne tombe

et qu'aucun liquide ne se répande à l'intérieur de l'appareil par
les orifics de ventilation ou n'importe quelle autre ouverture.

15. Pour toutes interventions techniques s'adresser à un technicien

qualifié.L'intervention technique est nécessaire lorsque l'appareil
a été endommagé de n'importe quelle façon, comme par
exemple si le cordon secteur ou sa fiche sont détériorés,si du
liquide a coulé ou si des objets sont tombés à l'intérieur de
l'apparei1,si l'appareil a été exposé à la pluie ou à l'humidité, s'il
ne fonctionne pas normalement ou s'il est tombé.

16. ATTENTI0N:Pour réduire le risque d'incendie ou de choc

electrique ne pas exposer l'appareil à la pluie ou à l'humidité.

3

SETUP DIAGRAM A

MIXER FRONT

15 16 17 18 19

1
2

3
4

5
6

7 8 10 12 14139 11

MODEL KPM7250T

EXPLANATION OF CONTROLS

FRONT PANEL

1) Effects Controls: Adjust the amount of signal that is sent to the digital effects processor.

20
21
22
23

24

25

26

2) Monitor Controls: Adjust the amount of signal that is sent to the Master Monitor control.

3) Tone Controls: Adjust the balance of bass and treble from the individual channels.

4) Main Controls: Adjust the volume of the individual channel.

5) Line Input: Input connection for 1/4” line level sources (Keyboards, drum machines, etc.).

6) Microphone Inputs: Input connection for balanced Low-Z signals (Microphones, etc).
7-8) Instrument Inputs: Input connection for instruments (Acoustic Guitars, Electric Guitars, etc.).

9) Effects Send: Output connector used to send a line level signal from the KPM7250T to an

outboard effect. This connector takes a signal feed from the individual channel’s Effects
Controls.

10) Aux Return: Input connector used to receive a signal from an outboard effect or signal source.
The signal from this connector is fed to the effect Master(16) control. The Effect Master Control
(16) will adjust the volume of this signal source.

11) Preamp Output: Line level output for the preamp. This control takes a signal feed from the
Main Master Control.

12) Power Amp Input: Input connector for the Power Amp. NOTE: When a line level signal
source is inserted into this connector, the signal from the KPM7250T’s individual channels are
disconnected and will not function. Only the outboard signal source will be amplified.

4

13) Monitor Output: Output connector to send a line level signal to a monitor amplifier or powered
monitor.

14) Footswitch: Standard Tip-Ring-Sleeve wired footswitch to turn digital effects on and mute the
channels of the KPM7250T. Tip connection turns the Effects on and off. The Ring connection
will mute the individual channels.

15) Digital Effects Indicators: These LED’s show what digital effects have been chose. NOTE:
No LED’s are lit when the Effects are muted via footswitch.

16) Effects Master: Controls the volume of digital effect signal to the Main Master Control.

17-18)Effect Select: These two push buttons will scroll through the digital effect options. Pressing

the UP button will advance the digital effect selection to the next selection higher than the
present selection. Pressing the DOWN button will advance the digital effect selection to the
next selection lower than the present selection. NOTE: When scrolling past the top or bottom
of the effects selection, the effects selection will automatically go to the oposite end of the
selections.

19) Equalizer: These controls adjust overall tone of the mixer. Each slide control adjusts the
amount of specific frequencies + or -12 dB.

20) Main Master: Controls the total volume on the individual channels. NOTE: The playback
volume is not affected by the Main Master control.

21) Power On Indicator: Power is on when LED is lit.

22) Monitor Master: Controls the total volume of the individual channel’s monitor sends. NOTE:

The Monitor output is still active when Main channels are muted via footswitch.

23) Channels ON Indicator: Channels are active when LED is lit.

24) Playback Volume: Controls the volume from the Playback RCA input jacks (25). NOTE: The

Playback feature is not affected by the Main Master control and will remain active even when
the mute function is active via the footswitch.

25) Playback RCA Jacks: Input connector CD, Tape or any line level stereo signal source.

Allows you to play recorded music through the mixer.

26) Record RCA Jacks: Output connectors to send line level signal to a record device such as a

tape recorder or computer.

5

QUICK-START SETUP INSTRUCTIONS

Making Connections:

• Connect 1/4” non-shielded speaker cables to the speaker out jacks on the rear
of the KPM7250T (29 & 30), then connect the opposite end of each speaker
cable to the speaker enclosures.

• Connect instruments and microphones into the appropriate input connectors
located on the front of the mixer. Low Impedance Microphones (6), Line Level
(5), High Impedance Instruments (7 & 8), tape/CD (25).

•Μake sure the power switch is turned to the off position and attach the AC
power cable into the fused AC input (27) located on the rear of the mixer.

Master Section:

•Τurn the Main Master control (20), and Playback Master (24) counter clockwise.

•Αdjust the master equalizer slide controls (19) to the center 0dB position.

Input Section:

•Τurn all channel volume controls (4) counter clockwise.

• Turn all tone controls (3) to the 12 O’clock position.

6

28

SETUP DIAGRAM B

MIXER REAR

27

MODEL KPM7250T

29
30

REAR PANEL

27) AC Cord Connector: Insert the AC cord (supplied) firmly into the AC connector. NOTE:
Replace the AC power cord if protective jacket is damaged or round ground pin is damaged
or removed.

28) Power Switch: The KPM7250T is turned ON when the switch is in the UP position. Press the
switch to the DOWN position when not in use.

29-30)Speaker: Connectors for 8 Ohm speaker cabinets each. NOTES: #1 Do not connect more

than two 8 Ohm speaker cabinets to the output of the KMP7250T mixer/amplifier. Total load
must not go below 4 Ohms. #2. It is not necessary to use both A & B output jacks. The
KPM7250T will operate at 8-16 Ohms.

PLAYING

• Press the Power switch (28) to the ON position.

•Τurn the Main Master control (20) to the 12 O’clock position.

•Τurn the Main control (4) clockwise on each channel to achieve the desired volume. (One

channel at a time)

•Αfter you are satisfied with the basic mix of the individual channels, use the Main Master
control (20) to adjust the overall volume of the mixer.

• Use the Graphic Equalizer slide controls (19) to control feedback and contour the audio to the
overall desired sound.

• Select a digital effect (if desired). The KPM7250T offers a choice of eight 24-bit digital effects.

Double Take Delay
Small Hall Slapback
Large Room Chorus Reverb
Small Room Chorus

•Αdjust the effects controls on the individual channels (1) to desired volume. Adjust the effects
Master control to achieve the total desired amount of effects in the mix.

• Reset the Main master control (20) to desired volume.

That’s It. Enjoy...

Servicing: The AC Fuse is accessible underneath the AC cable connector . No user serviceable parts

inside. Please contact your nearest Authorized Kustom Service Center or Kustom Inc.
directly for service.

Kustom Inc. Customer Service can be reached at [phone] ext. 504,
[e-mail] or locate an Authorized Service Center from the W orld Wide
Web at www .kustom.com.

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SIGNAL FLOW DIAGRAM

8

Model KPM7250T KPM7250T Powered Mixer

Output Power 200W 4 ohm @ 5% THD

160W 4 ohm @ 0.4% THD

Frequency Response 20Hz - 20 kHz Actual response is tailored to speaker cabinet for

accurate acoustical response.

Total Harmonic Distortion Less than 0.4% Measured at 1VRMS (0dBv) at record output, effects

send, or insert output

Hum & Noise -115dB Mic Input, Rs=150 ohm, 20-20kHz

-60dB Residual Noise, all level controls 0% (minimum)

-50dB Nominal System Noise, all level controls at 50%

System Gain All measurements made at 1kHz
77dB Mic to Power Amp Out (Ch 1 - Ch 5)
60dB Line to Power Amp Out (Ch 1 - Ch 7)
70dB Instrument to Power Amp (Ch 6 – Ch 7)
36dB Playback to Power Amp
50dB Mic to Record Output
44dB Mic to Effects Send
50dB Mic to Preamp Output
50dB Mic to Monitor Output

Crosstalk 80dB Channel to channel, 1kZ

Input Channel Equalization Special curve that adjusts bass, mid, and treble frequencies

Master Equalization 100 to 10kHz, 7 Band, 1 Octave Graphic, all ±12dB

Digital Effects 24 bit DSP, 8 effects: Delay, Slapback, Chorus Reverb, Chorus, Double

Take , Small Hall, Large Room, Small Room

Phantom Power +15V Applied to all Mic inputs thru 3.3K resistors

Footswitch Digital effects ON/OFF and Channel ON/OFF (playback remains active)

Power Requirements USA/Canada 120VAC/60Hz, 160W nominal

Europe 230VAC/50Hz, 160W nominal
UK 230VAC/50Hz, 160W nominal
Australia 240VAC/50Hz, 160W nominal
Japan 100VAC/50-60Hz, 160W nominal

Dimensions mm/kg

inches/pounds

210 (Height) x 480 (Width) x 270 (Depth) / 11 kg
8 1/4 (Height) x 19 (Width) x 10 5/8 (Depth), 24 lbs

KPM7250T

Specifications

9

EC Declaration of Conformity

We: Kustom Musical Amplification Inc.

4940 Delhi Pike
Cincinnati, OH 45238
Tel: [phone] Fax: [phone]

Declare that the product

Product name: Kustom

Product model number: KPM7250T

to which this declaration relates is in conformity with the following standards;

EN55013 (A12) : 1995 Limits and methods of measurement of radio disturbance characteristics of broadcast receivers and

associated equipment.

EN55020: 1995 Electromagnetic immunity of broadcast receivers and associated equipment.

EN61000-3-2: 1995 Limits for harmonic current emissions (equipment input current < 16A per phase).

EN61000-3-3: 1995 Limitation of voltage fluctuations and flicker in low voltage supply systems for equipment with

rated currents < 16A.

EN55103-1: 1995 Electromagnetic Compatibility - Product family standard for Audio, Video Audio-visual and

entertainment Lighting Control Apparatus.

EN60065: 1994 Safety requirements for main operated electronic and related apparatus for household and similar

general use.

Following the provisions of EU Council Directive(s): 72/73 EEC and 89/336/EEC.

We the undersigned, hereby declare that the equipment specified above conforms to the aforementioned directive(s).

Name of authorized person: James Brown, Chief Engineer

Signature:______________________ Date: 22 November 2004

Kustom Amplification Inc.
4940 Delhi Pike
Cincinnati, OH 45238
Tel: [phone] Fax: [phone]

10

Kustom Amplification Inc., 4940 Delhi Pike, Cincinnati, OH • USA
[phone] Web: www.kustom.com