Alto OEX-400S Users Manual

USER'S MANUAL

DSP

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MP3PLAYER

00

03:08

OEX-400S

STEREO FULL-RANGE COMPACT PORTABLE SOUND SYSTEM
WITH 24-BITS DIGITAL EFFECTS

HA TOM
(H1 4)

OEX-400s

EQ EQ EQQEQ

RS TS

DS/FDS/XD P

SPFXD P

/X

M M(E E E E E

/X

PAN PA BLANP N

2 Bt i t l f t

EVL

MAS ER

LVEL EVL EELLEELEEL

345/621

L

R

CD/TAPE

PKOUT

NO. 1, Lane 17, Sec. 2, Han Shi West Road, Taichung 40151, Taiwan

SEIKAKU TECHNICAL GROUP LIMITED

http://www.altoproaudio.com Tel: [phone]

email: [e-mail] Fax: [phone]

All rights reserved to AL TO . All features and content might be changed

without prior notice. Any photocopy, translation, or reproduction of part of this

manual without written permission is forbidden. Copyright 2009 Seikaku Group

c

www.altoproaudio.com

Version 1.2 DEC. 2010

English

NF03374-1.2

9. WARRANTY

1. WARRANTY REGISTRA TION CARD

To obtain Warranty Service, the buyer should first fill out and return the enclosed
Warranty Registration Card within 10 days of the P urchase Date.
All the information presented in this Warranty Registration Card gives the
manufacturer a better understanding of the sales status, so as to provide a
more effective and efficient after-sales warranty service. Please fill out all the
information carefully and genuinely, miswriting or absence of this card will void
your warranty service.

2. RETURN NOTICE

2.1 In case of return for any warranty service, please mak e sure that the product
is well packed in its original shipping carton, and it can protect your unit from
any other extra damage.

2.2 Please provide a copy of your sales receipt or other proof of purchase with
the returned machine, and give detail information about your return address
and contact telephone number.

2.3 A brief description of the defect will be appreciated.

2.4 Please prepay all the costs involved in the return shipping, handling and
insurance.

3. TERMS AND CONDITIONS

3.1 LTO warrants that this product will be free from any defects in materials
and/or workmanship for a period of 1 year from the purchase date if you
have completed the Warranty Registration Card in time.

3.2 The warranty service is only available to the original consumer, who purchased
this product directly from the retail dealer , and it can not be transferred.

3.3 During the warranty service, L TO may repair or replace this product at its
own option at no charge to you for parts or for labor in accordance with the
right side of this limited warranty.

3.4 This warranty does not apply to the damages to this product that occurred
as the following conditions:

Instead of operating in accordance with the user's manual thoroughly, any abuse
or misuse of this product.
Normal tear and wear.
The product has been altered or modified in any way.

Damage which may have been caused either directly or indirectly by another

product / force / etc.
Abnormal service or repairing by anyone other than the qualified personnel or
technician.

And in such cases, all the expenses will be charged to the buyer .

3.5 In no event shall L TO be liable for any incidental or consequential damages.
Some states do not allow the exclusion or limitation of incidental or
consequential damages, so the above exclusion or limitation may not apply to
you.

3.6 This warranty gives you the specific rights, and these rights are compatible
with the state laws, you may also have other statutory rights that may vary
from state to state.

20

8. TECHNICAL SPECIFICATION

IMPORTANT SAFETY INSTRUCTION

FAT analysis

MP3 DECODE

Electric Specification

Power Section (SPK.OUT)

Distortion

Frequency Response
SNR (Line IN)
Output level
Power continuous 1KHz,THD 1%

Power EIAJ 1KHz,THD 1%

Thermal protection

Short protection

Voltage protection

Speaker Section

Passive System Type
Continuous Power
Peak Power
Max SPL at 1M
Frequency Response
Impedance
Crossover Frequency
Protection
Coaxial Type Low Frequency Driver
High Frequency Driver
Coverage HxV
Connectors

Statis Power Consumption

No Output powerstate at 230V

Dielectric Strength

Between Live+Negative Earth

Between Live+Negative IN/OUT
Terminal(Positive+Negative)

Insulation Resistance

Between Live+Negative
Earth(A Voltage of 500VDC)
Between Live+Negative
IN/OUT Terminal(Positive+Negative)
(A Voltage of 500VDC)

Power supply

Main voltage

Physical

Dimension (W D H)
Net Weight
Cross Weight

Supports FAT 16 and FAT 32, Supports VFAT (long file
name), Supports multi partion up to 1
Supports sample rates 8KHz, 32KHz, 11.025KHz,

22.05KHz, 44.1KHz, 12KHz, 24KHz, and 48KHz.
Supports bit rate 8 to 320 kbps and VBR (Variable Bi
Rate) except free format
Frequency Response 20Hz~20KHz
Output level 0 dB
S/N Ratio > 90 dB
Distortion (at 1 KHz) <0.05%

<0.1% (at 1W & 1 KHz)
<0.15% (at 100W & 1 KHz)
20Hz to 22kHz, +/ 2dBu (at 100W)

100 dBu

30.5dBu +/ 1dBu (+10 Led Light & COMP.Start)
2X200W@4
2X110W@8
2X250W@4
2X130W@8
over temperature power limiting
thermal shutdown
Temperature controlled 12V DC fan output
short circuit protection
overload output protection
over voltage protection
DC offset shutdown

2 way Coax vented box
150W AES standard (each speaker)
300W Peak (each speaker)

117.5dB SPL calculated
65Hz 20KHz at 10dB
8 nominal

2.3KHz/12dB/Oct
Electronic on the Driver
10 Woofer / 2 Voice Coil
1 Neodymium Driver / 1 Voice Coil
70 Hx70 V Spherical hom
Power Input with mono Jack

32W

1500VAC at Test,Frequency 50/60Hz,Leakage
Current:5mA for 1minute
3000VAC at Test,Frequency 50/60Hz,Leakage
Current:5mA for 1minute

2M

4M

100 120VAC~60Hz
220 240VAC~50Hz
100~120V: T10A 250V
220~240V: T5A 250V

984mm*440mm*460mm (38.7 x17.3 x18.1 )

19.61kg

25.41kg

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

TO REDUCE THE RISK OF ELECTRIC SHOCK
PLEASE DO NOT REMOVE THE COVER OR
THE BACK P ANEL OF THIS EQUIPMENT .
THERE ARE NO PARTS NEEDED BY USER
INSIDE THE EQUIPMENT. FOR SERVICE,
PLEASE CONTACT QUALIFIED SERVICE
CENTERS.

This symbol, wherever used, alerts you to the

presence of un insulated and dangerous voltages
within the product enclosure. These are voltages that
may be sufficient to constitute the risk of electric
shock or death.

This symbol, wherever used, alerts you to

important operating and maintenance instructions.

Please read.

Protective Ground Terminal
AC mains (Alternating Current)

Hazardous Live Terminal
ON: Denotes the product is turned on.
OFF: Denotes the product is turned off .

CAUTION

Describes precautions that should be observed to
prevent damage to the product.

1.

Read this Manual carefully before operation.
Keep this Manual in a safe place.

2.

Be aware of all warnings reported

3.

with this symbol.

4.

Keep this Equipment away from water and
moisture.

5.

Clean it only with dry cloth. Do not use
solvent or other chemicals.

6.

Do not damp or cover any cooling opening.
Install the equipment only in accordance with
the Manufacturer's instructions.

Power Cords are designed for your safety. Do

7.

not remove Ground connections! If the plug
does not fit your AC outlet, seek advice from
a qualified electrician. Protect the power
cord and plug from any physical stress to
avoid risk of electric shock. Do not place
heavy objects on the power cord. This could
cause electric shock or fire.

Unplug this equipment when unused for long

8.

periods of time or during a storm.

Refer all service to qualified service personnel

9.

only.Donotperformanyservicingotherthan
those instructions contained within the
User's Manual.

To prevent fire and damage to the product,

10.

use only the recommended fuse type as
indicated in this manual. Do not short circuit
the fuse holder. Before replacing the fuse,
make sure that the product is OFF and
disconnected from the AC outlet.

WARNING

T o reduce the risk of electric shock
and fire, do not expose this equipment
to moisture or rain.

Dispose of this product should
notbeplacedinmunicipalwaste
and should be separate collection.

Move this Equipment only with a cart,

11.

stand, tripod, or bracket,
specified by the
manufacturer, or
soldwiththe
Equipment. When
a cart is used, use
caution when
moving the cart /
equipment
combination to
avoid possible
injury from tip over.

12.

Permanent hearing loss may be caused by
exposure to \ extremely high noise levels.
The US. Government's Occupational Safety
and Health Administration (OSHA) has
specified the permissible exposure to noise
level.
These are shown in the following chart:

HOURS X DAY SPL EXAMPLE

Small gig

8
6
4
3
2
1,5
1
0,5
0,25 or less

According to OSHA, an exposure to high SPL in
excess of these limits may result in the loss of
heat. To avoid the potential damage of heat, it is
recommended that P ersonnel exposed to
equipment capable of generating high SPL use
hearing protection while such equipment is
under operation.

The apparatus shall be connected to a mains
socket outlet with a protective earthing
connection.

The mains plug or an appliance coupler is used
as the disconnect device, the disconnect device
shall remain readily operable.

90

train

92

Subway train

95

High level desktop monitors

97

Classic music concert

100
102
105
110
115

Rock concert

19

IN THIS MANUAL

8. TECHNICAL SPECIFICATION

1. INTRODUCTION................................................................................1

2. FEATURES.......................................................................................2

3. QUICK START..................................................................................2

4. CONTROL ELEMENTS......................................................................3

5. INSTALLATION & CONNECTION......................................................14

6. BLOCK DIAGRAM...........................................................................16

7. PRESET LIST..................................................................................17

8. TECHNICAL SPECIFICA TIONS..........................................................18

9. WARRANTY ..................................................................................20

1. INTRODUCTION

Congratulations! Now you are the owner of the OEX-400S. The OEX-400S is a
plastic reinforced trolley that includes a versatile mixer with DSP effects, L&R
full range speaker cabinets. Besides, this package also includes some essential
accessories such as power cord, signal cables, speaker cables. In order to
ensure high versatility and excellent audio performances, the OEX-400S adopts
optimal crossover frequency and advanced power amplifier technologies.

The L&R speaker cabinets are tightly hooked on the trolley. When you operate
the OEX-400S, first of all take care of the setting of the L&R cabinets . It is
the development of ALTO's experience and knowledge in speakers field, in order
to faithfully reproduce sound for each kind of applications.

Inlaid in OEX-400S panel there's a compact extractable 8-channel mixer, which
adopts 24-bit A/D&D/A converters and 24-bit DSP effects with accurate
algorithms (16 presets). It also provides 4 MIC inputs with ultra low noise
microphone pre-amplifiers, natural 2-band EQ; AUX send/return and 2TK in/out
and optional MP3 and 9 band EQ and so on.

In a word, it is ideally suited for live sound applications, small venues
applications, live recording and many other musical purposes. In order to get
the best performances from your OEX-400S, we recommend you to thorou­ghly read this owner's manual before installation and operation.

1 18

Mono channels(CH1-CH4)

Microphone Input

Frequency Response:
Distortion( THD&N)
Sensitivity
Maximum Voltage Gain

SNR( Signal to Noise Rate )
Phantom power
Line Input
Frequency Response:
Distortion( THD&N)
Sensitivity
Maximum Voltage Gain

Stereo channels(CH5/6)

Line Input
SNR( Signal to Noise Rate )
Frequency Response:
Distortion( THD&N)
Sensitivity
Maximum Voltage Gain

Impedance

Microphone Input
All Other Input
Tape Out
All Other Outputs

Equalization

High( )Mono channels
High(Stereo channels)
Low(Mono channels)
Low(Stereo channels)

DSP Section

A/D And D/A Converters
DSP Resolution
Type of effects

Presets
Controls

Crosstalk

Adjacent Input
Input to Output

Main Mix Section

TRACK,Aux,Phones Output

Master Output(to AMP)
Main EQ(Option)
Noise (Bus noise)

Compressor

Threshold
Ratio

Mp3 Section(Option)

USB HOST

Electronically Balanced, discrete Input Configuration(SW
to MIC)
20Hz to 22kHz, +/ 2dBu

0.02% At 1kHz
30 dBu

51 dB CH MIC INPUT HEAD PHONE OUT
51 dB CH MIC INPUT TAPE OUT
51 dB CH MIC INPUT FX SEND

100 dBu
+45V~+49V with switch control (Mic Pin2/Pin3 And Pin1)
Electronically Balanced(SW to LINE)
20Hz to 22kHz, +/2dBu

0.02% At 1kHz
0dBu
21 dB CH LINE INPUT TAPE OUT

Electronically Balanced(SW to LINE)

100 dBu
20Hz to 22kHz, +/ 2dBu

0.02% At 1kHz
0dBu
20 dB FX RETURN TAPE OUT
20 dB RCA TAPE INPUT TAPE OUT

3.9k Ohms
10k Ohms or Greater
1k Ohms
120 Ohms

15 dB @12 kHz
15 dB @12 kHz
15 dB @80 Hz
15 dB @80 Hz

24 Bit
24 Bit
WARM HALL, BRIGHT HALL, WARM ROOM, BRIGHT
ROOM, VOCAL1, VOCAL2, VOCAL3, PLATE, STEREO
DELAY1, STEREO DELAY2, REV+DELAY1, REV+DELAY2,
REV+DELAY3,REV+DEALY4,REV+CHORUS1,REV+
CHORUS2
16
16 Posistion PRESET Selector
CLIP LED
MUTE SWITCH with LED Indicator

75 dB @ 1KHz (CH1 6)
70 dB @ 1KHz (STEREO L/R,CH1 4,PAN:panned hard

left or right)

Output level 0dBu Unbalanced, 1/4" Jacks
Max out +22dBu Unbalanced, 1/4" Jacks
Output level 5dBu (CN10,CN11)
+/ 12dB @ 9 bands(63,125,250,500,1K,2K,4K,8K,16KHz)

78dB @ 20Hz~22KHz (channel & MAIN level at 0dB,

other at minimum,DSP mute)

7dBu
6:1

"Builds in the USB FULL speed(12Mbps)HOST
control function"
Supports the USB mass storage class