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© 2007

Wohler Technologies, Inc.

   ALL rights reserved

Introduction

Congratulations on your selection of a Wohler Technologies product. We are confident it represents the best performance and value
available, and we guarantee your satisfaction with it.

If you have questions or comments you may contact us at:

Wohler Technologies, Inc.

31055 Huntwood Avenue

Hayward, CA  94544

Phone:

(510) 870-0810

     Fax: 

(510)  870-0811

US Toll-Free: 

1-888-596-4537

www.wohler.com    [email protected]

1)

Read these instructions.

2)

Keep these instructions.

3)

Heed all warnings.

4)

Follow all instructions.

5)    Do not use this apparatus near water.

6)    Clean only with dry cloth.

7)    Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.

8)       Do not install near any heat source such as radiators, heat registers, stoves, or other apparatus (including

amplifiers) that produce heat.

9)      Do not defeat the safety purpose of the polarized or grounding-type plug.  A polarized plug has two blades

with one wider than the other.  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 from being walked on or pinched, particularly at plugs convenience receptacles

and the point where they exit from the apparatus.

11)   Only use attachments/accessories 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 the 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)  Refer all servicing to qualified service personnel.  Servicing is required when the apparatus has been

damaged in any way, such as when 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.

15)  Do not expose this apparatus to rain or moisture.

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

Important Safety Instructions

CAUTION!

In products featuring an audio amplifier and speakers, the surface at the side of the
unit, where the audio amplifier heat sink is internally attached, may get very hot after
extended operation.  When operating the unit excercise caution when touching this
surface and ensure that external materials which may be adversely affected by heat
are not in contact with it. There is a Hot Surface label (see diagram) attached to the
aforementioned surface of the product.

Содержание AMP2-AMPPM

Страница 1: ...l Technical Observations PPM Meter Specifications and Level Threshold Settings VU Meter Specifications and Level Threshold Adjustment AMP2 VM Series Interconnect Block Diagram AMP2 AM Series AMP2 AMVU and AMP2 AMPPM 2U Analog Monitor Speaker Unit with Two VU or PPM Mechanical Level Meters Two Balanced and Two Unbalanced Inputs Two Loop Thru Outputs and Phase Indication Document P N 821540 Rev A 1 ...

Страница 2: ...eing walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments accessories 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 the cart apparatus combination to avoid injury from tip ...

Страница 3: ...hnologies Inc ALL rights reserved 3 AMP2 AM Series User Manual P N 821540 Rev A Sect 1 General Features and Specifications General Features and Specifications Description Features Applications Specifications Section 1 ...

Страница 4: ...ensive magnetic shielding allows placement immediately adjacent to video monitors with no color impurities The AMP2 AM series models are specifically intended for those who prefer mechanical level meters when visually monitoring audio signals These units are capable of audibly monitoring two analog source channels through their stereo speaker systems while simultaneously visually monitoring both c...

Страница 5: ... Ω Ω Ω Frequency Response Sixth Octave Input Level for Maximum Output Volume Full On AnalogInputimpedance Hum and Noise analog Distortion Electrical Distortion Acoustic Input Overload Converted analog out S N Converted analog out THD Magneticshielding Powerconsumption AverageMaximum ACMainsinput Weight Dimensions HxWxD XLR balanced andRCA unbalanced 104 dB SPL 10 W transient 14 W continuous 25 W t...

Страница 6: ... 2002 Wohler Technologies Inc ALL rights reserved 6 AMP2 AM Series User Manual P N 821540 Rev A ...

Страница 7: ... 2002 Wohler Technologies Inc ALL rights reserved 7 AMP2 AM Series User Manual P N 821540 Rev A Operation Installation Front Panel Features Rear Panel Features Section 2 ...

Страница 8: ... 2002 Wohler Technologies Inc ALL rights reserved 8 AMP2 AM Series User Manual P N 821540 Rev A Section 2 Operation ...

Страница 9: ...ibrations external to the unit Mechanical Bracing Even though the unit is fairly heavy the chassis is securely attached to the front panel at eight points along its surface not just at the four corners of the chassis ears This feature will reduce or eliminate rear bracing requirements in many mobile portable applications The weight of internal components is distributed fairly evenly around the uni...

Страница 10: ...lugged into this jack the internal speakers will mute This jack accepts a standard 1 4 phone type stereo plug Volume Control Pot This controls the loudness of the audio reproduced by the internal speakers or connected headphone Clock wise rotation of this control increases the loudness of the monitored audio Phase Indication LEDs These three LEDs offer instant verification of phase polarity condit...

Страница 11: ...nc ALL rights reserved 11 AMP2 AM Series User Manual P N 821540 Rev A Section 2 Operation Figure 2a Front Panel Features 1 3 1 4 1 2 5 6 7 2 WOHLER TECHNOLOGIES POWER FAST OUT FAST IN PHASE AVG MONITOR PANEL ANALOG AUDIO AMP2 AM ...

Страница 12: ... Analog Input BALANCED IN Connectors These two 3 pin female XLR connectors left and right accept standard analog audio signals and are configured for balanced 200K Ω connections Pinout information for these connectors is shown below Analog Output LOOP THRU Connectors These two 3 pin male XLR connectors output an analog audio loop through of the signals entering the inputs Items B and D Pinout info...

Страница 13: ...tion 2 Operation Figure 2b Rear Panel Features INTERNAL POWER UNDERWRITERS LABS LABEL ON SIDE SEE POWER SUPPLY 50 60 Hz 100 240 VAC NUMBER SERIAL UNBALANCED IN BALANCED IN LOOP THRU CHANNEL A LEFT AMP2A AMP2A AMPPM AMP2A AMVU UNBALANCED IN BALANCED IN LOOP THRU CHANNEL B RIGHT 253408 01 A B D C B C D ...

Страница 14: ... 2002 Wohler Technologies Inc ALL rights reserved 14 AMP2 AM Series User Manual P N 821540 Rev A Section 2 Operation ...

Страница 15: ... rights reserved 15 AMP2 AM Series User Manual P N 821540 Rev A Technical Information General Technical Observations PPM Meter Specifications and Level Threshold Settings VU Meter Specifications and Level Threshold Adjustment Section 3 ...

Страница 16: ...ut stage and before the volume control section The signal pick off for the headphones is after the volume and balance controls Speaker muting is controlled by circuitry that senses connection of headphones to the jack The power amps are attached to an aluminum heatsink plate which is also connected to the circuit common for these devices The heatsink plate forms an operational module separate from...

Страница 17: ...d Level Meter Dynamics Mechanical StandardVU 0 to 8 dBv factory set to 4 dBv trimpotadjustable internal VU fullANSI Level Meter Type Level Meter Scale Level Meter Threshold Level Meter Dynamics Mechanical Specify BBC 1 to 7 or EBU type 1 and 2 specified when ordered 6 0 4 or 8 dBv DIP switch selectable top cover PPM AMP2 AMVU Level Threshold AdjustmentMVU Level Gain Calibration Level Gain Calibrat...

Страница 18: ...2 AMPPM Interconnect Block Diagram Connector Legend XLR M 3 Pin Male RCA Phono Female Rev A 08 15 02 XLR F 3 Pin Female Right Side Speaker Middle Speaker Woofer R L Left Side Speaker Phase Indication Analog Input Impedances XLR 200K Ω Balanced RCA 47K Ω Unbalanced BALANCED IN LOOP THRU Rear Panel Headphones Mechanical Level Meter Driver PCB UNBALANCED IN BALANCED IN LOOP THRU CHANNEL B RIGHT UNBAL...

Страница 19: ...c ALL rights reserved 27 AMP2 AM Series User Manual P N 821540 Rev A Wohler Technologies Inc 31055 Huntwood Avenue Hayward CA 94544 Phone 510 870 0810 Fax 510 870 0811 US Toll Free 1 888 596 4537 www wohler com support wohler com ...

Страница 20: ...r Technologies Inc 713 Grandview Drive South San Francisco CA 94080 650 589 5676 Fax 650 589 1355 web www wohler com e mail support wohler com Wohler Technologies Inc 31055 Huntwood Avenue Hayward CA 94544 Phone 510 870 0810 Fax 510 870 0811 US Toll Free 1 888 596 4537 www wohler com support wohler com ...

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