Digital Music Amplifiers.........SERIES DMA COMPACT

Features

Data Sheets | Manuals

Inputs - Input 1 is set as Microphone Input. Impedance is 250 ohm electronically balanced. This Input may be Transformer balanced by using the optional Transformer Model MT250. Input 2 is Phone Paging to interface with a Phone System. Input Impedance is 600 ohm, Transformer Balanced. A level control is available on the Front Panel. Input 3 and 4 can be set at either MIC or AUX Level, (internal Switch/Jumper). Impedance is 250 ohm on MIC and 47 K on AUX. Phantom Power - Provided on all Inputs set as MIC. Stereo Summing - Two separate RCA Jacks are provided for Input 3 and 4 (Left and Right). A Stereo signal connected to either Input is buffered and internally summed to Mono. Input 3 & 4 Attenuators - When the Inputs are set as AUX 1 and AUX 2 the input sensitivity may be varied by a rear panel Variable Attenuator. This feature allows to set the output level of Programs originating from different sources (CD, Satellite Receiver, etc.). MIX BUSS - This Input/Output may be utilized to parallel two amplifiers or as an input for a Microphone Mixer or other audio source. When used as an Input the Amplifier Level and Equalization Controls have no effect. Line Out - 600 ohm, 1.5 Volt Line Output. Remote Volume Control - The INPUT 3/AUX 1 Input Volume may be adjusted from a remote location. Remote Volume Inputs utilize a 10K Pot and are immune to Audio Interference (DC Operation). Addressable VOX System - The VOX System can be individually selected to operate independently on all 4 Inputs by means of jumpers . Addressable Muting System - All Inputs may be set to be Muted when the Vox is activated. Direct Muting/Unmuting System - The MUTE function may be activated by external contacts. MIC 1 Input may be set to normally off and turned-on by shorting the Unmute Terminals. MUTE Adjustable Delay - A rear panel control adjusts the MUTE Time Delay from 3 Sec. to 60 Sec. Particularly useful to control the length of time that an Input mutes another (for example AUX 1 over AUX 2). Music on Hold - Output Channel 1 - Channel 1 provides a 1 Volt, 600 ohm Transformer Balanced Output. Internal Jumper selects the source from either AUX 1 or AUX 2. Level Control is provided. Output Channel 2 - Channel 2 provides a 2 Watt Max., 8 ohm output for Zone 2 Speaker Output. Internal Jumper selects the source from either AUX 1 or AUX 2. Level Control is provided. Internal Chime Card - An optional Chime Card Model AC1B/DMS is available. When the Direct Muting is activated the Chime is turned-on. EQ LINK - EQ Link (Preamp. Out) (Power Amp In) jacks are provided for External Equalizer. Activated by the EQ Link Switch. Tone By-Pass Switch - The Tone by-pass switch defeats the setting of the Treble and Bass Controls. Should be used when an External Equalizer is utilized. 24 VDC Supply Output - A 24 Volt DC, 250 mA regulated Power Supply with dynamic filter is provided for external accessories ~top~

Specifications

Distortion: 0.01% THD at 1 kHz rated power Frequency Response: 20 hz - 30 Khz ± 2 dB Inputs: Input 1 MIC Electronically Balanced, Transformer Balanced with MT250 (optional) Input 2 Telephone Transformer Balanced Input 3 MIC Electronically Balanced - AUX 1 (Stereo Summing) Input 4 MIC Electronically Balanced - AUX 2 (Stereo Summing) Sensitivity & Z: Input 1 Mic 1 = 1.5 Mv - 250 ohm Input 2 Tel=100 Mv - 600 ohm - Transformer Balanced Input 3 Mic 3 = 1.5 Mv - 250 ohm - AUX 1 = 100 Mv - 47K ohm Input 4 Mic 4 = 1.5 Mv - 250 ohm - AUX 2 = 100 Mv - 47K ohm Input Attenuator: AUX 1 and AUX 2 Phantom Power: All Microphone Inputs by internal jumper (18 V) Hum & Noise: Mic-70 db, Aux-75 db 600 ohm Transformer balanced Telephone Paging Input: EQ LINK: Preamp. out, Power Amp in with EQ Link Switch Line Outputs: Line Out 600 ohm - 1.5 V loaded Inputs/Outputs: MIX BUSS Music on Hold Output: 600 ohm-1 Volt Transformer Balanced Zone 2 Output: 2 Watt Max. - 8 ohm with Control Main Output Impedance: 8 ohm, 25 Volt and 70 Volt line Controls: Front Panel: Input 1 Volume, Input 2 Volume, Input 3 Volume, Input 4 Volume, Bass and Treble Rear Panel: AUX 1 Attenuator - AUX 2 Attenuator, VOX Sensitivity - MOH/ZONE 1 Level Control - ZONE 2 Level Control - VOX Sensitivity - MUTE Delay Tone Controls: Bass and Treble ± 10 dB at 100 hZ and 10 KHz Tone By-Pass: On - Off Switch Rear Panel Remote Volume Control: INPUT 3 - AUX 1 Input Volume MOH Source Selection: AUX 1 and AUX 2 Zone 2 Source Selection: AUX 1 and AUX 2 VOX BUSS: Available on all Inputs by internal Jumper MUTE BUSS: Available on all Inputs by internal Jumper MUTE DELAY: Adjustable from 3 Sec to 60 Sec (rear panel control) Direct Muting: External Contact Closure Unmuting: MUTES/UNMUTES MIC 1 only Power Supply Output: 24 V DC - 250 mA Regulated Rack Mounting: Optional 19” Rack Kit Internal Cooling Fan: Thermally Controlled - Models DMA2060, DMA2120 Protection: Power Surge, Overload and Thermal Protection Power Requirement: 117 Volt, 50-60 hZ Power Consumption: DMA2015 = AC = 570 VA - DMA2030 = 600 VA DMA2060 = 670VA - DMA2120 = 850VA Max. AC Accessory Outlet: 117 v - 500 W Max. Unswitched Terminations: Screw Terminals, RCA Jacks Housing Finish: Black Output Power Indicator: Multi-color LED Signal and Clip Dimensions: 10.75”W., 11” D., 4” H. with feet (274X280X102 mm) 3.5” H (89 mm). less feet Net Weight: DMA2015 = 9.8 Lbs (4.5 Kg)- DMA2030 = 11.75 Lbs (5.4 Kg) DMA2060 = 12.5 Lbs (5.7 Kg)- DMA2120 = 14.25 Lbs (6.5 Kg) ~top~

Specifications are subject to change without notice

Copyright 2005
mc midwest communications

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