DMA2240 Two-Channel Digital Mixer Amplifier - 翻译中...

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● Mechanical knobs and push-button design, with a rocker-type power switch.
● Two-channel amplifier; each channel can be individually configured via DIP switches to support 100V constant-voltage output, 70V constant-voltage output, 8Ω fixed-resistance output, or 4Ω fixed-resistance output. Rated power can be delivered in any mode.
● Six balanced input channels, each with independent volume control; each channel has a separate DIP switch for 48V phantom power.
● One set of RCA AUX2 inputs, split into CH1 and CH2, with independent volume control.
● One 3.5mm stereo input, with independent volume control for CH1 and CH2.
● Two RCA AMP IN1-2 inputs for amplifier input, by default connected to PRE OUT1-2.
● Two RCA PRE OUT1-2 outputs for preamplifier output, controlled by CH1 and CH2 volume; outputs 1V only in 100V constant-voltage mode.
● 3.5mm stereo input and MIC1 can be configured as priority inputs; in any mode, these two inputs are mixed together.
● Two RCA AUX2 OUT1-2 outputs for audio sources, not controlled by CH1/CH2 volume or maximum output level.
● RJ45 interface supports DMA30W remote touch control panels, up to six units; allows control of CH1/CH2 volume, zone on/off, and EFFECT on/off.
● Supports EFFECT (reverb) depth adjustment and reverb time with three preset modes and one custom mode. In custom mode, the ROOM SIZE option has L, M, S, OFF. MIC5-6 can enable or disable EFFECT. OUTSIDE and ROOM zones can independently enable or disable EFFECT.
● MIC1-6 have EQ adjustment, divided into LOW (80Hz ±12dB), MID (2.5kHz ±12dB), and HIGH (10kHz ±12dB).
● Standby function: can be enabled via DIP switch; enters standby after 10 minutes of no signal, with the SLEEP indicator flashing; resumes normal operation upon signal detection.
● Supports connection of one DMA30N Remote Bus Network Decoding Terminal via RJ45 for audio and data bus power, enabling network decoding, offline scheduled playback, EMC dry-contact output, and network AUX OUT functionality.

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翻译中...

Model		DMA2240	DMA2500
Line Input	AUX1 Input Sensitivity	250±25mV
	AUX2 Input Sensitivity	250±25mV
	AMP IN (CH1-2)	1±0.1mV
	COM1-2	±3V±0.2V
	Frequency Range	80–16kHz (±3dB)
Microphone Input	MIC1-6 Max. Input Sensitivity	5±1mV (potentiometer fully clockwise)
	MIC1-6 Min. Input Sensitivity	250±25mV (potentiometer fully clockwise)
	Frequency Response	100–10kHz (±3dB)
	Phantom Power	48±5V
Line Output (CH1-2)	BUS OUT Line Output	1±0.1mV
	REC OUT Line Output	1±0.1mV
	PRE OUT Line Output	1±0.1mV (100V constant-voltage mode)
Signal-to-Noise Ratio		≥76dB (all volumes at max)
Noise		≤8.5mV (all volumes at max)
Total Harmonic Distortion		≤1%
Gross Weight		8.8kg
Net Weight		6.3kg
Package Dimensions (L×W×H)		585×535×155mm
Product Dimensions (L×W×H)		483×380×88mm