Dynacord DMM 4650 owner manual Specifications DMM

Specifications DMM 4650

Operating Voltage	21.6 - 31.2VDC
Power consumption	max. 18 watts (without retrofitting kits 90204)
Input voltage	Input		0.775V/0dBu
	*Line Input		0.775V/0dBu
	*Rec Input		0.775V/0dBu
	*Mic Input		1.4mV/ -54dBu at 600 ohms
Max. Input voltage	Input		3.8V/+14dBu
	*Line INPUT		30V/+32dBu
	*Rec INPUT		30V/+32dBu
	*Mic INPUT		50mV/ -24dBu at 600 ohms
* Using several inputs simultaneously results in a change of the stated voltages.
Input impedance	Input(bal.)		20kOhm
	Input (unbal.)		10kOhm
	Line Input		20kOhm
	REC Input		20kOhm
	Mic INPUT		1,4kOhm
Output voltage	Output		0.775V/0dBu
	Pre-Output		3.2V/+12dBu
	Phones		3.2V/+12dBu
Max. Output voltage	Output		3.8V/+14dBu
	Pre-Output		9V/+21dBu
	Phones		9V/+21dBu
Output impedance	Output (bal.)		136 Ohm
	Output (unbal.)		68 Ohm
	Pre-Output		220 Ohm
	Phones		220 Ohm
Frequency response	Input > Output		20Hz-20kHz -3/0dB
	Mic Input		20Hz-16kHz -18/3dB
	Others		20Hz-16kHz +0/-3dB
Signal-to-noise ratio	Input > Output		> 108dB (A-weighted)
	Message		> 90dB (A-weighted)
THD	Input > Output		< 0.03% (at 1kHz)
	Message		< 0.05% (at 1kHz)
Data format	AD/DA converter		16 bit linear
	DSP internal		24 bit
Sampling rate	35kHz
Control inputs	Ein	< ±5V = Low
	Ein	> ±10V = High
Control outputs	floating relay contacts		1A at 24VDC
Dimensions	483 X 43.6 X 225 (W x H x D) 19in, 1HU
Weight	4kg
Retrofitting kits
Port C or D	NRS 90204
	4 control inputs and outputs
Memory extension	NRS 90205
	message memory extension
Output transformer	NRS 90210
Input transformer	NRS 90211

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