The Rane DA216S Distribution Amplifier is a two-input, sixteen-output splitter/distribution amplifier. The DA216S is capable of providing sixteen discrete balanced outputs from one or two balanced mic-level or line-level inputs. The level of each output is individually adjusted via one of the sixteen screwdriver Output Level controls on the front panel. Each output may be assigned to either or both inputs via front panel accessible slide switches.
The Master A and B Level controls affect the overall level of each input. In other words, they allow all assigned outputs to be turned up or down at once. LEDs indicate an Overload (OL) at either the inputs or at the internal gain stages.
Each input is set to either Mic or Line level via the rear panel Input Pad pushbutton. The separate Input Gain pushbutton switches provide a microphone input with +60 or +40 dB of gain, or a line input with +20 or 0 dB of gain. With Input Gain, Master Levels and Output Levels, any reasonable input signal may be adjusted to a nominal +4 dBu and still have 17 dB of headroom. The Phantom Power switch provides +15 VDC for condenser microphones. Any input assigned to line-level has this phantom voltage turned off automatically. A rear-panel LED indicates when the Phantom Power is engaged.
Each output stage incorporates a high-current balanced output line driver for driving long lines with optimal performance. Euroblock wire range is #14 to #26 stranded or solid. The DA216S incorporates a 100-240 VAC internal universal voltage power supply, operable nearly anywhere in the world.
- Two low-noise balanced Inputs with overload indicators
- Mic/Line Input and Gain switches: 40/60 dB Mic, 0/20 dB Line
- Mic Phantom Power switch
- Master Input Level controls
- A, B, A&B Output Assign switches
- Sixteen balanced (terminal) Outputs, individually assignable
- Individual Output Level controls
- Stable high-current line drivers capable of driving 600Ω loads
- Mic Input Impedance: 1.82k 1% Ω Balanced 909 + 909
- Line Input Impedance: 17.9k 1% Ω Balanced 8.97k + 8.97k
- Mic Gain Control: +40 & +60 + 2 dB 2-position switch
- Mic Pad: 20 + 2 dB 2-position switch
- Line Gain Range: 0 & +20 + 2 dB 2-position switch
- Overall Mic Gain: +56 & +76 + 4 dB All controls maximum
- Overall Line Gain: +16 & +36 + 4 dB All controls maximum
- Max Mic Input Level: -20 typ dBu Gain at 40 dB
- Max Line Input Level: +21 typ dBu Gain at 0 dB
- Overload LED: 3 dB below clip typ Clip defined as 1% THD+N
- Phantom Power: +15 +0.5 VDC Phantom Power switch active
- Output Impedance: 200 1% Ω Balanced 100+100
- Output Drive Level: +24 typ dBu 600 Ω load
- Output Cable Length: 1500 max feet Belden 8451 or equivalent
- Mic Equivalent Input Noise: -128 typ dBu Rs=150, gain=60 dB
- Line Signal-to-Noise Ratio: 100 min dBV Gain=0 dB, re +4 dBu, 22 kHz BW
- THD+Noise (Line Input): 0.005 typ % Gain=0 dB, +4 dBu@1 kHz, 80 kHz BW
- Frequency Response, Line: 15–50 kHz +0, -3 dB 0 dB Gain, 0 dBu Output
- Frequency Response, Mic: 15–50 kHz +0, -3 dB 40 dB Gain, 0 dBu Output
- Frequency Response, Line: 30–50 kHz +0, -3 dB 60 dB Gain, 0 dBu Output
- Crosstalk: 80 typ dB +4 dBu Output, 1 kHz
- Power Supply Requirement: 100 to 240 10% VAC 50/60 Hz, 7W
- (2) Euroblock zone inputs (+, –, ground)
- (16) Euroblock zone outputs (+, –, ground)
- (1) IEC power inlet
- Dimensions: 19.0” x 5.3” x 1.75”
- Weight: 4.0 lbs.
Fully balanced low-noise mic preamplifiers receive the signal to be split or distributed. The Input Pad pushbuttons change the input gain range. Additional Gain pushbuttons increase either Mic or Line level inputs another +20 dB.
The Master Level controls allow level matching and balancing as required. When operating unbalanced, a 6 dB loss of signal must be taken into account when setting the gain structure of the system. When wiring an Output for unbalanced operation do not ground the unused terminal (i.e. usually the “–”). Unbalanced uses only the “+” and ground terminals.
The (“–”) Output may also be used as an unbalanced line driver, albeit inverted. The balanced Input terminals of the next stage must be reversed (+) for (–) to correct for the inversion. This nets a total of 32 Outputs! However, the penalty for 32 outputs is that unbalanced operation will not drive long lines and individual control is lost.
- In this example, each input may be mic or line level.
- Each output may select Input A, Input B, or both via front panel switches.
- Each input and output has a dedicated front panel gain control.