| DMP 128 |
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| Audio system |
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| Gain | Unbalanced output: -6 dB; balanced output: 0 dB |
| Frequency response | 20 Hz to 20 kHz, ±0.2 dB |
| THD + Noise | <0.02%, 20 Hz to 20 kHz, at maximum level |
| S/N | >105 dB, 20 Hz to 20 kHz, at maximum balanced output, unweighted |
| Crosstalk | <-90 dB @ 20 Hz to 20 kHz, fully loaded |
| Volume control | -100 dB to 0 dB (control 0 to 100 in 1 dB steps) |
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| Audio input |
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| Number/signal type | 8 mono, mic/line, balanced/unbalanced (with phantom power) |
| Connector | (8) 3.5 mm captive screw connectors, 3 pole |
| Number/signal type | 4 mono, mic/line, balanced/unbalanced (without phantom power) |
| Connector | (2) 3.5 mm captive screw connectors, 6 pole |
| Impedance | >10k ohms unbalanced/balanced |
| Nominal level | -60 dBV, +4 dBu, -10 dBV adjustable via input gain |
| Maximum level | +21 dBu at rated THD+N when mic gain is set to 0 dB |
| Equivalent input noise | <-120 dBV (1 µVrms) at 40 dB input gain |
| CMRR | >60 dB typical |
| Input gain adjustment | -18 dB to +80 dB in 0.1 dB steps, adjustable per input |
| DC phantom power | +48 VDC, +10% (inputs 1-8) can be switched on or off |
| NOTE | 0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu |
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| Audio output |
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| Number/signal type | 8 mono, (or 4 stereo) balanced/unbalanced |
| Connectors | (4) 3.5 mm captive screw connectors, 6 pole |
| Impedance | 50 ohms unbalanced, 100 ohms balanced |
| Gain error | ±0.1 dB channel to channel |
| Maximum level (Hi-Z) | >+21 dBu balanced, +15 dBu unbalanced |
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| Audio processing |
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| A/D, D/A conversion | 24 bit, 48 kHz sampling |
| AEC tail length | >200 msec |
| AEC convergence | up to 60 dB/sec |
| Noise cancellation | up to 20dB, software selectable |
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| EXP port |
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| Transmission type | Proprietary |
| Connectors | (1) RJ-45 connector |
| Inputs | 16 channels Rx |
| Outputs | 16 channels Tx |
| Audio format | 24 bit, 48 kHz sampling, uncompressed |
| EXP cable | Shielded CAT6 up to 10 meters (1 foot cable included) |
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| Telephone ports (DMP 128 C P and DMP 128 C P AT only) |
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| Frequency response | 300 to 3200 Hz |
| Input gain | -18 to +20 dB in 0.1 dB steps, software adjustable |
| Off hook loop current | 10 mA (minimum) |
| Output gain | -100 to 0 dB in 0.1 dB steps, software adjustable |
| Dynamic range | >60 dB, "A" weighted |
| Country codes | USA, Canada, Europe, Australia, Japan, Singapore, United Arab Emirates |
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| AT ports (DMP 128 AT models only) — audio transport |
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| Transmission type | Dante/AES-67, software selectable |
| Connectors | (4) RJ-45 connectors, 4-port 1 Gbps switch to Dante Interface |
| Inputs | 56 channels Rx |
| Outputs | 24 channels Tx |
| Audio format | 24 bit, 48 kHz sampling, uncompressed |
| Latency | Deterministic, based on user selections: 0.25 ms, 0.5 ms, 1.0 ms (default),2.0 ms, 5.0 ms |
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| Control/remote |
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| Serial host control port | 1 bidirectional RS-232, 3.5 mm captive screw connector, 3 pole |
| Baud rate and protocol | 38400 baud, 8 data bits, 1 stop bit, no parity |
| Serial control pin configuration | 1 = Tx, 2 = Rx, 3 = GND |
| USB control ports | 1 front panel female mini USB B |
| USB standards | USB 2.0, low speed |
| Digital I/O | (4) 3.5 mm captive screw connectors, 6 pole
Each port shares a common ground
Input voltage range = 0V to +12V
Output voltage = 0V (low),5V (high)
Software programmable
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| Ethernet host port | 1 RJ-45 female |
| Ethernet data rate | 10/100Base-T, half/full duplex with autodetect |
| Ethernet default settings | Link speed and duplex level = autodetected
IP address = 192.168.254.254
Subnet mask = 255.255.0.0
Default gateway = 0.0.0.0
DHCP = off |
| Web server | Up to 200 simultaneous sessions
6.5 MB nonvolatile user memory |
| Program control | Extron control/configuration program for Windows®
Extron Simple Instruction Set (SIS™)
Microsoft® Internet Explorer®, Telnet |
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| General |
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| Power | Internal
Input: 100-240 VAC, 50-60 Hz |
| Power input requirements | 28 watts |
| Ambient temperature/humidity | Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing
Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing |
| Cooling | DMP 128: Convection
All other models: Fan, right to left |
| Mounting | |
| Rack mount | Yes, with included brackets |
| Furniture mount | Yes, with optional under-desk mounting kit |
| Enclosure type | Metal |
| Enclosure dimensions | 1.7" H x 17.4" W x 9.5" D (1U high, full rack wide)
(4.3 cm H x 44.2 cm W x 24.1 cm D)
(Depth excludes connectors.) |
| Product weight | 2.8 lbs (1.3 kg) |
| Vibration | ISTA 1A in carton (International Safe Transit Association) |
| Regulatory compliance | |
| Safety | CE, c-UL, UL |
| EMI/EMC | CE, C-tick, FCC Class A, ICES, VCCI |
| Environmental | Complies with the appropriate requirements of RoHS, WEEE |
| Product warranty | 3 years parts and labor |
| Everlast power supply warranty | 7 years parts and labor |
