| Model: BMS-1032-BASE Specifications |
| Description |
BMS-1032 Background Music System |
| Main Unit |
| Music Audio Inputs |
| Input Type |
Stereo Unbalanced |
| Input Impedance |
10k ohm |
| Nominal Input Level |
0dBV/0.775 VRMS |
| Max Input Level Before Clipping |
+12dBV/2.9 VRMS (with trim control set to unity) |
| Input Trim Control Range |
-20 to 6dB |
| Crosstalk |
-95dB |
| Max Number of inputs |
1-10 user selectable via rear panel rotary selector plus 1 local input at wall plate. |
| D/A Converter Performance |
| Resolution |
18 bits |
| Sample rate |
44.1k samples/second (CD quality) |
| Dynamic range |
94dB |
| Conversion Method |
128x oversampling delta-sigma modulator with digital anti-alias filtering |
| Audio Transmission Method |
AES-3 digital encoding |
| Page Audio Inputs |
| Input Type |
Mono Balanced |
| Input Impedance |
20 k ohm |
| Nominal Input Level |
0dBV/0.775 VRMS |
| Max Input Level Before Clipping |
+12dBV/2.9 VRMS (with trim control set to unity) |
| Input Trim Control Range |
-20 to 14dB |
| Crosstalk |
-85dB |
| Page Detection Threshold |
-25 to -5dBV (this is the level required to trigger a page with trim set to unity) |
| Page Detection Delay |
50 milliseconds max |
| Page Hold Time |
2 seconds (internally adjustable from 0.1 to 8 seconds) |
| Number of Page Inputs |
2, may be enabled in any combination by programming each wall plate. |
| Wall Plates Specifications |
| Volume control range |
-40 to 0 dB |
| Local Audio Input |
| Local Input |
Stereo Unbalanced |
| Local Input Gain |
10db fixed |
| Nominal Local Input Level |
-10dBV/0.25VRMS |
| Max Local Input Level |
+dBV/1.0VRMS |
| Audio Output |
| Line Output |
Stereo Unbalanced |
| Gain |
Unity with respect to rack audio inputs, when rack trim control is set to unity and wall plate volume is set to max. |
| Distortion |
0.065% @ 1VRMS, 1kHz, 1k load wall plate volume max. (typical) |
| Speaker Output |
| Power |
0.75 watts/channel RMS 2.5 watts/channel music power. |
| Speaker Impedance |
8 ohm recommended |
| Distortion |
0.3% @ 0.75 watts into 8 ohms 20Hz-20kHz. |
| Mono Jumper |
When installed, sums left & right rack audio, and feeds it to both left & right outputs. Local inputs remain stereo-bridge them separately for mono operation. |
| Headphone Output |
1/8” jack provided for connection to 16-32 ohm headphones. Headphones are automatically sensed, and disable line and speaker outputs when plugged in. Page audio unconditionally overrides this feature reenabling all outputs for the duration of the page. |
| Main Unit (Mechanical Specifications) |
| Size |
19” wide x 3.5 “ high (2RU) x 12” deep |
| Mounting |
Standard rack mounting |
| Wall Plates (Mechanical Specifications) |
| Size |
4.5” wide x 4.5” high x 2.5” deep |
| Mounting |
fits standard 2 gang electrical wall box with 4 screws |
| Switches |
Membrane |
| Connector |
RJ45 |
| Cable |
4 pair 24 awg solid Cat-5 shielded cable, Belden 1584A or equivalent |
| Power Supply (supplied with system) |
| Size/Mounting |
Wall mount |
| Input Power |
Auto ranging 100-20VAC/200-240VAC at 3.2 amps |
| Interconnect |
8 foot cable supplied, 5 conductor stranded |