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DA 26S Distribution Processor

DA 26S Front

DA 26S Rear

DA 26S Distribution Processor

Do you have a paging and background music application that would benefit from a low cost, one-box solution? The DA 26S provides all of the tools needed to serve up to six zones. For even greater flexibility in source selection and zone distribution, combine the DA 26S with a Rane CP 52S or CP 64S music and paging preamplifier. Many existing solutions require installers to employ separate paging preamplifier, dynamics processor, crossover, distribution amplifier and remote-level-control devices. These systems are expensive and require a lot of wiring, yet fail to meet all of the requirements. The DA 26S provides all of the required features in one compact package.

The DA 26S routes a mono program source and priority/page source to as many as six zones. The mono program source is processed by an Automatic Gain Control (AGC) circuit featuring adjustable target level, ratio and attack/decay.

The priority/page input features automatic signal detection and remote zone assignment. A means of automatically attenuating program music over a range of 0 dB to –80 dB during a page allows mic/line mixing, talk-over or priority-replaces-program operation.

Each of the six outputs distributes full-range, high-pass or low-pass program music. Small bookshelf or hanging speakers frequently require bass enhancement. Bass enhancement is achieved by adding bass to the full range response or by employing a true bi-amp system. The DA 26S provides a 24 dB per octave Linkwitz-Riley crossover that supports both bass enhancement schemes.

VR 1 RemoteWired remote level control ports allow independent control of music amplitude in each zone. Loudness compensation is automatic when a remote is used. Remote level controls do not influence the priority/page level. It is possible to control multiple remote level ports with a single remote device. This allows one remote device to control the level in multiple zones or both high-pass and low-pass outputs in a single zone. Rane makes the VR 1 Remote Control, and instructions are provided for wiring your own pot.

DA 26S Application Example

DA 26S Application

Paging mic from reception has priority over the music source. Remotes for source selection and volume are within four zones. One zone has sub and satellite speakers, another zone is fed to the telephone music-on-hold. Any zone may be wired to have priority remote control over other zones.

PDF This application is included in the DA 26S Data Sheet

VR 1VR 1 Remote

The optional VR 1 wired Remote Control allows Level control from within the Zone area. Range is 0 to -80 dB.

To control more than one Remote Port with a single Remote control, it is only necessary to connect the Vc pin of each additional port.

Do not short the Vr pin to ground. This pin is current limited; however, excess heat is generated in the 5 V supply if a short occurs. Never subject the Vr pin to voltages above 5 V.

The VR 1 remote assembly mounts in a standard U.S. electrical box with a minimum depth of 2.25" (5.5 cm). Install any Decora plate of your choice. For a secured installation, you may wish to leave the knobs off and use a blank Decora plate to cover the remote after adjustment.

DA 26S Specifications

Parameter Specification Limit Conditions/Comments
Priority Input: Active Balanced   3-pin Euroblock connector
.....Input Impedance (mic/line) 511 / 14.5k Ω 1% Each leg to ground, 1 kHz
.....Max Input (mic/line) -10 / +20 dBu min Source res. 150 Ω, 1 kHz
.....Gain Range (mic/line) 30 to 60 / 0 to 30 dB ±2 Source res. 150 Ω, 1 kHz
.....Freq. Response 10 Hz to 20 kHz dB +0,-.5 minimum gain
.....Equiv. Input Noise (mic) -116 dBu typ 150 Ω, gain 60 dB, BW 22 kHz
.....Noise (line) -80 dBu typ 150 Ω, gain 0 dB, BW 22 kHz
.....CMRR 40 dB min 150 Ω, gain 60 dB, BW 22 kHz
.....Overload LED 4 dB typ Before clipping, 1 kHz
.....Detect Threshold on to +4 dBu typ 1 kHz
.....Ducker Depth 0 to -80 dB typ 1 kHz
.....Priority Assign Inputs 5 VDC TTL active low or simple switch closure to ground Euroblock 8-pin passive internal pullup
Program Line Input: Active Balanced   3-pin Euroblock connector
.....Input Impedance 10k Ω 1% Each leg to ground, 1 kHz
.....Gain 0 dB ±0.5 1 kHz
.....CMRR 40 dB min Source res. 150 Ω, 1 kHz
Automatic Gain Control: AGC   Log average detector, soft knee
.....Target Range -12 to +12 dBu ±1 Level the AGC circuit is seeking
.....Threshold 26 dBu below target ±1 The level below target when AGC starts
....Gain Reduction Time Constant 230/11 ms 20% Slow/fast
....Gain Increase Time Constant 1100 ms 20% Fixed
.....AGC Release 11 sec. 20% Return to unity when >26 dB below target
.....Ratio 0:1 to infinity:1   soft knee action
.....Gain Meter -12, -6, -3, 0, +3, +6, +12 dB 1 Indicates AGC level control
Crossover: Frequency 80, 110, 150, 200 Hz 8% 24 dB/octave Linkwitz-Riley
Outputs: Active balanced   3-pin Euroblock
.....Output Impedance 100 Ω 1% Each leg to ground
.....Gain +12 to -12 dB ±2 1 kHz
.....Freq. Response 20 Hz to 20 kHz dB +0,-.5 Unity gain, 2k Ω load
.....Noise -88 dB typ Unity, 2k Ω load, BW 22 kHz, re +4 dBu
.....THD+N 0.05 % typ 0 dBu, 20 Hz to 20 kHz, unity gain
.....Maximum Output 22 dBu min 1 kHz, 10 kΩ load
Remote Level Ports: Wired DC control   Euroblock 3-pin connector
.....Voltage Range 0 to 5 VDC 5% Source impedance 100 Ω
.....Gain Control Law 50 mV per dB 5%  
.....Gain Range 0 to -80 dB min 1 kHz
Unit: Agency Listing UL/cUL/CE    
Line Voltage 100-240 VAC, 50/60 Hz   7 watts; C5 cord with C6 inlet
Unit: Construction All Steel    
..........Size (1U) 1.75"H x 19"W x 5.3"D   (4.4 cm x 48.3 cm x 13.3 cm)
..........Weight 4 lb   (2 kg)
Shipping: Size 4.25" x 20.3" x 13.75"   (11 cm x 52 cm x 35 cm)
..........Weight 8 lb   (4 kg)
       
Note: 0 dBu=0.775 Vrms

DA 26S Support

What type of wire can I use to connect the remote?

For runs up to 200 feet any five conductor wire, 22 gauge or larger, will suffice. Use shielded wire for distances greater than 200 feet.

I can't get the page microphone to work. What am I doing wrong?

First check all the wire connections at both ends of the mic cable. Next be sure to set the PRIORITY INPUT MIC/LINE switch correctly on the rear panel. Once you have the setting correct, turn up --- clockwise --- the PRIORITY GAIN control and see if you can light the OL indicator when you yell into the mic. Now adjust the DETECT threshold to get ACTIVE to illuminate. If all this checks out, it's time to follow the step-by-step in the manual.

If the above options don't answer your question, or it's urgent...
Phone 425-355-6000, 8 AM to 5 PM PST, Monday through Friday.
If it's less urgent, you can email the factory.
For local service within the USA, find a service center.

Commercial Processors Comparison

 
DA 26S
Levels of Priority
3
4
1
3
Paging Mic Inputs
1
2
1
2
Program Line Inputs
4
4
1
6
Number of Zones
1 Stereo
1 Stereo + 1 Mono
6
6
Page Limiter
Yes
No
AGC
Yes
Page High / Low Filter
Yes
No
Yes
Yes
Expand Outputs
1
2
6
1
Expand Levels
Yes
No
Yes
Yes

For more inputs and outputs, see the RPM programmable series of Drag Net products. Their paging functions include a Priority Auto Mixer/Ducker, Ambient Noise Compensator, Automatic Gain Control, Equalization, Feedback Suppression and additional processing.

Model

Analog Inputs

Analog Outputs

AES3 Input

AES3 Output

Total Inputs

Total Outputs

RPM 26z

2 line

6

yes

no

4

6

RPM 44

4

4

yes

yes

6

6

RPM 88

8

8

yes

yes

10

10

Other Distribution Amplifiers