Precision Audio and AV Interface Products

Radio Design Labs

RU-ADL2 Professional Audio Delay - 0 to 135 mS

  • Studio Quality, Low Noise DSP Audio Delay
  • Separate Time Delays for Two Audio Outputs
  • Adjustable Delay from 0 to 135 mS
  • Large Numeric Display of Time Delay
  • Fully Remote Controllable Audio Delay
  • Provision to Disable Front Panel Adjustment
  • XLR and Terminal Block Audio Connections
  • Exclusive RDL Sure-Lok™ Supervision
  • Overview
  • Specifications
  • Related Products
  • Accessories
  • Downloads
  • How to Buy
  • Product Series
  • Dimensions

The RU-ADL2 is a DSP based dual-output delay for an analog audio source. It provides exceptional audio performance for the most critical applications in a professional audio environment. The RU-ADL2 accepts a single monaural audio input and provides two separate monaural outputs. The time delay on each output is individually adjustable from 0 to 135 mS. A large, bright 3-digit LED numeric display on the front panel shows the time delay set for each of the two outputs. A locking pushbutton switch selects the output to be displayed and adjusted. Time adjustment is made in 1 mS increments using durable keyboard style pushbuttons on the front panel. If a button is held, the time will first ramp slowly, then more rapidly permitting easy course and fine adjustment of the time delay. A locking pushbutton permits the user to completely bypass and return to the DSP time delay section without losing the stored delay values. Time delay values are stored in a non-volatile memory so the RU-ADL2 returns to the correct settings following any interruption of power.

Rear panel terminals provide full remote control of the RU-ADL2 including a LOCKOUT terminal to disable the operation of the front-panel time adjustment buttons. All audio connections are made through XLR connectors or on full sized barrier block terminals provided on the rear panel. The INPUT GAIN is adjustable and is equipped with a front-panel dual-LED LEVEL meter that follows standard VU ballistics. A green LED illuminates at 15 dB below +4 dBu, becoming progressively brighter with increasing audio level. The adjacent red LED illuminates when the audio level exceeds +4 dBu. The output levels are fixed at nominal unity gain. The RU-ADL2 operates from ground-referenced 24 VDC power, connected either to barrier block terminals or through a power jack on the rear panel. The RU-ADL2 may be used as a standalone delay, or its input may be connected in parallel with multiple RU-ADL2 modules to provide additional delayed outputs.

Applications

Input:
+4 dBu nominal, 40 kΩ balanced
Maximum Line Input Level:
+26 dBu
Gain Adjustment:
Off to 16 dB gain
Frequency Response:
20 Hz to 20 kHz (± 0.5 dB)
THD+N:
< 0.05%
Residual Noise:
< -80 dB (below +4 dBu output)
Outputs (2):
+4 dBu nominal, 150 Ω balanced
Headroom:
>18 dB (above +4 dBu output)
Indicators (6):
Dual-LED input VU; PWR; LOCKOUT.
Display:
3 digit display, Height: 0.4 in. (1 cm); 0 to 135 mS in 1 mS increments
Ambient Operating Environment:
0° C to 50° C
Power Requirement:
24 Vdc @ 275 mA, Ground-referenced
Overall Dimensions:
Height: 1.7 in. 4.3 cm, Length: 5.8 in. 15.0 cm, Depth: 5.3 in. 13.4 cm
Package Type:
Cardboard Box
Package Dimensions:
4.375 x 7 x 2.25 in.
Shipping Weight:
1.58 lbs.
WEEE weight:
1.295 lbs.
Tariff code:
8543.70.9860

Documents:
Format
PDF
CAD Files:
Format
High Res Images:
Format
Press Release:
Format
Declaration of Conformity:
Format
PDF

Direct Dealer Program


Becoming an RDL direct dealer is quick and easy. To become a direct dealer, your company must meet the following requirements:

  • Must be an A/V contractor, sound contractor or system integrator

  • Must possess a current resale certificate for your state

Click here to submit a new direct dealer account inquiry.


Buy Online

RACK-UP SERIES

RACK-UPs are the original 1/3 rack width 1RU rack-mountable modules for the A/V, recording and broadcast industries. Module functions include mixing, switching, pre-amplification, power amplification, distribution, gain control, equalization and more. Some RACK-UP modules are constructed in solid encapsulated durable industrial black plastic enclosures; MAX RACK-UPs are assembled using heavy duty extruded aluminum and steel panels. The rear panels feature clear bold white lettering for the terminal blocks and connectors. Reverse-printed front-panel polycarbonate laminates provide an attractive, durable finished appearance for rack-mounted or free-standing use.

Since RDL first originated 1/3 rack width modules, RACK-UPs have led the industry in economical, high-performance and cost-effective long life solutions in system designs. Multiple RACK-UP modules may be interconnected, or may be connected with other RDL modules to form all or part of an A/V system. Certain RACK-UP modules are often used free standing; all RACK-UPs may be rack mounted. A complete range of mounting options is available for systems comprised of multiple modules.

RACK-UP modules provide input, output and control connections through terminal blocks and connector (or both) according to common usage in professional installations. Front panels are equipped with connectors, user controls and LED metering, as appropriate.

Functions and features provided by RACK-UPs, since their introduction, are still available today. This continuity in product offering and support makes RACK-UP modules a preferred long-term resource for system design solutions. RACK-UP SERIES modules are designed and manufactured in the U.S.A.

RU-ADL2 RU-ADL2