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Program Delay Manager $2,890.00
25-Seven  25S-PDM
25-Seven Warranty  |  25-Seven List Prices

Program Delay Manager
Click to enlarge

Product Details

Leave it to 25-Seven Systems to re-invent the profanity delay. Program Delay Manager (PDM) brings the possibilities of the Internet age to “stand-alone box” technology that hasn’t advanced much since the 1980’s. Ease of use, transparent audio quality, and Program Director friendly features converge in PDM to take an old process to a new level.

PDM is the only program delay to provide IP Audio and control over Axia Livewire audio networks. Whether you already have an IP audio system or you want to keep your plant IP-capable, PDM has you covered with future-proof Ethernet connectivity, as well as standard analog and digital inputs and outputs.

Product Specifications

Audio:S/N ≥ 84 dBA with 10 dB headroom (≥94 dB dynamic range); THD @1 kHz < .01%; IMD (IHF) < .01%; Frequency response ± 0.5 dB, 20 Hz – 20 kHz, measured analog input to analog output.

Power: 100-240 VAC, 50/60 Hz; typical consumption 32 VA.

Power Input PDM comes with a standard IEC C14 power connector.


PDM connects to a standard 10/100Base-T network connection. This port is used for Axia Livewire™, synchronization to a network time server, and secure remote control via a web browser. If connected to the Internet, it should be behind a hardware firewall.

Analog Inputs and Outputs

Stereo inputs are electronically balanced XLR females, pin 2 hot, with a load of 20kΩ: this makes it compatible with all modern electronically-balanced outputs. If fed from a transformer-balanced output, we recommend bridging a 680Ω resistor between pins 2 and 3. Outputs are electronically balanced XLR males, pin 2 hot, designed to feed a load of 600Ω or greater. Input and output sensitivity default levels can be set from the front panel, and can range between +20dBu and -10dBu.

Digital Inputs and Outputs

When set to AES/EBU via the configuration menu, this input conforms to IEC 958 Professional (5v p-p, 110Ω balanced) on XLR connectors. When set to s/pdif, the voltage and impedance switches to IEC 958 Consumer (.5v p-p, 75Ω unbalanced): connect signal to pin 2 and shield to pins 1 and 3. Digital output (selectable AES or s/pdif) is always active, regardless of whether you are using analog or digital inputs. PDM will lock to any valid 32 kHz, 44.1 kHz, or 48 kHz signal at the digital input connector, even if you have selected analog for the input. In that case, the digital input controls PDM's internal sample rate. If PDM is not connected to a digital input, it uses its own high-reliability 44.1 kHz sample clock

Axia Livewire Version Inputs and Ouputs

On the Livewire version of PDM, audio connections are exclusively via the network. PDM-Axia also supports Livewire-based GPIO.


Eight parallel control inputs and eight parallel control outputs appear on a DB-25 connector. Input and output functions are assigned through a configuration menu on the front panel. Inputs and outputs are opto-isolated for easy interface to other equipment. A +5v supply and ground are also brought out to the DB-25 for simple remote controls using pushbuttons and LED status readouts. The +5v supply can carry 200 mA, more than adequate for 8 LEDs and 8 logic inputs. It is protected by an internal, self-resetting thermal circuit breaker.

Product Dimensions

1RU (rack unit); 19" W (with rack ears) x 12" D x 1.75" H (483 x 305 x 44mm)

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