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Commentator/translation console

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This is a Clear-Com AB-120

  • On-Air Announcer Console
  • Talent talk-back circuit automatically mutes mic output to air
  • Silent mic mute button for cough and mic on/off functions
  • Easily adapts for use with any mic or headset
  • Binaural headset output allows talent to hear stereo program, IFB and/or intercom
  • IFB input accepts either unbalanced program or powered IFB
  • Powered by the intercom line, IFB line or external DC source

Technical Specifications

Headset Microphone Input

Input Type: Dynamic, Electret

Input Impedance: 1K Ohms

Max Input Level: -60 dBu to -40 dBu switchable

Headset Output

Load Impedance: >= 4 Ohms

Output Impedance: 47 Ohms

Output Limiter Threshold: -4dBu, + 3dB

Max Output Level Before Distortion: -4 dBu

Partyline Output

Off Noise: <-80 dBu

Output Impedance: >10K Ohms

Maximum Output: -4 dBu

Partyline Input

Maximum Level Before Clipping: +3 dBu

Sidetone Null Capability: >25 dB

Frequency Response

Dynamic Mic – Partyline: 40Hz – 22KHz, + 3 dB

Dynamic Mic – Line Out: 20Hz – 22KHz, + 3 dB

Dynamic Mic – 4-Wire Out: 100Hz – 22KHz, + 3 dB

IFB Input – Headset Out: 100Hz – 22KHz, + 3 dB

Partyline – Headset Out: 150Hz – 22KHz, + 3 dB

Max Distortion

Dynamic Mic – Partyline: <0.1%

Dynamic Mic – Line Out: <0.05%

IFB Input – Headset Out: <0.5%

Partyline – Headset Out: <0.1%


Dynamic Mic – Partyline: <-75 dBu

Dynamic Mic – Line Out: <-85 dBu

IFB Input – Headset Out: <-65 dBu

Partyline – Headset Out: <-65 dBu

Max Gain

Dynamic Mic – Partyline: 41 dB + 3 dB

Dynamic Mic – Hot Mic Out: 40 dB + 3 dB

IFB Input – Headset Out: 40 dB/22 dB (switchable) + 3 dB

Partyline – Headset Out: 34 dB + 3 dB


Intercom/IFB Voltage: 25 – 30 VDC

Current: 100mA idle, 120mA max

DC Adapter: 100 – 240V Voltage: 30V @ 0.5A


32o – 122o F (0o – 50o C)

Features and/or Benefits

Ultimate Tool for Announcers and Commentators

Integrates all the inputs, outputs and controls necessary at the announce position, including intercom talkback, IFB and a silent mic mute button for noise-free cough and mic on/off switching.

“No Compromise” Audio

A high-output stereo headphone amplifier guarantees talent can always hear both program audio cues from the control room, even in the loudest environments.

On-Air Broadcast Quality

A Jensen™ output transformer provides a properly balanced signal and reduces the possibility of ground loops, buzz or hum.

Shipping & Returns

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Shipping Options

We offer free ground shipping on most items for orders $300 and over, $20 for flate rate ground shipping on orders from $150 to $299.99, and $14 flat rate ground shipping on most items for orders under $149.99. *paints, liquids, and large volume items like boom bases (very heavy) or fake snow (not heavy, but very large) may incur a shipping surcharge. Exclusion of items from Free and Flat Rate shipping is at ProAdv's discretion. Offer is currently limited to Lower 48 US States.

We ship to North American addresses. Note that there are restrictions on some products, and some products cannot be shipped to international destinations, or even certain states depending on the item and state or local laws.

Our full policy is in our Terms and Conditions page.
Pandemic Availability Notice

Please Note: Due to unprecedented raw material and component shortages for finished goods throughout our industry, lead times for items that aren't currently in stock are longer than normal and cannot be guaranteed at present. Equipment needed by a firm date must be noted at time of order. While VLS cannot guarantee delivery by those dates, we will work with our suppliers to do everything possible to meet deadlines. We apologize for the inconvenience and appreciate your patience.

Same Day Shipping Cutoff time
(Due to Pandemic-related availability issues, this policy is currently suspended)

Online orders received by noon Eastern time typically ship the same day. If your delivery due date is critical please note your due date in the order messages at checkout, and then contact us.

Why Noon? Well, while we stock quite a few items in our warehouse, many items we have dropshipped by our vendors. They need time to process the order, so to ensure that we can get the order to the vendor and give them enough time to ship it out the same day, we need to get the order to them as early as possible in the day.

Shipping Rating

Please also note that the shipping rates for many items we sell are weight and dimension based, as this is the method that FedEx and UPS use to rate the package's cost to ship.

Returns Policy

We understand things happen and items occasionally need to be returned. To make things as hassle-free as possible, we have dedicated pages about our Returns Policy (what’s eligible to be returned) and our Return Process (how to go about returning eligible items)

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