Viking Speaker (Square) - 100 ohm - 2.25in. in. Diameter 26 Gauge Wires - Q171390

Viking Electronics Q171390 2.25-Inch Square 100-Ohm Replacement Speaker

Overview

The Viking Electronics Q171390 is a 2.25-inch square replacement speaker engineered specifically for Viking intercom, entry, and emergency phone products. If you are servicing an existing Viking installation or building out a new one with a custom enclosure, this is the speaker element the Viking product line is designed around — not a generic audio component pressed into service, but the OEM-matched transducer sized and rated for Viking's driver circuitry. The Q171390 ships with 26-gauge lead wires for direct connection to Viking control boards without any additional termination hardware.

Key Features

• 2.25-inch square form factor: The square profile fits the cutout geometry used in Viking's E-series and K-series enclosures. Round speakers of similar diameter cannot substitute without custom mounting, so matching this shape is the first thing to confirm before ordering a replacement.
• 100-ohm impedance: Viking's entry and emergency phone driver stages are designed around a 100-ohm load. Substituting an 8-ohm or 16-ohm speaker from general audio stock will overdrive the output stage and likely damage the control board — the 100-ohm spec here is not negotiable for these applications.
• 26-gauge lead wires: Pre-terminated leads simplify field replacement. The wire gauge is matched to the current levels a 100-ohm speaker draws from Viking's low-power amplifier circuits, so you do not need to upsize wire or add inline resistors.
• Direct OEM compatibility: Verified compatible with the E-20B, E-20B-EWP, E-35, E-35-EWP, E-1600-30A, E-1600-30A-EWP, K-1205, K-1205-EWP, K-1270, K-1270-EWP, and K-1275 product families. If your Viking unit is on this list, the Q171390 is the confirmed drop-in replacement — no impedance matching, no enclosure modification, no guesswork.
• EWP-variant coverage: The EWP (Extra Weather Protection) variants of the E-20B, E-35, E-1600-30A, K-1205, and K-1270 are included in the compatibility list, which means this speaker is rated for use inside weatherized enclosures. Viking's EWP housings seal the electronics, so the speaker inside must withstand the same ambient temperature swings and humidity levels the enclosure is designed for.
• Low-profile speaker element: At 2.25 inches, this speaker fits within the shallow depth profiles of flush-mount and surface-mount Viking entry station enclosures. Larger replacement speakers physically will not clear the back of the housing in most of these models.

Integration and Compatibility

The Q171390 is compatible with the following Viking Electronics products: E-20B, E-20B-EWP, E-35, E-35-EWP, E-1600-30A, E-1600-30A-EWP, K-1205, K-1205-EWP, K-1270, K-1270-EWP, and K-1275. These span Viking's door entry phone, emergency phone, and intercom product lines. Integrators maintaining large multi-building installations should verify the specific model variant (standard vs. EWP) before ordering, as enclosure depth and internal clearance differ between the two. For broader context on Viking's entry phone and intercom product line, browse the Viking Electronics catalog to cross-reference current production models against legacy units in the field.

This speaker is not a general-purpose audio component — the 100-ohm impedance is specific to Viking's amplifier topology. If you are deploying a commercial intercom system from a different manufacturer, verify impedance requirements before specifying this part. For new installations using Viking entry stations, pairing with the correct Viking door entry phones ensures this speaker element is the right fit from the start. Integrators planning larger deployments may also want to review a PoE switch selection for powering Viking IP-enabled entry devices alongside this hardware.

Frequently Asked Questions

Q: Is the Q171390 compatible with the Viking E-1600-30A-EWP?

A: Yes. The E-1600-30A-EWP is on the verified compatibility list for the Q171390. It is a confirmed fit for both the standard E-1600-30A and its EWP (Extra Weather Protection) variant.

Q: Why does this speaker use 100 ohms instead of the standard 8 or 16 ohms?

A: Viking's entry phone and intercom amplifier circuits are designed to drive a 100-ohm load. Using a lower-impedance speaker would draw significantly more current than the output stage is designed to deliver, which can damage the control board. The 100-ohm spec is an intentional design choice in Viking's architecture, not a typo.

Q: Can I use the Q171390 in a non-Viking intercom or door phone?

A: Technically possible only if the host device's amplifier is designed for a 100-ohm speaker load. Most third-party intercom and door phone products use 8-ohm or 16-ohm speakers. Verify the impedance specification of your target device before installing this speaker.

Q: Does the Q171390 work with the Viking K-1275?

A: Yes, the K-1275 is included in the verified compatibility list for the Q171390.

Q: What wire gauge do the leads use, and does that affect installation?

A: The Q171390 ships with 26-gauge lead wires. These are sized for the low current levels drawn by a 100-ohm speaker from Viking's amplifier stages. No wire upsize or inline resistors are needed for direct board connection in compatible Viking units.

Jerry Tildsen

The spec I always flag first on the Q171390 is the 100-ohm impedance — that single number is what makes this speaker non-interchangeable with commodity audio components. Viking's driver circuits in the E and K series are tuned to that load, and I have seen field techs grab an 8-ohm replacement from a general parts bin and wonder why the control board runs hot or fails inside a year.

Technical Highlights:

• 100-Ohm Impedance: Matched to Viking's amplifier topology across the E-20B, E-35, E-1600-30A, K-1205, K-1270, and K-1275 families — substituting a lower-impedance speaker is a board-damage risk, not a minor mismatch.
• 2.25-Inch Square Profile: The square geometry fits Viking's standard enclosure cutouts directly; a 2.25-inch round speaker will not seat correctly without rework in most E-series housings.
• 26-Gauge Pre-Terminated Leads: Sized for the current draw of a 100-ohm load off Viking's low-power output stage — direct board connection, no additional termination hardware needed.

Deployment Considerations:

• Confirm your specific Viking model is on the verified compatibility list (E-20B, E-20B-EWP, E-35, E-35-EWP, E-1600-30A, E-1600-30A-EWP, K-1205, K-1205-EWP, K-1270, K-1270-EWP, K-1275) before ordering — Viking uses different speaker configurations in other product families not covered here.
• EWP variants seal the enclosure interior, so this speaker will be exposed to the temperature and humidity conditions the EWP housing is rated for; confirm the installation environment falls within Viking's published EWP environmental specs for those models.

The Q171390 is the right call for any service depot or field team maintaining a multi-site Viking E-series or K-series entry phone deployment — keep a few on the shelf and you eliminate the most common audio failure mode without a board swap.