Daniel
Altec A7 "Voice of the Theater" Speaker
Description
Altec A7 "The Voice of the Theatre" speaker with vintage Cinemeccanica amplifier
Located in Sundre, but can arrange for delivery. Price is negotiable, especially if you can pick up locally. Happy to demo for serious buyers.
Note: single unit, not a pair
This speaker is both a rare vintage audio piece, and a piece of central Albertan history.
This particular unit came from the movie theatre in Sundre, AB before it burned to the ground in the early 2000s. Likely built in the early-mid 70s based on the driver model. Built to provide dynamic, clear audio for theaters, studios, and pro audio.
Includes a rear-mounted Italian vintage Cinemeccanica C55/PT amplifier from the same era, as well as a spare amp for parts.
I can include a DI and cables so you can plug and play from a phone with a USB-C connection (or could be adapted to lightning).
Speaker Specs:
Dimensions
24" deep
30" wide
54" tall (including horn)
2-way horn-loaded loudspeaker
Rear-mounted vintage VU audio level gauge
Built-in 2-way HF/MF dividing network with dials for fine tuning mids and highs
Drivers: 15" LF woofer and top mounted HF compression driver with sectoral horn
Impedance: 8 Ω
Frequency response: ~35 Hz–22 kHz (±10 dB)
Crossover: Around 900 Hz
Horn and reflex combination for dynamic punch and clarity
Amp Specs:
Inputs: 2 x 1/4" TS inputs
Note: there is space to wire an additional 2 inputs, for 4 total
High, Bass, and overall volume control faders
Small monitor speaker built into the amp face with a separate monitor volume control (the amp would have originally been mounted in the control room)
The speaker performs perfectly: clean, powerful sound with no electronic issues.
Cosmetically, the cabinet shows honest wear and scratches consistent with age, but the original Altec decals are intact and in good shape, and the paint is original. As is common with these units, the previous owner mounted the components to the cabinet for ease of setup.
This speaker sounds incredible. Its powerful bass, clean midrange, and detailed highs from horn-loaded drivers made it great not just in theaters but also for recording studios and serious home audio systems.
This would be fantastic in a number of applications, including unique home audio, recording, restaurant/bars, shops, workshops, anywhere where you want a punchy, crisp speaker with a ton of history behind it. There aren't many of these out there anymore.
For extra reading, here's some general information about the line:
The Altec "Voice of the Theatre" line is one of the most iconic loudspeaker series in audio history. Originally developed for movie theaters, studios and professional sound reinforcement in the post-WWII era.
Designed for Cinema Sound: The Voice of the Theatre series debuted in 1947, engineered to reproduce film soundtracks with remarkable clarity, dynamic range, and high sound pressure levels, something few speakers of the era could match. It was even approved by the Academy of Motion Picture Arts and Sciences’ Research Council as a standard for motion picture playback.
This speaker was built to fill large spaces with sound using very little amplifier power, thanks to horn-loaded drivers and efficient design long before high-power solid-state amps were common.
Its balance of size and performance has made it a sought-after vintage audio piece. Yields high output, remarkable dynamics, and efficient amplification.
This speaker delivers a very powerful, dynamic, and detailed listening experience.
Located in Sundre, but can arrange for delivery. Price is negotiable, especially if you can pick up locally. Happy to demo for serious buyers.
Note: single unit, not a pair
This speaker is both a rare vintage audio piece, and a piece of central Albertan history.
This particular unit came from the movie theatre in Sundre, AB before it burned to the ground in the early 2000s. Likely built in the early-mid 70s based on the driver model. Built to provide dynamic, clear audio for theaters, studios, and pro audio.
Includes a rear-mounted Italian vintage Cinemeccanica C55/PT amplifier from the same era, as well as a spare amp for parts.
I can include a DI and cables so you can plug and play from a phone with a USB-C connection (or could be adapted to lightning).
Speaker Specs:
Dimensions
24" deep
30" wide
54" tall (including horn)
2-way horn-loaded loudspeaker
Rear-mounted vintage VU audio level gauge
Built-in 2-way HF/MF dividing network with dials for fine tuning mids and highs
Drivers: 15" LF woofer and top mounted HF compression driver with sectoral horn
Impedance: 8 Ω
Frequency response: ~35 Hz–22 kHz (±10 dB)
Crossover: Around 900 Hz
Horn and reflex combination for dynamic punch and clarity
Amp Specs:
Inputs: 2 x 1/4" TS inputs
Note: there is space to wire an additional 2 inputs, for 4 total
High, Bass, and overall volume control faders
Small monitor speaker built into the amp face with a separate monitor volume control (the amp would have originally been mounted in the control room)
The speaker performs perfectly: clean, powerful sound with no electronic issues.
Cosmetically, the cabinet shows honest wear and scratches consistent with age, but the original Altec decals are intact and in good shape, and the paint is original. As is common with these units, the previous owner mounted the components to the cabinet for ease of setup.
This speaker sounds incredible. Its powerful bass, clean midrange, and detailed highs from horn-loaded drivers made it great not just in theaters but also for recording studios and serious home audio systems.
This would be fantastic in a number of applications, including unique home audio, recording, restaurant/bars, shops, workshops, anywhere where you want a punchy, crisp speaker with a ton of history behind it. There aren't many of these out there anymore.
For extra reading, here's some general information about the line:
The Altec "Voice of the Theatre" line is one of the most iconic loudspeaker series in audio history. Originally developed for movie theaters, studios and professional sound reinforcement in the post-WWII era.
Designed for Cinema Sound: The Voice of the Theatre series debuted in 1947, engineered to reproduce film soundtracks with remarkable clarity, dynamic range, and high sound pressure levels, something few speakers of the era could match. It was even approved by the Academy of Motion Picture Arts and Sciences’ Research Council as a standard for motion picture playback.
This speaker was built to fill large spaces with sound using very little amplifier power, thanks to horn-loaded drivers and efficient design long before high-power solid-state amps were common.
Its balance of size and performance has made it a sought-after vintage audio piece. Yields high output, remarkable dynamics, and efficient amplification.
This speaker delivers a very powerful, dynamic, and detailed listening experience.
Images:
- Ad Type: Offering
- For Sale By: Owner
Offer:
$
1200
In stock
2026-06-20
https://www.ohmy.ca/red-deer/buy-and-sell/musical-instruments/guitars/altec-a7-voice-of-the-theater-speaker_1943711.html
Daniel
5/
5customer reviews
Category:
buy and sell | musical instruments | Guitars
2026-05-06