Altec Voice of the Theatre A5

Name: Altec VOTT A5
Brand: Altec

1947 - 1970s

Altec VOTT A5 - H110 cabinet with 515 woofer, 288 driver, N500C network

Born in the golden age of cinema sound, the Altec VOTT A5 carved its niche as the sweet spot in the legendary Voice of the Theatre lineup. Not as massive as the A7, yet far more commanding than the A4, it brought professional-grade audio to mid-sized theaters—and later, to living rooms hungry for high-efficiency, big-sound realism. For vintage audio lovers, the A5 isn’t just a speaker; it’s a portal to the rich, uncompressed dynamics of analog sound at its most authoritative.

Specifications

Type	2-way, combination horn/bass-reflex cinema loudspeaker
Low Frequency Driver	Altec 515 15" woofer
High Frequency Driver	Altec 288 or 291 compression driver
Horn	811B sectoral horn
Crossover Frequency	800 Hz
Nominal Impedance	8 Ω or 16 Ω
Power Handling	50W continuous
Sensitivity	103 dB/W/m
Frequency Response	42 Hz - 16 kHz
Dimensions	40" H x 24" W x 20" D (approximate)
Weight	Approximately 120 lbs

Design Characteristics

At its core, the A5 packed the same sonic muscle as its bigger brother—the A7—featuring the rugged 15-inch Altec 515 woofer, but housed in a slightly more compact enclosure. That balance made it a go-to choice where space mattered but performance couldn’t be compromised. Whether anchoring sound in a 500-seat theater, reinforcing audio at a drive-in, or commanding a serious listening room, the A5 delivered with authority. Its combination horn and bass-reflex design ensured deep, articulate lows and crisp, dynamic highs—engineered for clarity under real-world conditions.

Similarities to A7

The DNA of the A7 runs deep in the A5. Both share the same 515-series 15-inch woofer, the 288/291 high-frequency driver, and the precisely contoured 811B sectoral horn. Their crossover points and cabinet philosophies align too—both are hybrid designs blending horn-loaded efficiency with vented-bass extension. The key distinction? Cabinet tuning and volume. The A7’s larger enclosure gives it a slight edge in low-end reach, but the A5 trades minimal bass depth for greater placement flexibility—making it the smarter pick where space or acoustics demand compromise.

Home Use Adaptations

As cinema technology evolved, many A5s found new life outside the theater. Audiophiles quickly recognized their potential: high sensitivity, robust power handling, and a transparent, dynamic soundstage. The A5-8, a refined home version stripped of the cinema-specific side baffles, became a favorite among collectors. It offered nearly A7-level performance in a slightly more domesticated footprint—ideal for those who wanted vintage grandeur without sacrificing room real estate.

Variants

A5-500: Original cinema version with side baffles for wide dispersion
A5-8: Streamlined home variant, sans wings, optimized for stereo listening
A5-500-8: Updated 8-ohm version for broader amplifier compatibility

Historical Significance

The A5 stands as a testament to Altec’s vision: a scalable, modular speaker system that preserved sonic integrity across venues. It wasn’t just a smaller A7—it was proof that professional sound could be adapted, not diluted. From drive-ins to hi-fi sanctuaries, the A5 bridged worlds. Today, well-preserved units remain prized in restored theaters and private collections, where their punchy, lifelike delivery continues to impress.