Altec Lansing PS-360 (circa 1975)

The Altec Lansing PS-360 is a two-way bookshelf or stand-mounted speaker. It was reportedly introduced in the late 1970s, when Altec was pushing professional-grade sound into the home audio market.

Altec had decades of experience in cinema sound and studio monitoring, and the PS-360 shows it. It sounds energetic and dynamic, with high sensitivity and solid power handling. Vintage audio enthusiasts like it for clarity, punch, and midrange presence.

With its distinctive horn-loaded compression driver and 12-inch woofer, the PS-360 stands out both visually and sonically. Though marketed for home use, its design principles are rooted in Altec’s legendary professional loudspeaker systems, offering a rare blend of efficiency and fidelity.

Specifications

Feature	Specification
Model	PS-360
Brand	Altec Lansing
Production Years	Late 1970s – Early 1980s
Type	Two-way, passive, reportedly acoustic suspension
Driver Configuration	12" woofer, horn-loaded compression driver
Power Handling	Up to 100W RMS (per pair, stereo)
Impedance	approximately 8 ohms (nominal)
Sensitivity	approximately 94 dB (1W/1m)
Frequency Response	45 Hz – 18 kHz (approximate)
Crossover	Built-in passive crossover
Enclosure	Reportedly acoustic suspension, wood veneer cabinet
Dimensions (H×W×D)	24" × 12" × 12" (approximate)
Weight	45 lbs per cabinet

Historical Context

The PS-360 came out during a transitional period in home audio, when consumers wanted higher fidelity and more powerful sound reproduction. Altec Lansing was already well known for professional theater and broadcast monitors like the 604 Duplex, and it set out to bring that legacy into the consumer space.

The PS-360 was part of a broader lineup that included models like the 360-8 and 360-12. They differed mainly in driver size and cabinet tuning. Many consumer speakers of the era used sealed or ported enclosures with direct-radiating tweeters. The PS-360 used a horn-loaded high-frequency driver instead, which came straight from Altec's pro-audio side. That gave it higher efficiency and dynamic range, so the speakers perform well even with lower-powered tube amplifiers.

It wasn't produced in the numbers of some contemporaries from JBL or Klipsch. Even so, the PS-360 gained a loyal following for its lively, engaging sound and rugged build quality.

Sound Signature

The PS-360 has a bold, expressive sonic character:

Midrange: Clear, detailed, and slightly forward—ideal for vocals and acoustic instruments.
Highs: Crisp and extended thanks to the horn-loaded tweeter, though some may find them bright with poor recordings.
Bass: Surprisingly deep and tight for an acoustic suspension design, with the 12-inch woofer providing solid low-end down to around 45 Hz.
Efficiency: At 94 dB sensitivity, the PS-360 is highly efficient and pairs exceptionally well with low-wattage tube amps.

The overall presentation is dynamic and rhythmically engaging, which suits rock, jazz, and live recordings.

Maintenance and Restoration Tips

Like all vintage audio gear, the PS-360 benefits from periodic maintenance, especially after 40+ years of use.

Common Issues and Solutions

Foam Surround Degradation: The most frequent issue. Original foam surrounds on the woofer often disintegrate over time, leading to distorted bass or rattling. Replacement with modern rubber or foam surrounds is recommended.
Crossover Component Aging: Electrolytic capacitors in the passive crossover can dry out or fail. Rebuilding the crossover with modern film capacitors and proper resistors improves reliability and sound quality.
Cabinet Wear: The wood veneer may show scratches, fading, or edge damage. Light polishing can revive the finish; more serious damage may require professional refinishing.
Grille Fabric: Original grilles may be torn or discolored. Replacement fabric in period-correct patterns is available from specialty audio restoration suppliers.

Recommended Upgrades

Re-foam or recone woofers using OEM-spec replacements.
Replace crossover capacitors with audiophile-grade components.
Use high-quality speaker wire and binding posts if original terminals are corroded.

Collectibility and Market Value

The Altec Lansing PS-360 holds moderate collectible appeal:

Collectibility Rating: 6/10

It isn't as well known as the 604 series, but vintage speaker enthusiasts respect the PS-360 for its pro-audio heritage and home-friendly design.

Market Value: $200–$400 per pair, depending on condition and restoration status. Fully restored units with upgraded components may command higher prices.
Rarity: Fairly uncommon today in original working condition; most available units require some level of refurbishment.

Conclusion

The Altec Lansing PS-360 suits vintage audio fans who value efficiency, clarity, and some professional audio pedigree. It has a bold midrange, dynamic delivery, and rugged construction. The aging components need attention.