Crown

Professional power amplification, full stop

History

Key Facts

Legendary Products

Crown DC300 (1967)

Crown D150 (1970s)

Crown Macro-Tech 1200 (1980s)

Crown Power Line Four (1980s)

Sound Signature

Crown amplifiers deliver clean, effortless power with the kind of headroom that makes dynamic peaks feel unlimited. The legendary DC300, rated at a conservative 150 watts per channel, actually delivers significantly more in practice — Crown's engineering culture of understating specifications means you always have reserves in hand. The sound is neutral and transparent, with wide bandwidth and vanishingly low distortion that lets the source material come through without editorializing.

What sets Crown apart from consumer hi-fi amplifiers is their ability to drive any load without breaking a sweat. These were designed for touring sound systems where failure was not an option, and that over-engineering translates directly to home audio performance. The bass control is exceptional — tight, authoritative, and deep — while the midrange and treble are clean and extended without any harshness. Crown amplifiers do not add character to the music; they simply deliver whatever you feed them with absolute authority.

Collecting Crown

The DC300 is the essential Crown collectible — the amplifier that proved solid-state could serve professional audio, and one of the most influential power amplifiers ever designed. Its 20+ year production run means examples are available, but early units from the late 1960s carry the most historical significance. The D150, a smaller sibling, is the practical choice for home audio and found its way into many recording studios where it became the monitoring standard.

The Power Line series brought Crown's professional engineering to the consumer market, and the Power Line Four in particular offers DC300-derived performance in a more living-room-friendly package. For those with the space and ambition, Macro-Tech amplifiers from the 1980s and 1990s represent the ultimate Crown statement — these are serious professional tools that can drive virtually any speaker to its full potential. Crown's conservative power ratings mean that even modest-looking models deliver more real-world output than their specifications suggest.

Competitors & Comparisons

Amplifiers

• 800 Series (Various Models) (1970) — A family of high-performance professional audio components from Crown, including preamps, power supplies, and accessories.
• 800-Series — Crown 800-Series — an ambiguous Crown designation spanning a tape-recorder line and other product families; no verified specs, years, or prices in the record.
• C-4 (1965) — Crown C-4 (1965) bookshelf speakers weigh just under 40 pounds and promise excellent sound reproduction — a rare, heavy-built pair from Crown's early hi-fi era.
• D-150 — Crown D-150 stereo power amp: 75W/ch, direct-coupled, IOC distortion monitoring, 1970s professional-grade design
• D-150A (1975) — Crown D-150A (1975) stereo power amp — 80W/ch into 8Ω, DC-coupled to 20kHz, IOC distortion detection, brushed aluminum chassis.
• D-150A IOC — Crown D-150A IOC stereo power amplifier (1978–1983). Compact 75W/ch workhorse with IOC distortion-monitoring circuitry, reviewed in Modern Recording.
• D-60 (1972) — Crown D-60 dual-channel power amplifier — a compact 1970s solid-state Crown, documented mainly through its service manual and period ads.
• D-75 (1958) — Crown D-75 (1978) 1U rack-mount stereo power amplifier with IOC distortion detection, 35WPC, fanless design — a pro audio classic
• D-75 IOC — Crown D-75 IOC (1981–1984) — compact professional power amp with patented output stage, IOC distortion detection, and 75W/ch at 4 ohms.
• DC-150 (1967) — Crown DC-150 (1967) solid-state power amp—150W/ch, DC-coupled design, dual-mono supply, bridged-mono 300W into 8Ω. A pioneer of professional solid-state audio.
• DC-150A (1972) — High-power solid-state stereo amplifier from Crown, known for reliability and professional-grade performance in the 1970s.
• DC-300 (1971) — Crown DC-300 (1971) — 150W/ch dual-mono power amp, $685 new, workhorse of pro audio. Specs, service notes, and current market value.
• DC-300A (1971) — Crown DC-300A (1971) power amplifier with 150W/channel, DC-coupled design, and forced air cooling — a professional solid-state workhorse.
• GOLD CROWN STEREO X (1975) — High-power stereo amplifier from Crown's legendary Gold Crown series, known for robust performance and professional-grade reliability.
• IC-150 (1971–1977) — Crown IC-150 (1971–1977) preamp — 1Hz–100kHz response, 100dB S/N, panorama control. A transparent, no-frills vintage control center.
• IC-150A (1972) — Crown IC-150A (1976–1977) — 9.1 kg solid-state preamp with 3Hz–100kHz response and panorama control. A stealthy Crown classic.
• M-2000 (1975) — A high-power external amplifier module designed for professional and high-end audio systems, part of Crown's modular M-series.
• M-600 — Crown M-600 professional power amplifier — 600W/ch continuous at 4 ohms, 1200W bridged, 48 lbs of Class AB engineering. Covers production years.
• Tube Power Amplifiers (1950) — Vintage tube amplifiers from Crown, known for early professional audio innovation and robust build quality. This page has the complete spec table.
• XLS1502 — Crown XLS1502 Power Amplifier: 775W per channel, 11 lbs, DriveCore 2, DSP, and Speakon outputs. A pro-grade workhorse built for reliability.
• XTI 6002 — A DSP-controlled power amplifier from Crown’s XTi Series. Includes the complete spec table and when it was made. Includes the complete spec table.

Microphones

• PZM-30GP — Little is documented about the Crown PZM-30GP pressure-zone microphone; Audio (March 1983) listed a hemispherical electret condenser, 50 Hz–15 kHz.
• PZM-30GPB — Amcron PZM-30GPB pressure zone microphone, 1978, $239, 50-15k Hz, hemispherical polar pattern, phantom powered, boundary mic design.

Power Amplifiers

• 150A — Amcron 150A professional power amplifier, documented through Studio Sound ads and a Modern Recording spec table. DC-coupled, 1-ohm capable, 200W/ch claimed.
• 300A — Amcron 300A (DC-300A / DC 300A Series II) professional power amplifier, 500W RMS per channel, used by Rolling Stones and Led Zeppelin.
• DC-300S — Amcron DC-300S professional power amplifier. Almost nothing is documented about this model beyond its place in the DC-300 series lineage.
• Macro-Tech 1200 (1980s) — Crown Macro-Tech 1200 professional stereo power amplifier from the 1980s — 310 W/ch into 8 ohms, ODEP protection, IQ-P.I.P. module slot, used in concert and theater sound.
• Macro-Tech 3600-VZ — Crown Macro-Tech 3600-VZ professional power amp — 3,600W bridge-mono into 4 ohms, VZ variable-impedance supply, ODEP protection, 2U rack. Thin documentation; advertised power only.
• SA-30 — Crown SA-30: a little-documented solid-state power amp from the late 1960s. Known specs from a June 1967 new-product note: 20 W/ch (8 ohms), 30 W/ch (4 ohms).

Preamplifiers

• DL-2 — Crown DL-2 stereo preamp from the 1970s. Dual-mono toroidal supply, discrete Class-A phono, direct-coupled outputs. Thin documentation; specs from a single source.
• SX-724 — Crown SX-724, a little-documented professional four-track stereo reel-to-reel tape deck from the late 1960s. Only period magazine listings confirm its existence.

Processors

• CX-724 (1995) — A professional-grade 2U rackmount equalizer designed for live sound and studio applications, part of Crown's reliable CX series.
• EQ-2 (1975) — A professional-grade stereo equalizer from the 1970s, the Crown EQ-2 offered precise tone shaping for studio and high-end audio systems.
• ES-212 — Crown ES-212 electrostatic speaker system, c.1976–1977. Three-way design with 5-inch midrange, Mylar dome tweeter, piezoelectric superhorn. 25–22,000 Hz, 125W.
• ES-224 — Crown ES-224 speaker, c.1975. Only known reference: a classified ad in Audio (Sep 1975) offering new pair for $1200. Virtually undocumented.
• ES26 (1978) — A professional-grade 1/3-octave graphic equalizer from the late 1970s designed for live sound and studio applications. Covers when it was made.
• OC-150A — Documentation on the Crown OC-150A is thin. What the record shows: it was a 2-way loudspeaker system from Crown International.
• RTA-2 — Crown RTA-2 late-1970s room testing analyzer accessory, compatible with Crown RTA-1, measures RT-60 reverberation time. Find production years here.
• VFX-2A — Crown/Amcron VFX-2A — a vintage two-way stereo or mono three-way analogue crossover, valued for transparency in JBL and Altec systems.

Reel To Reel

• SS-824 — Crown SS-824: mid-1960s multi-speed quarter-track stereo/mono tape recorder with solid-state control center. Little-documented; period price $945.

Speakers

• COMPACT-LOUDSPEAKERS (1970) — A compact public address speaker system from Crown, designed for clarity and durability in commercial and institutional environments.
• ES14 (1978) — A classic near-field studio monitor from the late 1970s, designed for accurate audio reproduction in professional environments.
• POWER-LINE-ONE (1975) — Crown Power Line One (1978–1979) — 35.2 lb MOSFET power amp with 100W/channel output. A no-frills analog workhorse from Crown's late-'70s lineup.
• PRO-800-SERIES (1975) — A professional-grade series of modular audio components from Crown, designed for studio, broadcast, and live sound applications in the 1970s.
• PS-600 (1975) — A high-performance passive crossover designed for professional and high-fidelity audio systems. Covers full specifications and production years.
• PZM Series (Various) (1980) — A groundbreaking series of boundary microphone systems from Crown Audio, renowned for their clarity, natural sound pickup, and innovative pressure zone design.
• PZM-30 Series (1980) — A pioneering series of boundary microphone systems known for natural sound capture and innovative phase-coherent design.

Unknown

• 102 — No verifiable facts found for Crown 102 in any period source — identity, specifications, and production history are entirely undocumented.
• CX-744 — Little is documented about the Crown CX-744. What the record shows: it was a professional-grade reel-to-reel tape recorder, appearing in classified
• DI-50A — Amcron DI-50A power amplifier (c.1976). Pro-audio successor to the D150, DC-coupled, 200W/ch, drives 1 ohm loads. Little documented beyond period trade announcements.
• Macro-Tech 5000VZ — Crown Macro-Tech 5000VZ — 2,500 W/ch into 2 ohms, 5,000 W bridged, VZ power supply and ODEP protection in 5¼ inches of rack space.
• PS-400 — Crown PS-400 professional power amp (c.1982-83). 260W/ch into 4 ohms, 520W bridged. MULTI-MODE output, IOC diagnostics, modular options. Service manual survives.
• VFX-2 — Amcron VFX-2 dual-channel crossover/filter with 20 Hz–20 kHz adjustable filters and 18 dB/octave rolloff. Little else documented beyond period Studio Sound ads.

Other Models

• CE-1 — Crown CE-1 early 1970s studio condenser microphone, phantom powered, with switchable low-frequency roll-off and -10dB pad.
• D 150A II — Crown D 150A II power amplifier — 80W/ch stereo, 250W bridged mono, DC to 20 kHz ±0.1 dB. The DC300's compact sibling.
• D 45 — Crown D 45 stereo power amplifier (1980–1985). 110W/ch into 8 ohms, Class AB, fan-cooled pro amp from Crown's D series. Find production dates here.
• D-500 — Crown D-500 — obscure high-current power amplifier from Crown's War Against the Beasts era, known for driving 1-2 ohm loads.
• DA-1 — Crown DA-1 (1986–1990) — Crown's first digital amplifier, the world's first commercial digital amp, using Class-I technology with MOSFET switching.
• DC 300A SERIES II — Crown DC-300A Series II dual-channel power amp: 305W/ch into 4 ohms, 610W bridged mono, damping factor >750. A pro-audio workhorse with legendary reliability.
• DC-300A II — Crown DC-300A II direct-coupled power amp — 250 W/ch into 4 ohms, DC-to-20kHz response, AB+B output stage, JTS protection.
• DC-300A IOC — Crown DC-300A IOC stereo power amplifier, 155WPC, 21.8 kg beast with IOC distortion monitoring—rare late '70s high-end solid-state muscle.
• Macro-Tech — Crown Macro-Tech — the Grounded Bridge touring amp family that drove the Indy 500 PA. ODEP protection, VZ power supplies, still racked decades later.
• Macro-Tech 10 — Crown Macro-Tech 10,000 — 128 lb grounded-bridge power amp rated 2,190W/ch into 4 ohms, sub-1-ohm stable, factory-service only.
• PCC-160 — Crown PCC-160 boundary mic — half-supercardioid electret condenser, 50Hz–18kHz, 120dB SPL, steel body, bass-tilt switch. Stage, lectern, broadcast.
• PS 800 — Crown PS 800 stereo power amplifier — a scarce designation. What the Archive has been able to confirm, and what has yet to surface.
• PS-200 — Crown PS-200 rack-mount power amp from the Power Line series — modular inputs, 70V option, MULTI-MODE circuit, 270W mono into 8 ohms per 1983 Crown advertising.
• PX-18B — Crown PX-18B transformer power supply for PZM mics — the unbalanced-input companion to the PA-18B, with known grounding quirks.
• PZM-30GPG — Crown PZM-30GPG pressure zone microphone — gold-finished boundary electret, 50 Hz–15 kHz, 150 ohms, $349 list, reviewed by Audio in 1983.