Berlant Concertone 1000

The Berlant Concertone 1000 (sometimes listed simply as Concertone 1000 or under the Berlant/Concertone branding) is a vintage open-reel tape recorder from the mid-1950s era, produced by Berlant Associates (later evolving into the Concertone line) in Los Angeles, California. It appears as a rarer or less-documented model compared to staples like the 1401 or 20/20 series, with surviving examples occasionally appearing in vintage sales (e.g., on platforms like eBay or Worthpoint) often bundled with a hard carrying case, suggesting it was designed with some portability or semi-professional use in mind.

This model fits into Berlant's lineup of high-fidelity, tube-based mono (or early stereo-capable in variants) tape machines from the early-to-mid 1950s, emphasizing robust American engineering for home hi-fi enthusiasts, broadcasters, or semi-pro applications. Berlant pioneered many aspects of magnetic tape recording in the U.S., with founder Emmanuel "Bert" Berlant holding key patents in transducers and mechanisms.

Key Technical Specifications 

Tape Speeds: Likely 7.5 ips and 15 ips (standard professional/hi-fi speeds for the brand; some Berlant models offered 3.75 ips in later variants, but 1000-series context aligns with higher speeds).

• Frequency Response: Approximately 50 Hz to 15 kHz or better (early Berlant machines like the 1401 achieved this; mid-1950s models improved toward 20 Hz–20 kHz in premium lines like the 20/20).

• Signal-to-Noise Ratio: Around 50–55 dB (typical for tube-era designs without advanced noise reduction).

• Reel Sizes: Up to 10.5" NAB reels (common for Berlant's pro-oriented decks; compatible with smaller 7" consumer reels).

• Motors: 3-motor transport (separate capstan, supply, and take-up for stable tension and low wow/flutter).

• Timing Accuracy / Wow & Flutter: ~0.1–0.2% (Berlant was noted for precision, rivaling Ampex in mechanical stability).

• Track Configuration: Primarily full-track or half-track mono (some Berlant/Concertone units supported dual-track or early stereo; exact for 1000 is mono-focused based on era).

• Heads: 3-head design typical (erase, record, playback) for monitoring while recording.

• Weight: Substantial (likely 40–50+ lbs, similar to contemporaries; often mounted on a cast-aluminum chassis for rigidity).

• Build: Cast-aluminum plate/chassis mounting the transport, motors, heads, tube electronics, and power supply; often in a portable suitcase-style enclosure or rack-mountable variant.

• Original Price: In the $300–$600 range (positioned as premium; e.g., the 1401 was ~$345 in 1950, with later models higher).

Design and Build Overview

The 1000 featured Berlant's signature direct-drive three-motor system (no belts or clutches in many designs), providing smooth, accurate spooling and low-maintenance operation. It used vacuum-tube amplification typical of pre-transistor audio gear, with high-quality components for low distortion and good headroom. The tape path emphasized precision alignment, NAB equalization, and compatibility with 1/4" magnetic tape.

Berlant machines were highly regarded in the 1950s for outperforming many consumer decks and approaching professional standards (e.g., used by figures like Paul W. Klipsch for demos). The 1000 likely bridged early models like the 1401 (1950, basic hi-fi) and later ones like the 20/20 Series (1954+, improved frequency response and stereo options). It may have been a transitional or variant model before the brand shifted toward models like the 505 (licensed to TEAC in the 1960s).

Surviving units are collectible rarities, often sold "for parts" or restoration due to age-related issues (caps, tubes, belts if any, mechanical wear). They represent an important chapter in U.S. analog recording history, predating the Japanese-dominated 1960s–1970s market.