Crown 714

The Crown 714 (most commonly documented as Crown 714C or 714C in collector references) is an extremely rare vintage open-reel tape recorder from Crown International (Elkhart, Indiana, USA), produced circa 1963–1966 as part of the early tube-based (valve) 700 series (often referred to as "C Decks" or "CW" series in archives). This transitional lineup bridged Crown's earlier consumer models and the solid-state professional 700/800 series (from mid-1966 onward). The 714/714C was configured as a four-track stereo (¼-track two-channel stereo record/playback) deck, offering bidirectional recording for extended play on standard tapes while maintaining high-fidelity stereo performance—positioned for serious hi-fi enthusiasts, small studios, or semi-pro users seeking multi-track versatility in a tube-era machine.

This model is among the scarcest in Crown's catalog, with surviving examples appearing sporadically in vintage sales (e.g., eBay, Reverb, Canuck Audio Mart) often at premium prices ($1,000–$2,000+), frequently as restoration projects or paired with accessories like tube mic preamps (e.g., RPA units). It shares the professional-grade build of the series (e.g., siblings 701 full-track mono, 702 half-track mono, 712 half-track stereo), emphasizing rugged American engineering, warm tube sound, and gentle tape handling.

Key Technical Specifications 

• Tape Speeds: 3.75 ips, 7.5 ips, and 15 ips (three professional speeds for high-fidelity mastering at 15 ips, balanced hi-fi at 7.5 ips, or extended play at 3.75 ips).

• Frequency Response: 20 Hz to 30 kHz (±2 dB at 15 ips; characteristic slight high-end contour/bump for enhanced "tape warmth" and blooming dynamics rather than strictly flat response—often cited as one of the best-sounding Crown tube machines).

• Signal-to-Noise Ratio: Approximately 51–56 dB (e.g., ~56 dB at 15 ips, ~54 dB at 7.5 ips, ~51 dB at 3.75 ips on premium tape; respectable for tube-era quarter-track stereo, aided by careful design).

• Track Configuration: Four-track stereo (¼-track two-channel; bidirectional record/playback for four tracks total—two forward, two reverse—allowing longer stereo sessions or overdubbing potential).

• Heads: 3-head design (erase, record, playback); permalloy construction with precision micro-gap and hyperbolic contour for stable alignment and clean stereo imaging.

• Reel Sizes: Up to 10.5" NAB professional reels (standard for extended recordings; original hub adapters often included on surviving units).

• Motors: 3-motor transport (hysteresis synchronous capstan drive with flywheel; separate plug-in reel motors; differential-magnetic braking for smooth, padless, gentle stops/starts to minimize tape wear).

• Timing Accuracy / Wow & Flutter: Speed accuracy ~99.8%; wow & flutter low (~0.1–0.2% range, strong stability for the era, comparable to Ampex or Berlant Concertone contemporaries).

• Other Features:All-tube electronics (high headroom, warm harmonic distortion character typical of Crown's pre-solid-state designs).
  NAB equalization (separate per-speed settings; CCIR optional in variants).
  Separate bass/treble boost controls on both record and playback.
  Inputs: Microphone and phono/line; outputs: Cathode follower.
  Controls: Forward/stop/play/record, thread/idle, rewind, bias lock, equalization (per speed), reel-size switch.
  DC valve filaments for reduced hum.
  Automatic stop, fast rewind (~38–60 sec for typical reels).
  THD: Less than 1.5%.
  

• Weight: Around 40–50 lbs (overbuilt, rugged chassis for low resonance and durability).

• Original Price: Approximately $700–$800+ range (premium for early-to-mid 1960s high-end four-track stereo tube recorder; comparable to contemporaries).

Design and Build Overview

The Crown 714/714C featured a professional 3-motor direct-drive transport for precise tension control, minimal wow/flutter, and reliable four-track stereo operation—foundational to later solid-state refinements. Tube amplification provided dynamic, high-headroom performance with signature warmth (slight frequency contouring for a "blooming" or "tape-like" sound). Braking was differential-magnetic for consistent, gentle action without mechanical pads.

It inherited some traits from earlier "B Deck" designs (e.g., potential head alignment challenges in related assemblies, piano-key controls prone to long-term failure), but advanced toward multi-track capability. The four-track stereo format offered versatility for stereo recording with reserve tracks for overdubs or backups, suiting evolving hi-fi and semi-pro needs before quarter-track became ubiquitous in consumer decks.

Today, the 714/714C is an ultra-rare collectible, known primarily through museum archives (e.g., Museum of Magnetic Sound Recording profiles), collector sites (reel-reel.com), and sales listings. Restoration involves electrolytic recapping, tube sourcing/replacement, motor bearing service, head relapping/alignment, and control cleaning (piano keys often degrade). It holds significant historical value as one of Crown's finest-sounding tube machines before the shift to solid-state dominance (tape production ended ~1977).