Category:Mid High Fidelity (most Japanese recorders fall into this category)
Country of Manufacture:Japan
Release dates:1965 - 1968
Speeds: 1 7/8, 3 3/4, 7 1/2, 15
Max Reel Size("): 7"
Number of heads: 3
Head Composition: Permalloy
Head Configuration: Mono - Full Track
Frequency Response:7½ ips: 40 - 25kHz
Wow and Flutter:0.16% at 7½ ips, 0.17% at 3¾ ips 0.28% at 1 ips & 0.35% at 5
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
A four-speed, quarter-track stereo mains/battery recorder with a 5″ spool capability and the Akai Crossfield head system. The X-IV had an audio output of 2 watts per channel and a single internal 5-inch elliptical speaker.
This unit was sold in the USA as the Roberts 6000.
Rewind speed: 1 minute 15 seconds for 600ft / Audio output power: two watts per channel / Speaker(s): single 5″ elliptical speaker for monitoring / Dimensions: 10 x 9½ x 4″ (254 x 241 x 102mm) / Weight: 12½ lbs (5.7kg) / quarter-track stereo