The Recordex Soundmaster IV is a high speed cassette duplicator, which makes four copies in a single pass at 16x real-time. The unit features professional all-steel construction, and separate Left/Right stereo level control, along with LED metering, for both sides of each copy. The unit is equipped with extended life stereo record and Ferrite erase heads.
| Type | High-Speed 4-Channel Cassette Duplicator |
| Track Configuration | 1/4 Track |
| Frequency Response | 40Hz - 10KHz |
| Crosstalk Rejection Typically @ 1 kHz | 45dB |
| Copy Speed | 30 ips |
| Rewind | Yes |
| Equalization | Type 1, Normal Bias |
| Signal-to-Noise Ratio | 45dB @Peak Level |
| Erase Heads | Yes, Ferrite |
| Total Harmonic Distortion (THD) | Not Specified by Manufacturer |
| Wow and Flutter | Not Specified by Manufacturer |
| Bias Oscillator | No |
| Record Level | Yes, Individual L,R Volume Control and LED Metering per Copy Well pair |
| Power Requirements | 110/220VAC, 50/60Hz Switching Power Supply |
| Dimensions | 12.5 x 18.5 x 5.75" (317.5 x 469.9 x 146mm) |
| Weight | 26.5 lbs (12kg) |