UHER 4400 Report Monitor Reel-to-Reel Recorder
5 inch portable - broadcast/studio/cinema quality


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How to change drive belts in your UHER 4400




Description:

Thee-head deck with switching for "off-tape" monitoring, record level control through new 
easy-to-read peak-level meters, LED function indicators, integrated power supply at mike 
socket for condenser microphones, meter illumination with automatic time switching, fully
 electronic amplifier switching, playback amplifier with balanced input, buffer battery
operation with inserted storage battery while amplifier is connected to UHER power supply
 unit/battery charger Z124AI.  Upon mains power fall-out, the inserted battery automatically 
assumes the task of delivering the power supply.  When mains power is restored, the 
battery is switched to recharge once again.

Performance Specifications:

Tape speeds: 19cm/s, 9,5cm/s, 4,7cm/s and 2,4cm/s. 
Speed Deviation: less than 1,5%. Max spool size: 13cm(5"). 
Frequency response(DIN 45 500) 19cm/s: 20-25.000Hz, 
9,5cm/s: 20-16000Hz, 4,7cm/s: 35-13.000Hz, 2,4cm/s: 25-6000Hz.
Wow and Flutter (DIN 45 507) 19cm/s less than 0.15%, 
9,5cm/s less than 0.20%, 4,7cm/s less than 0.25%. 
Generator frequency: 100khz. 
Signal-to-noise ratio(DIN 45 500) 19cm/s better than 64db, 
9,5cm/s better than 62db, 4,7cm/s better than 56db. 
M.O.L 10khz/315hz: 19cm/s -5.5db, 9,5cm/s -9.5db, 4,7cm/s -11db. 
Erasure: better than 80db.Output monitor: radio/phono 0.775 V/5.6kohms. 
Crosstalk: better than 45db. 
Input microphone: 0.10mv-40mv 200ohms. 
Radio: 1.0mv-400mv 10kohm. 
Phono: 50mv-20v 470kohms. 
Output power at 4 ohms: 2x0.80W. 
Power consumption: approx. 3W at 6V.. 
AC power supply:100-130V,200-240V AC (50-60Hz). 
Main unit Z124 AI, Accumulators, batteries or car batteries.  DC 6V. 
Dimensions: (WxHxD) 28.5x10x23.5cm. 
Weight: 3.8kg.


The 4400 Reprt monitor offered four tape speeds (7½, 3¾, 1 and 15/16 ips), three heads and a 5" reel
capacity plus a clear cover to keep the dust and dirt away from the tapes. This machine was very 
reminiscent of the Nagra 4.

Recording options were multiple;  Independent 'rec I' & 'rec II' inputs with a master control; ability to record 
in stereo, or Chan I/Chan II independently and the ability to be used for film soundtracks, (one channel 
serving to carry sync tone).
 
Unlike the Nagra (which only had one meter), the Report Monitor 4400 boasted two large, round backlit 
VU meters; one each for channel I and channel 2. Meter 2 doubled as a volt meter to monitor battery
strength. (five "D" cells were used).   
Rugged die-cast chassis construction was employed to survive difficult "out in the field" recording projects. 
Integrated power supply (also known as 'phantom power') was available at microphone input socket for 
condenser microphones.  It featured fully electronic amplifier switching and a playback amplifier with
balanced input.  The built-in speaker could monitor left, right or both channels. 
 
The grey UHER Model 4400 Report Monitor was an older model while the dark brown cases signified a
slightly more recent version.   Still sought after by collectors and audiophiles, these units cost over $2000 
when new.   In repairable condition these units command $100 to $200.  In working condition but needing
routine service and alignment you can expect to pay $200 to $450.  If you are fortunate to find a fully
restored unit operating to original manufacturers specifications, it's not uncommon to pay $600 or more.

For used UHER recorders, parts and accessories contact uher@mattapoisett.org or visit my auctions
on eBay.





4400 demo of unit sold on eBay: