PMT Audio
RTM LPR 90

RTM

LPR 90

Analog Tape

Specs

Type
Long play version of SM 900, same formulation as SM900, backcoated
Operating level
up to +3dB
Formats
¼” pancake 1100m (10"), ¼” on 10.5" plastic Trident reel (1100m), ¼” on 10.5" metal NAB reel (1100m)
Tape widths
6,3 mm (¼ inch)
Tolerances of tape width
+0.0 /-0.06 mm (+0.0 /-2.4 mil)
Base film
Polyester
Base thickness
20,0 μm (0.79 mil)
Magnetic coating thickness
11,0 μm (0.43 mil)
Backcoating
4,5 μm (0.18 mil)
Total thickness
35,5 μm (1.40 mil)
Coercivity
370 Oe
Retentivity
15 800 μm.G
Saturation flux
18 000 μm.G
Orientation
Longitudinal
Sensitivity drop for recommended bias setting (ΔS10)
+3 dB (15 ips), +5 dB (7.5 ips)
Maximum output level at 1 kHz, 0 VU (3% THD)
+10 dB (15 ips), +9.9 dB (7.5 ips)
Print-through
-56 dB (15 ips), -56 dB (7.5 ips)
Leader tape
No leader tape included
Made in
France

Source: RTM LPR90 technical data sheet (PDF)