Studer-Revox                            
Model (see top page for legend)
Year
Heads
F.R.,
±3dB, Hz-kHz
W&F, WRMS,
%
S/N, NR off,
dB
S/N, Best NR,
dB
NR & Bias
Rec. Cal.
Auto
Reverse
Drive
Motors
Weight, kg
Price, MSRP,
USD
Notes
A710
1981 3 30-20
0.035 58 68 B
Auto
No
Closed
4 10.4 2,200 Professional, Balanced input/output
B710
1981 3 30-20
0.035 58 68 B
Auto
No
Closed
4 10.4 1,900  
B710mkII
1982 3 30-20
0.035 58 72 B/C
Auto
No
Closed
4 10.4 2,000  
A721
1985 3 20-20
0.035 58 72 B/C/H
Auto
No
Closed
4 10.5   Professional, Balanced input/output
B215
1985 3 30-20
0.035 58 72 B/C/H
Auto
No
Closed
4 9.2 2,300  
B215-S
1988 3 30-20
0.035 58 72 B/C/H
Auto
No
Closed
4 9.2 2,900  
C115
1990 3 30-20
0.042 58 72 B/C/H
Auto
No
Closed
3 9.2   Professional, Balanced input/output
H1
1990 3 30-20
0.035 58 72 B/C/H
Auto
No
Closed
4 9.2 2,995  
H11
1990 3 40-18
0.042 58 72 B/C/H
Auto
No
Closed
3 9.2 1,990  
B21 Emotion
1992 3 30-20
0.042 60 73 B/C/H
Auto
No
Closed
3 10.6 2,995  
B21mkII Emotion
1997 3 30-20
0.042 60 73 B/C/H
Auto
No
Closed
3 10.6 2,995  
Evolution
1997 3 30-20
0.042 60 73 B/C/H
Auto
No
Closed
3 7.0 1,995 Vertical cabinet