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There are currently no product reviews.
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I received a good service manual, with good resolution. Improve the instructions for the purchase because they are not well understood.
For the rest, so good.
Thanks Angel.
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Very good documentation for the Grundig 2077 model (as well as similar 800/900/1000 series radios). The first two pages are a summary of reception specifications and output capability. The third page is the tuner dial indicator and dial cord routing diagram. the final ~5 pages are the schematics for the various models (including 2077). The scan quality of the schematics are good, adn can be easily read if zoomed in. The documents are in German, not English as stated. It would have been nice to have the tuning sequence and settings, and some trouble shooting materials... or component and wiring map.
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Perfect like it was descriped, Perfect like it was descriped
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Very good detail, all pages clear, exactly what I needed
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Excellent service, and just what I needed to service my TU-7700. All pages of the manual are clear and easily readable.
Beta TwelveX 12" Woofer � Technical Data
SEALED BOX VOLUME VENTED BOX VOLUME
length = 9.54"
Port
fo = 33 Hz
Beta TwelveX
(side view)
Beta TwelveX
(side view)
VBOX = 1.20 ft3 (33.98 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
VBOX = 2.00 ft3 (56.64 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
diameter = 4"
SEALED FREQUENCY RESPONSE @ 2.83 V
100 dB In-Car 12 dB LP @ 70 Hz 105 95 100
VENTED FREQUENCY RESPONSE @ 2.83 V
dB In-Car 12 dB LP @ 70 Hz
90 Out-Of-Car 85
95 Out-Of-Car 90
80
85
75
80
70
75
65
70
60 20 Frequency 50 100 Hz 200 500 1k
C
65 20 Frequency 50 100 Hz 200 500 1k
C
2k
2k
SEALED EXCURSION/GROUP DELAY @ 300 W
20.0 Xd mM T mSec 10.0 40 17.5 7.5 35
VENTED EXCURSION/GROUP DELAY @ 375 W
Xd mM T mSec 40 30
15.0 Group Delay 12.5
5.0
30
20
2.5
25 Group Delay
10
10.0
0.0
20
0
7.5
-2.5
15
-10
5.0 Transducer Excursion 2.5
-5.0
10
-20
-7.5
5
Transducer Excursion
C
-30
0.0 20 Frequency 50 100 Hz 200 500 1k
-10.0 2k
C
0 20 Frequency 50 100 Hz 200 500 1k
-40
2k
Ininfity Technical Data . . 8�45
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