Jamo SUB 250 Support Question
Jamo SUB 250 Support Question
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Question posted by Sanjaynarayan15 on August 23rd, 2020
Jamo 250 Subs Burnt Tract
hi have Jamo 250 subs. The caps seems to be faulty plus a resistor . The tracts under the caps are burnt and would like to find out how they were joined so i can jumper them.
Current Answers
Answer #1: Posted by Troubleshooter101 on August 23rd, 2020 12:53 AM
Troubleshooter101
Member since:
September 30th, 2015 Points: 2,927,030
Member since:
September 30th, 2015 Points: 2,927,030
The symptoms were.
1) Fuse blew
2) Replaced fuse and unit still worked
3) Fuse blew
4) rinse repeat
It looks like the capacitor C37 failed and was arcing across to the trace where the burn mark was.
The holes above the lettering D15 are through holes and look to be place holders for capacitor C33 (not included with this board) You can see where they come out on the bottom of the unit (between holes where I took the two caps out.)
Please check this link to a forum:-
https://forums.whirlpool.net.au/archive/1889470
Thanks
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Related Jamo SUB 250 Manual Pages
Technical Overview - Page 2
... SUB 250 has a very flat frequency response (see picture 1).
We wanted a subwoofer line up with an BASH amplifier capable of matching basically all speakers in the line up from Jamo we wanted it was to optimize every "link in a very convincing way compared to achieve several goals. The Products
SUB 250 SUB 250 is quite easy to a specific speaker...
Technical Overview - Page 3
... down to impressive 26Hz. Many subwoofers fall of very drastically above 100Hz (or some even under,
see figure x). Of
course the SUB 250 is also well suited for use together with small speakers. Still with the deepest tuning, this
subwoofer is capable of reaching
down to 28 Hz (- 6dB). With an amplifier capable...
Technical Overview - Page 4
... even better timing resulting in a musical fidelity that is even more accurate and exact than conventional ported systems. The SUB 650 is intended for high performance bookshelf and floorstanding speaker systems. The SUB 650 is placed on the front of peak power. The level control is capable of the subwoofer, elegantly integrated in...
Technical Overview - Page 5
...So, if we would also have a very big power supply since only approx 60% of the speakers. The outstanding energy efficiency (85%) achieved by not being a voltage limited amplifier it can be ...full fidelity. and variable cut off from the rest of the power is turned into sound - SUB 650 also features a 12V trigger input, so it has tremendous dynamic power capability. especially peak ...
Technical Overview - Page 6
... filter.
However, in -room frequency response. Boundary Gain Compensation
The deep frequency response of SUB 550 and 650 grants reproduction of the most rooms.
Illustration of how the Boundary Gain Compensation...acoustic
properties in the on position the bass response is more linear. Therefore, the SUB 550 and 650 have a quite unique feature: Boundary Gain Compensation is built into the...
Technical Overview - Page 7
...SUB 250, 450 and 550 cabinets. Sub 250
For the SUB 250 the woofer is probably the most remarkable feature of heavy MDF board, a solid and resonance dead base for the drivers to avoid over/under pressure behind the dust cap...left and right line level input in . In/Outputs
All the subwoofers features speaker level inputs if there is moving. The heavy magnet system features a vented pole ...
Technical Overview - Page 9
Technical Specifications
Speaker name
SUB 250
SUB 300
SUB 550
SUB 650
System Woofer
Slotted Bass reflex Port 8" down firing
Slotted Bass reflex Port 10" down firing
Slotted Bass reflex Port 10" down firing
Closed Cabinet 12" front firing
Peak power [W]
250
300
550
650
Frequency range [Hz] Impedance [Ohm] 12 V trigger Phase Cut off frequency [Hz]
30...
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