Question about Technics SB-AS500 Subwoofer

Open Question

The problem is, I have no schematic for the amp

Do you know where i could get one? I need to modify it so the low pass filter is 4th order

Posted by on

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How to connect panasonic sb-dk-10 subwoofer speakers to another reciever


Yes... and no...sort of. The blue/gray wires can connect to a normal front channel (or rear) just like any other speaker would. However, the red/black (low frequency) need to connect to a dedicated LF connection. Most receivers don't have this output. What you could do is order a Low Pass filter and install it in line with any channel of the receiver you're not using. If the receiver has A/B speakers selectable then you should use the B output to this channel using the low pass filter (I'd order a 200Hz low pass filter .. PartsExpress has many lowpass filter options plus you can call them.

Feb 27, 2016 | Panasonic Audio Players & Recorders

1 Answer

I put a sub in my 2002 Altima but when I turn it up the bass cracks on the door speakers??? What do I do to get all the bass on the sub


Hi Ethan,

What you're looking for is called a "crossover". A crossover is an electronic filter for an audio or speaker circuit. In an audio circuit, a crossover is used to prevent or pass certain frequencies or a range of frequencies from passing through it. Since your sub will reproduce the bass or low frequencies, you don't want other speakers to reproduce them. A band pass filter on your door speakers will do this for you. A band pass filter passes only a range or "band" of frequencies and blocks those that are above and below the range or band of frequencies selected. Installing a band pass filter will prevent the very high & very low frequencies from getting to the door /dash speakers. Likewise, you should consider connecting a low pass filter to your subs, too. The low pass filters work a little differently from of the way band pass filters work - they only allow low frequencies to get to the sub - blocking all the other higher frequencies (your other speakers are better suited to reproduce those). Lastly, you would install a high pass filters on tweeters. Tweeters are designed to reproduce only the high frequencies - sending mid and low frequencies to them is wasting power and can cause damage to them.

You purchase the filters for specific crossover points (the block / unblocked point) as determined by the individual speakers. If a sub has a frequency response of 20Hz - 100Hz, a low pass filter of 100Hz would be ideal. Remaining filters would need to begin at 100Hz - assuming the mid-range speakers have a frequency response beginning at 100Hz. A band pass filter of 100Hz - 3KHz would fit the bill nicely if the mid-range speakers go up to 3Khz Match the high end of the band pass to the high end of the frequency response of the mid-range speakers. Next, a high pass filter at 3KHz would allow only the high frequencies to your tweeters. Basically, you want to have the entire audible range 20Hz - 20KHz covered by the speakers and have the crossover points that match the frequency response ranges of the speakers.

I hope this helps & good luck!

Apr 12, 2012 | Pioneer Car Audio & Video

1 Answer

Is the bass boost the gain or frequency knob?


Bass boost simply adds DB or gain to the bass signal. Some like it, some dont.
The frequency knob is the Low Pass Filter (LPF) that cuts off the amp output above
the set frequency. A bass system usually cuts off below 400 HZ and more often 200HZ.
A good, rattle your car bass note is in the 25-80HZ range or lower but most amps and audio
input devices cant attain a good low note with clarity.
"Low-pass filter allows only frequencies below the crossover point to be amplified. A high-pass filter allows only frequencies above the crossover point to be amplified - useful for keeping low bass away from small speakers, so they can play more efficiently."
Checkout Crutchfields Glossary of Car Amps.
http://www.crutchfield.com/S-LPyoWWgD5qN/learn/learningcenter/car/amplifiers_glossary.html

Mar 14, 2011 | Rockford Fosgate Car Audio & Video

2 Answers

Adcom GFA 5500 'mechanical' hum from amplifier


Possibly. Most amps filter out line hum via low-pass filters. If you can locate a schematic, those would be the caps to check.

Apr 24, 2010 | Adcom GFA-5802 2-Channel Amplifier

1 Answer

I installed a sony x plode amp in a 2005 corolla which had a stock six speaker amp by jbl which came with car i also bought a jensen hd dvd radio i installed radio but need a wiring schematic to by pass...


If I am going to have a car and do a lot of audio installations, I try and order the manual for it. The manual usually has a full wiring schematic. You might call down to your local Toyota dealership and see if they can help you with the wiring schematic.

Also, you could just run new speaker wires. I know its a pain, but that is another alternative. With that being a newer car though I can understand not wanting to start tearing off internal moldings.

Aug 04, 2009 | JBL SCS145.5 System

1 Answer

Music is coming through my sub as well as bass


your amp might have a low pass filter and a high pass filter make sure it is switched to low pass and that should prevent music from coming out of the subs and just alow the bass too

Jun 11, 2009 | Car Audio & Video

1 Answer

Lightning strike to powered console.


On a generic level, without knowing the specifics of your equipment, I.E. amp & mixer make/model, you start at the mixers input stage. If an amplifiers output transistors die, they usually cause the amp to trip or blow a fuse, the weakest point in the system. If the amp is not doing this then the chances are, it's an line level problem, mixer related.  Again, you have to list the equipment you have in order for me to be more specific.

Nov 02, 2008 | Peavey AMPLIFIER, 1000 WPC, DDT, 8/4/2...

1 Answer

Proper mode settings


Hi bongodboss

The user manual for this amp has good instruction on how to connect it. You can download a copy from here.

Page 9 has info about using the amp for "bi-amping" The amp is only a stereo unit, so to do a 3-way system, you will need at least 1 amp mono in bridge mode for lows, and other stereo amp for mods, and another stereo amp for highs. You could use the internal low pass filter for the bottom end, and a 2 way crossover for the mids and highs. Much simpler doing a 2 way system with composite bins for mids and highs, and subs for lows. You only need the 2 amps and use the low and high pass filters inside the EP2500. If you need anymore help on this, I am happy to talk to you more.

regards
robotek

Jul 10, 2008 | Behringer EUROPOWER EP2500 Amplifier

1 Answer

My amp


4 CHANNEL-1100w MAX
HIGH ENDURANCE SLIM AMPLIFIER
4 CHANNEL [2 OHM] 110W x 4
4 CHANNEL [4 OHM] 80W x 4
2 CHANNEL MONO [4 OHM] 220W x 2
2 OHM LOAD CAPACITY
VARIABLE LOW [40-250Hz] PASS FILTER
VARIABLE HIGH [40-250Hz] PASS FILTER
BASS BOOST
RCA PRE-AMP LINE OUT
SPEAKER LEVEL INPUT

http://www.bcae1.com/repairbasicsforbcae1/repairbasics.htm
This is a really good site to learn about repairing amps and anything else you want to know about car audio. Are you wanting to replace the board or looking for someone to repair your amp.?

Apr 18, 2008 | Audiofonics ADF-242 Car Audio Amplifier

1 Answer

600 watt 2 channel power acoustik sterling amp


On your amp, there should be a switch (on the side probably) that has "LP", "HP", and "FULL" or "OFF". This is a switch for the low pass/high pass filter. Switch it to "LP" as this will allow only low frequencies to go to your subs, what you want. If you don't have that switch, go to an audio store or online audio supplier and get either a low pass filter, band pass filter, or a cross-over, and follow the wiring diagram that comes with it to filter out the high frequencies before they get to your subs.

Oct 09, 2007 | Power Acoustik TS1440-2 Car Audio...

Not finding what you are looking for?
Technics SB-AS500 Subwoofer Logo

Related Topics:

32 people viewed this question

Ask a Question

Usually answered in minutes!

Top Technics Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

5011 Answers

T-Comtech Repairs
T-Comtech Repairs

Level 2 Expert

417 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

Are you a Technics Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...