This card uses the famous Yamaha OPL3 chipset, used by many popular sound cards in the late 1980’s and early 1990’s. No emulation!Designed by TexElec in United States of America
We offer modern solutions for vintage computer systems and retro gaming. Our products are great for collectors, hobbyists and do-it-yourself’ers.
We’re proud to introduce our latest product, the Resound OPL3 Sound card! This card is an 8-bit ISA card, and will work in any PC with an 8 or 16 bit ISA slot. We even tested it in our Packard Be...Read More…
This card is an 8-bit ISA card, and will work in any PC with an 8 or 16 bit ISA slot. We even tested it in our Packard Bell PB500 in non-turbo mode. Our machine has an NEC V20 CPU, in non-turbo mode, it will be running at roughly 6 Mhz. We were able to play Space Quest III with this configuration. In turbo, it’s more playable, but the sound plays back just as it should at either speed. The card has its own 14.31818 Mhz oscillator to ensure that no matter your machine’s bus speed, you will never have any fear of the pitch changing. Most sound cards use an oscillator supplied by the ISA bus. In 95% of machines out there, this will work fine. However, there are some machines which send a slower speed to the oscillator on the bus which will cause a lower pitch than expected to play.
This card uses the famous Yamaha OPL3 chipset, used by many popular sound cards in the late 1980’s and early 1990’s. No emulation, it uses a real Yamaha YMF262 IC to do the work. The OPL3 is backwards compatible with the OPL2, so any game or application written to use an Adlib sound card will also work. We tested this card on Windows 95 OSR2 and Windows 98 Second Edition and found that it works great with the Adlib Gold driver. This driver loads the OPL3 driver for windows and supports all of the features of the OPL3 chipset. See the last pic above. (Win98 auto detects the card at install, but we had to add it manually on Win95.) Please note, this card will not playback wav/digital files, it is an FM synthesis card only. The OPL3 is the sole provider of sound.
Our card is a little different than the older ones, because it can do more! While designing the card and researching the OPL3 datasheet, we noticed a feature which never seems to have been implemented. While the OPL2 was single channel (mono), most of the OPL3 cards released supported stereo. It turns out, that the OPL3 will actually support 4 channel sound. We decided that we had to implement this, even though there are no games or apps at this time which support this mode. It is our hope that down the road, developers may decide to support this feature to offer surround! The card will still work in two channel mode just fine, as any older card would.
In addition, we added a dip switch bank on the card which will allow you to set this card to any base IO address. The original Adlib card was hard-coded to use port 0x388, but our card can use any port you like. It will ship set to 0x388, so you can just plug it in and go! It is possible you may be able to trick some apps into supporting port 0x220 like the original sound blaster, or you can just use any port you like for your own purposes or testing. It’s really just there to make the card as flexible as possible, or you can leave it where it is forever. It’s a true DIY card!
The card also has a line-level input pinned the same as any sound card input. We installed this so you can chain your other sound cards into this one if you like. This input mixes with the front channels on the card, not the rear.
Since there are no applications which support 4-Channel sound, we wrote a test application to activate all 4 Channels. We are making this program, the source-code for it, as well as the schematic available. You may download these files here: Resound-OPL3-Files.zip
A few other nerdy notes about its design for those who may be interested: The card uses high quality WIMA Film capacitors for bypassing DC in the audio path. We made a few prototypes, and wound up using bypass caps before, and after the final opamp stage to keep the card as clean sounding as possible. This will help block DC noise coming from the digital section of the card, and allow the AC audio signal to pass. We also used a 10uf & 0.1uf decoupling cap on both power rails of the TL074’s & TL072’s on the card. The TL074 are used by the Yamaha DAC, and the TL072 are the final gain-stage for output. We wound up deciding on a relatively low-gain on the output stage as the output from the DACs are fairly hot to begin with. It does a 2:1 gain, and the RMS voltage is a little lower than a line-level, but is loud enough from our testing. Setting it to 3:1 seemed to overdrive the signal slightly. This gain will also effect the input port, so please be aware that you do not want your input to be too hot.
Please watch our video below which shows the card in action! It also explains some of the technical details of the card in more detail. You can also see a review of this card by Lazy Game Reviews aka LGR from YouTube.
Feel free to ask any questions you may have before ordering. We want to make sure the card is what you are looking for! We love the DIY PC / DOS Gaming market, and hope to keep making more cards that the community can use. Thanks so much to our customers for their support, and thanks for looking!
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We package and ship every business day. All packages will be dropped off with the carrier by 12:00pm CST each business day. Any orders after that time will be dropped the following business day. There could be times when we are on vacation, on these occasions we will post a notice to the store. You can still order, but your shipment will be delayed until we return.
We will ship according to the shipping address you provide at checkout, please notify us of any address change before your order is processed to avoid package loss. If your package is shipped to the incorrect address, we cannot be held responsible and no refund will be issued.
Although we do not offer FedEx at checkout at this time, we may use it when shipping heavier packages. This is a cost effective and reliable service that we have used many times. FedEx SmartPost or FedEx Ground or Home Delivery will be used depending on the size and weight of the package. If we do ship via this method we will contact you to discuss options and get your approval before moving forward.
First Class Package will arrive in approximately 2-3 business days Parcel Select Ground will arrive in approximately 2-9 business days Priority Mail will arrive in approximately 1-3 business days Priority Mail Express will arrive in approximately 1 business day FedEx SmartPost will arrive in approximately 2-8 business days FedEx Ground or FedEx Home Delivery will arrive in approximately 1-5 business days
First-Class Mail International 14 to 90 Business Days** Priority Mail International will arrive in approximately 6-10 Business Days** Priority Mail Express International will arrive in approximately 3-5 Business Days
If you have a shipment that’s late and you have checked your tracking only to see that it seems to be stuck en route, please don’t hesitate to contact us. Our local post office is very reliable and provides excellent customer service. We will make a call and see what we can do to get your package moving again.
Sometimes there will be delays due to natural disasters or other uncontrollable events. Click the following links to check on alerts from the applicable carrier:
USPS Alerts and Service Disruptions: http://about.usps.com/news/service-alerts/welcome.htm FedEx Alerts: http://www.fedex.com/us/servicealerts/
More International Details
**PLEASE NOTE: In our experience shipping internationally, via eBay, we have learned that shipping time can greatly vary. First Class can tend to be faster than stated above depending on your country, however, we have also seen packages take up to 90 days. While it is rare it does happen, and some countries more than others. Customs has been known to hold packages for indefinite lengths of time on both the domestic and international sides. International First Class and Priority packages cannot be tracked reliably at every step along the way. This is just the way these services are setup at USPS. If you require reliable and detailed tracking please choose Priority Mail Express at checkout.
**Also note that orders shipped via USPS First Class and Priority Mail International are not guaranteed and do not qualify for a refund if they are lost in transit. Please read more about our returns policy HERE for more details about returns in general.
Customs, Duties and Taxes
All international packages will be marked as “merchandise” on the required customs forms. International customers are responsible for any applicable duty or taxes that may be related to the delivery of their purchases. If these charges apply to you they will likely be charged to you at pick up your package from the carrier.
You should expect to pay any amount charged by the government in your respective country. This includes, and is not limited to, duties, taxes and any extra fees charged by the courier company. We will not be held responsible for any extra charges once the original package has been shipped. If the customer refuses to pay these extra charges, the return shipping and any additional fees will not be paid or reimbursed by TexElec.
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