Do It Yourself

The Original Frugal-philetm, an interview with Dave Dlugos (aka planet_10), with additional comments from his audio partner Chris

The Original Frugal-philetm, an interview with Dave Dlugos (aka planet_10), with additional comments from his audio partner Chris

Dave Dlugos has been around the internet for some time. He’s been providing the DIY community with lots of help and inspiration the whole time. His sites include www.t-linespeakers.org, a site specializing in both factory built and DIY transmission line loudspeakers and derivatives, and www.planet10-hifi.com, his commercial site. He’s also been busy at www.frugalhorn.com ,(providing many free, well drawn box plans for some of the loudspeaker drivers he sells), and www.planetsofta.com (where he sells many new and used items including vintage drivers whilst his partner sells sewing patterns, craft items, and book—all of it on ebay). Dave also sells computer stuff, and does some computer consulting.

Part of the planet_10 philosophy seems to be recycling, and helping to reduce our impact on the planet. Somehow this guy seems like the kind of person I’d like to be—but simply don’t have the time to become. I have no idea how many calories a day that Dave takes in, but I imagine it’s quite a few—something has to power him to the over achieving Energizer Bunny that he must be. I have never met Dave, nor talked to him on the telephone prior to doing this interview. This interview was an email interview, that is questions were posed via email. Responses were emailed back. A telephone conversation followed up this exchange to add more of a personal sense of style and help me to ensure I portray his energy and passion in a realistic and credible way. So here goes: read more…

Fostex FE206 Driver / FE208 Sigma Cabinet

Fostex FE206 Driver / FE208 Sigma Cabinet

 Specifications:

  • FE206E Frequency response f0 – 20khz Sound Pressure Level 96db Rated Input 30w
  • Music Power 90w Overall Diameter 208mm Baffle Hole Diameter 185mm Depth 87.5mm
  • Specifications FE126E
  • Frequency response fs – 25Khz
  • Sound Pressure Level 93db Rated Input 15w Music Power 45w Overall Diameter 142mm Baffle Hole Diameter 104mm Depth 61mm

I like a bargain.

I am sure that most of you do too. However there is always lurking in the back of our minds “there is no such thing as a free lunch”. One way to accelerate your way up the Hi Fi ladder is to diy it. If you choose the components you intend to make, carefully, you can in most cases end up with something that sounds as good, if not better than similar manufactured units. The main reason to DIY is that you can save yourself a whole bucket load of money. read more…

Hemp Acoustics FR-8.0 DIY HQ Full Range Drivers.

Hemp Acoustics FR-8.0 DIY HQ Full Range Drivers.

It’s been sometime since I’ve sat down to write a review. I’ve been so looking forward to reviewing these drivers for such a long time. I had made the decision to purchase these full rangers about a year ago. They seemed reasonably priced, well built and “green”. Their stated efficiency is 96.5 dB, so even mini amp users can get reasonable levels of volume for their listening pleasure.

I’ve recently become enamored with “mini amps”, low-powered , but wonderful sounding little things after hearing a friend’s 2A3 based DIY amp. So much so that I have encouraged my eldest brother to buy himself a Decware 1.5 watt SE triode amp. Not having the depth of pockets that he has, I decided to try to emulate a low powered, but good sounding system. I think I’ve come pretty close. read more…

Infinite Baffle Subwoofer Design-Build Project

Infinite Baffle Subwoofer Design-Build Project

“Honey, I am going to cut a hole in the family room floor” …I said to my wife after deciding to design, build, and install an Infinite Baffle (IB) subwoofer system for my vintage audio system.

I first started toying with the idea of adding a subwoofer to my family room system after the restoration of my Sansui AU-717 integrated amplifier, Sansui TU-717 tuner, and JBL L96 10” three-way speakers. I really wanted the system to produce the full 20-20,000 Hz audio spectrum or better, and the L96’s would only get me down to 30 Hz or so. read more…

DIY RCA’s, interconnect cables

DIY RCA’s, interconnect cables

No one would argue these are not interesting times. One of the tiny benefits of times as interesting as these is that there are a lot of great web sites that will guide you through the process of making your own speaker cables, power cords, and interconnects. I have used some of those sites in the past while experimenting with making my own cables and I recommend them as a great staring point. This article is intended to be a next step in DIY wire assembly.

When it comes to your audio system everything makes a difference. I’m sorry to just blurt that out, but it had to be said. If you are of the mind that wires can’t, and therefore don’t, make a difference then you have my envy. You may consider this article a parody and hopefully you can enjoy it as such. What do you do when you hit upon a simple easy way to make great sounding interconnect cables? If you are me, you try to figure out how to make a superior connector to plug them into. read more…

Fixing vintage speakers that could be good Or Messing with the sound of the AR94Sx while keeping the stock drivers

Fixing vintage speakers that could be good Or Messing with the sound of the AR94Sx while keeping the stock drivers

The AR94 speaker system is the least expensive model in the early ‘80s Teledyne AR 9line of speakers that is headed by the massive (and sought after) AR9. The AR94Sx version may have been the ‘price leader’ within the 94 model designation – at least the woofer and woofer/midrange drivers are the flimsiest.

I have wondered if the mediocre performance of the Sx (mostly in the midrange, most noticeable with vocals) is responsible for the relatively low regard (and selling price) the AR94 gets in the marketplace. At least there are a lot of them available, and the price is right. Whether or not you go with foam surrounds instead of rubber, and copper wire for the tweeters instead of silver, and inexpensive polypropylene capacitors instead of his choices is very much up to you. There is no real design change here, just replacing old parts. He certainly is enthusiastic about the sound he ends up with. I tried this crossover in the 94Sx; it doesn’t work – nasty sounds in the midrange. If you do get AR94Sx speakers (they seem to be pretty common out there) there still may be hope; here’s the story. read more…

Creating an audio only shop

Creating an audio only shop

Last summer after my initial “rediscovery” of audio, I found several forums that flamed my enthusiasm. In the course of postings on one such forum, I decided to start a thread involving opening an “Audio Only” store. The replies were quite fascinating, as many had spent some time thinking over what type of equipment/brands they would carry. A few common threads seem to carry throughout the serious postings, one being the need for additional income to cover the costs of competing against the big boxes.

With that introduction I give you my business plan for “Pure Audio”. read more…

Building a Stereo Headphone Amplifier – From a Kit

Building a Stereo Headphone Amplifier – From a Kit

Nearly all vintage pre-amps/integrated amps have headphone jacks. Unfortunately some of them don’t work, or stop working. Also unfortunately, some of these jacks are hard to get at, and some are directly mounted to the main PC board or one of its satellites (meaning you have to match its configuration in a catalog. Building a headphone amp from a kit is actually an easier “fix”. It is also known that some audiophiliacs favor separate headphone amps for reasons that may not be psychosomatic, but this amp, the Ramsey model #SHA1, isn’t audiophile class. I’ve been browsing an audiophile class catalog (from Acoustic Sounds Inc.) and didn’t notice anything electronic in there for around $30, which is what the SHA1 goes for. (If you haven’t seen this catalog, I recommend it; there are some amazing things in it – including some strange looking turntables and the prices are even more amazing.) This amp sounds decent supplying my Sennheiser 595 phones. There are a few caveats, but I’ll get to them later. read more…

Replacing damaged veneer (vinyl) on a “woody”

Replacing damaged veneer (vinyl) on a “woody”

A ‘woody’, at least in the jargon we use in this strange vintage audio hobby/compulsion/ affliction, is a piece of audio equipment either encased in a wood (or pseudo-wood) case or having wooden panels as part of the case. My Pioneer TX-7800 is of the latter persuasion, although the ‘veneer’ here is actually vinyl, and not heavy-duty vinyl either. Here’s the before picture: read more…

Re-capping a speaker crossover network

Re-capping a speaker crossover network

(‘Re-capping’ is jargon for ‘replacing the capacitors in’. Those of you who thought it meant ‘shooting the guy again’ need to realize that this is a civilized e-zine.)

An un-modded vintage speaker will perforce have vintage capacitors in its crossover network. These are usually (not always) electrolytic caps, which deteriorate with age (so has my bowling average). In extreme cases the cap has sprung a leak, but even if it hasn’t its value in microfarads has changed – changing the crossover ‘point’ that the engineer planned on, and thereby effecting the sound. That is the ‘why’ of this article.

DIY – By and for the Marginally Competent. This article, and any that may follow it, is not intended to educate experienced audio Do-ItYourselfers. If you are one of those, feel free to read on and send critical letters to the editor. (Just be aware that, for some editors, any feedback is good feedback.) The intent is to help make the use of vintage (i.e. affordable) equipment more practical for the ‘common man’. read more…

That “new-to-you-but-vintage” integrated amplifier – Getting it ready.

That “new-to-you-but-vintage” integrated amplifier – Getting it ready.

It’s setting there on your workbench, looking good. You don’t know anything about its history for sure, and it may not have been powered up for a long time. So… before you power it up, there are some things you ought to do: cleaning, preconditioning, adjusting things. I know, the temptation is great to fire it up – but if you do, there is a small but real possibility of seeing smoke.

This article, and any that may follow it, is not intended to educate experienced audio Do-It-Yourselfers. If you are one of those, feel free to read on and send critical letters to the editor. (Just be aware that for some editors, any feedback is good feedback.) The intent is to help make the use of vintage (i.e. affordable) equipment more practical for the ‘common man’. read more…

Page 2 of 212

WordPress.org

Copyright © 2000-2018 HighFidelityReview – Hi-Fi systems, DVD-Audio and SACD reviews - HQ Hi-Fi Review Theme by ThemeShift.com