diyAudio - Blog Entries
Go Back   Home > Forums > Blogs

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Old

3 way speaker

Posted 21st April 2010 at 12:48 AM by clemmtec

I want to build a speaker that has very stong
bass,and clean not the noise kind. what woofers or sub woofer would you recommend ?
diyAudio Member
Posted in Uncategorized
Views 1000 Comments 1 clemmtec is offline
Old

Research for My first Horn Speaker.

Posted 19th April 2010 at 08:57 PM by DougL
Updated 28th April 2010 at 06:44 PM by DougL

This is my foray into the dark side.
The only horn speakers I have ever heard was a K horn being driven with a Phase Linear 700.
Could not stay in the room.
Now I am curious if it can be better.

I have a 3 DCX2496 and 6 channels of amplification, so I will start with an active system.

My goal is to get the drivers close to 100db or higher efficiency.
I want to be able to experiment with low power amps.
I am also frugal, so I want to use low cost waveguide components.

Compression tweeter
Direct radiation mid
Woofer/Woofers.

JBL 2123 is my starting point Second hand only.

B&C 6MD38 99db $89
B&C 8PE21 98 db $100
B&C 10MD26 100 db $160
B&C 10HPL64 98 db $130

Here is an example speaker.
http://www.diyaudio.com/forums/multi...ml#post1653499

I will start a thread after...
diyAudio Member
Posted in My Projects
Views 1668 Comments 8 DougL is offline
Old

Projects, Projects, Projects..

Posted 16th April 2010 at 05:07 PM by kevinkr
Updated 16th April 2010 at 05:19 PM by kevinkr

Like most of us here I seem to have more projects than I can handle. Just added another one - I'm going to do a simple little 6BQ5/6V6/7C5 based SE amplifier for nostalgia. (My first tube amp as a teenager was a 6BQ5 SE)

I've just added to the stack by ordering a pair of 6V6/6BQ5 SE OPTs from Tony over at Twin Audio. The price with shipping was pretty hard to beat, and I figure that the effort they put into building their amplifiers probably is also reflected in the quality of the parts they use. This amplifier will be pretty simple, most likely using pentode mode with some cathode feedback, a single stage high mu triode driver, and some limited global feedback to get the output impedance down. Hopefully I can make enough power to drive the HCC with it. I could conceivably incorporate the baffle step correction into the input of this amplifier if it is dedicated to driving the HCCs. As a firm believer in the benefits of fixed bias the output stage will incorporate that....
kevinkr's Avatar
diyAudio Moderator
Posted in Uncategorized
Views 1439 Comments 1 kevinkr is offline
Old

After being freed of having a cast

Posted 15th April 2010 at 07:19 PM by Bas Horneman (Bas Horneman's diyAudio.com blog)
Updated 15th April 2010 at 09:44 PM by Bas Horneman

on my hand for the past 3 weeks. It (the cast) finally was removed today. So I was itching to go.

Here is the result:
Attached Thumbnails
Click image for larger version

Name:	spider2.jpg
Views:	1296
Size:	82.6 KB
ID:	145   Click image for larger version

Name:	subchassis.jpg
Views:	1297
Size:	183.6 KB
ID:	146   Click image for larger version

Name:	subchassis2.jpg
Views:	620
Size:	80.4 KB
ID:	147  
Bas Horneman's Avatar
diyAudio Moderator Emeritus
Posted in Building
Views 924 Comments 0 Bas Horneman is offline
Old

L C calculator

Posted 13th April 2010 at 01:08 PM by klewis
Updated 11th March 2011 at 02:44 PM by klewis

http://malzev.tripod.com/book/butter.htm

Inductance Calculatorhttp://www.consultrsr.com/resources/eis/induct5.htm

LRC calculator http://www.calctool.org/CALC/eng/ele...cs/RLC_circuit
klewis's Avatar
diyAudio Member
Posted in Uncategorized
Views 536 Comments 0 klewis is offline
Old

having fun with pic controller

Posted 8th April 2010 at 07:23 PM by klewis

http://www.diyaudio.com/forums/solid...ontroller.html
klewis's Avatar
diyAudio Member
Posted in Uncategorized
Views 502 Comments 0 klewis is offline
Old

Recommendations ~ Ultra high-end audio installer in the Portland, OR area

Posted 7th April 2010 at 06:35 PM by gsritchie
Updated 10th April 2010 at 12:18 AM by gsritchie (Change title)

I’ve finalized my research and am seeking a reputable Ultra high-end audio installer in the Portland, OR area for my vehicle. Someone who is extremely detailed oriented, taking extreme care to the interior, install and passionate in perfecting the ultimate balanced sound.

I fully comprehend the dynamics of the issues in producing a system over 1000w and will adjust the vehicle with a HO alternator, deep cycle battery and upgrade the “big 3”

Potential package:
·Fully lined with Dynamat
·Cardis or Pear interconnects and speaker wire
·Aluma Pro CAP
·McIntosh MX406 or Pioneer DEX-P99RS
·MacIntosh D/A converter
·Seas Lotus reference w/Scan Speak mid
· Sinfoni amps
diyAudio Member
Posted in Uncategorized
Views 611 Comments 0 gsritchie is offline
Old

spice models

Posted 6th April 2010 at 03:17 PM by klewis

A bunch of .lib files can be found on this site:
http://www.elektronikschule.de/~krausg/Spice_Model_CD/
http://www.elektronikschule.de/~krau...ls-collection/
http://www.elektronikschule.de/~krau...Philips_Spice/
http://www.elektronikschule.de/~krau...otorola/Spice/
http://www.elektronikschule.de/~krau...%20List/Zetex/
http://www.elektronikschule.de/~krau...0List/Siemens/
http://www.elektronikschule.de/~krau...ls-collection/

IRF models: http://www.irf.com/product-info/models/spice/spice.zip

Most vendors provide spice models for their products, it's just a matter of searching. With the time your library will grow.

The way to include a model in your simulation is as follows. Let's assume I downloaded a file...
klewis's Avatar
diyAudio Member
Posted in Uncategorized
Views 1252 Comments 0 klewis is offline
Old

hv shunt notes

Posted 6th April 2010 at 03:00 PM by klewis
Updated 19th November 2010 at 02:34 PM by klewis

updated schematic
http://www.diyaudio.com/forums/power...ml#post2084348

Lets see, for 20v use 1n4060 or 4061, for 24v 1n4062 and 36v 1n4066.

Saw the datasheets, nice Zeners. Thanks.

Here we go then. Not just any Zener, but 1N40XX Microsemi temperature compensated components, are to be preferred by shunt builders if they can get their hands on them. Noise concerns by possible wrong Zener choices addressed

v1.0 with LEDs LED's Green 2v

capacitors Panasonic TS-HA

transformer
They go around 62V after rectification in practice, like being 2X22V, still need a 10R resistor before cap, and they don't lose easily, very good regulation. If the 2X18V 80VA model goes 2X19V in reality, it would be best for about 53-54V and to avoid the resistor.

They're the R-Cores sold by audiophonics, The one pictured is from France,...
klewis's Avatar
diyAudio Member
Posted in Uncategorized
Views 422 Comments 0 klewis is offline
Old
Rating: 2 votes, 5.00 average.

Synergy "Active" Crossover

Posted 6th April 2010 at 12:38 PM by wintermute (Wintermutes Rantings)
Updated 5th January 2011 at 02:18 AM by wintermute (fixed a couple of typos, and added a small amount of clarification.)

Following on from YARPS I thought I would post the design I have been working on for my active crossover (which is in fact is what the YARPS power supply was designed to drive).

So here I present the Synergy "Active" Crossover. Please note I have only simmed it at this stage (and when I started I knew nothing about active filter design) so there is no guarantee it will work.

Why have I put "Active" in quotes? Because whilst this filter uses active components, for all intents and purposes it behaves like a passive filter. It basically emulates either an LC or a CL passive 2nd order filter.

Why the name Synergy? Well I though it was the best word to describe the differing technologies working together to give the end result

The design goal is to have an active crossover that for all intents and purposes is transparent. That is it does nothing other than split the frequencies at the desired crossover point....
Attached Thumbnails
Click image for larger version

Name:	synergy.png
Views:	5776
Size:	19.8 KB
ID:	142   Click image for larger version

Name:	synergy_freq_resp.png
Views:	2448
Size:	18.5 KB
ID:	143  
Attached Files
File Type: zip synergy.zip (9.6 KB, 573 views)
wintermute's Avatar
diyAudio Moderator
Views 8360 Comments 12 wintermute is offline
Hide this!Advertise here!

New To Site? Need Help?

All times are GMT. The time now is 07:23 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2