Dayton APA 150 mods? - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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
Reply
 
Thread Tools Search this Thread
Old 21st February 2008, 07:18 PM   #1
sbrtoy is offline sbrtoy  United States
diyAudio Member
 
sbrtoy's Avatar
 
Join Date: Apr 2003
Location: colorado
Default Dayton APA 150 mods?

Anyone experiment with these little guys?

http://www.partsexpress.com/pe/showd...number=300-812

Can be had for almost nothing, just wondering if anyone has tried one out and has impressions of the sound and build quality...

If there is any half-decent parts in it is seems like a great modding candidate, and with the level control you could use it as a nice iPod system.

Any thoughts?
  Reply With Quote
Old 22nd February 2008, 03:12 AM   #2
diyAudio Member
 
Stormrider's Avatar
 
Join Date: Apr 2006
Location: Connecticut
Blog Entries: 2
Send a message via AIM to Stormrider Send a message via MSN to Stormrider
Other than that its made by the same company that makes the small Emotiva amp (the one that looks exactly the same)... I haven't seen anything about this amp.

If anyone has one, post pics of the insides.
__________________
AJ
  Reply With Quote
Old 5th December 2009, 01:22 AM   #3
gni is offline gni  United States
diyAudio Member
 
gni's Avatar
 
Join Date: Sep 2006
I've been looking at this amp for possible mods
but I am stumped at the bridged configuration.

First there is a switch; but then you are to connect
the (+) left output to the (+) speaker and then the
(-) right output to the (-) speaker.

That just seems a little odd. . . .The right channel
must always be driven out of phase and the switch
just puts an input into both channels. Therefore the
(-) left output and the (+) right output are really the
ground reference.

I've never seen an amplifier labeled in this manner
but it would simplify some parts of the circuit design.

Anybody have further insight?
  Reply With Quote
Old 6th December 2009, 12:19 AM   #4
djk is offline djk
diyAudio Member
 
djk's Avatar
 
Join Date: Feb 2001
Location: USA
Carver made several amps with one channel inverting and the speaker posts as you described. It's OK for bridging, but not the best from a stereo standpoint. Carver later discontinued this practice.

Rockford Fosgate also did this on most of their amplifiers too.
__________________
Candidates for the Darwin Award should not read this author.
  Reply With Quote
Old 6th December 2009, 12:29 AM   #5
diyAudio Member
 
benchtester's Avatar
 
Join Date: Apr 2007
Location: Oakland, Calif.
Quote:
Originally Posted by sbrtoy View Post
Anyone experiment with these little guys?

Parts-Express.com: Dayton APA150 150W Power Amplifier | Power amp subwoofer amp class AB amp stereo amp APA150 mono amp home theater amp sub amp low pass home theater audiophile 150 watt 150W gifts1117

Can be had for almost nothing, just wondering if anyone has tried one out and has impressions of the sound and build quality...

If there is any half-decent parts in it is seems like a great modding candidate, and with the level control you could use it as a nice iPod system.

Any thoughts?
I have one, but I am out-of-town, so no pictures for a while.

It does have a toroidal transformer, but only a square tube for a heat sink. Both the sound quality and part quality is okay but not real inspiring. I am thinking of one day upgrading the input amp to see if that helps. Many people have had problems with the volume pot, so that should be upgraded, or replaced by a stepped attenuator.
  Reply With Quote
Old 6th December 2009, 11:39 PM   #6
gni is offline gni  United States
diyAudio Member
 
gni's Avatar
 
Join Date: Sep 2006
That is good info about the volume pot. . . easily fixed.

Some inside pics will be nice. . . .knowing what's inside
before buying is a good start to mods. When you buy
a car, you always look at the engine also; I feel the same
way about equipment purchases. . . .
  Reply With Quote
Old 5th August 2013, 03:40 AM   #7
Zoodle is offline Zoodle  Australia
diyAudio Member
 
Join Date: Jun 2009
Anyone have a schematic? I want to remove the input board but it contains the bridge mode selector and the auto on sensor. Without the board, the amp defaults to standby. No idea about bridge mode. Anyone played with this amp, or have the circuit?
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Peerless XXLS vs. Dayton Reference vs. Dayton Titanic MKIII ? wigginjs Multi-Way 6 3rd March 2008 08:56 PM
Vifa/Dayton/Dayton... First speaker for me, finally! alexcd Multi-Way 6 29th November 2006 10:54 PM
Dayton DA aluminum cone woofer + Dayton DC28f tweeter springy101 Multi-Way 7 15th March 2006 05:22 PM
Dayton 6" reference and dayton silk dome tweeter combo project...input? nerd of nerds Multi-Way 4 2nd December 2004 05:36 PM
Dayton 5.25" AL vs. Dayton 5.25 paper for Lo-Mid opinions? netgeek Multi-Way 6 14th May 2004 01:14 PM


New To Site? Need Help?

All times are GMT. The time now is 03:49 AM.


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