Menu
Forum
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Car Audio Discussion
General Car Audio
Car Audio Build Logs
Car Audio Equipment
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Help
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Car Audio Classifieds
Car Audio Wanted
Classifieds Member Feedback
Gallery
New media
New comments
Search media
SHOP
Shop Head Units
Shop Amplifiers
Shop Speakers
Shop Subwoofers
Shop eBay Car Audio
Log in / Join
Test
Forum
Search
Search titles only
Search titles only
Log in / Join
Search
Search titles only
Search titles only
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Menu
Reply to thread
Forum
Car Audio Discussion
General Car Audio
Make sense of this amp test.
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="Shroomic" data-source="post: 8208984" data-attributes="member: 647324"><p>"As a semi-poll, I'd like to see those on this board whip out their multimeters and take a look at the DC that is being presented to the speakers. This means..</p><p></p><p>1. Speakers disconnected (or connect the meter to the 'B' speakers and set the front panel speaker control accordingly)</p><p></p><p>2. Input set to an unusued position (not Phono)</p><p></p><p>3. Volume control at minimum.</p><p></p><p>4. Balance in center</p><p></p><p>5. Tone controls either defeated or set to mid position</p><p></p><p>6. Set your meter to read DC, and set to a low scale (300mV scale is common) Connect directly to the Pos and Neg of the speaker terminals</p><p></p><p>7. Give the amp 10 minutes to settle. Report back...I'd like to see how healthy all these old amps are."</p><p></p><p>To me it sounds like he wants you to unplug your sub, turn down the mids and highs. Leave the volume on 1(Maybe 0 to check for distortion constantly present in the amp?) with all eq and bass boost off, fader centered. Leave meter hooked up in the speaker terminals on amp and watch the voltage.</p><p></p><p>Step 6 is more knowing how to use and read a DMM, Im sure theres a guide on here somewhere if you need it.</p></blockquote><p></p>
[QUOTE="Shroomic, post: 8208984, member: 647324"] "As a semi-poll, I'd like to see those on this board whip out their multimeters and take a look at the DC that is being presented to the speakers. This means.. 1. Speakers disconnected (or connect the meter to the 'B' speakers and set the front panel speaker control accordingly) 2. Input set to an unusued position (not Phono) 3. Volume control at minimum. 4. Balance in center 5. Tone controls either defeated or set to mid position 6. Set your meter to read DC, and set to a low scale (300mV scale is common) Connect directly to the Pos and Neg of the speaker terminals 7. Give the amp 10 minutes to settle. Report back...I'd like to see how healthy all these old amps are." To me it sounds like he wants you to unplug your sub, turn down the mids and highs. Leave the volume on 1(Maybe 0 to check for distortion constantly present in the amp?) with all eq and bass boost off, fader centered. Leave meter hooked up in the speaker terminals on amp and watch the voltage. Step 6 is more knowing how to use and read a DMM, Im sure theres a guide on here somewhere if you need it. [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Discussion
General Car Audio
Make sense of this amp test.
Top
Menu
Home
Refresh