Hi ,
This is my first post on the forum.
I am about to by a pair of NOS : Altec Lansing 755E´s
I have some questions regarding these drivers:
I am planning on building a DIY version of the Altec 618 cabinet—very the same as first attached picture.
THE 618 CABINET
1. Pine plywood is the correct material to use? and not birch….
5/8inch ( 15mm ) on front baffle.
1/2inch ( 9mm ) on all other sides of the cabinet.
“ [* Edit: Yep same as Altec " The thickness of the front baffle is a sound board thickness all 15mm, otherwise it is 9mm It has become the preferred structure."-- from Stereo Sound WSI 618C writeup] “ - from junkyardjukebox
2. How much stuffing / fill do I need / and what kind of material should I use?
AMPLIFER MATCHING
1. I have a Gainclone LM3875 kit—some say it has an equal sound signature as 300B SET amplifiers. With a 92dB sensitivity on the 755E - any inputs?
2. Other well known amp alternatives for the 755E?
SPEAKER STANDS / HEIGHT
1. How high should I rase the 618 cabinet?
TWEETER ( if even needed )
I have a pair of DECCA Super Tweeters ( ribbon ) :
Frequency range: 7KHz-30KHz
Crossover: 7KHz
Efficiency : 88db at 4W at 1meter
1. Is this a Plug & Play?
LAST QUESTION:
Difference in Resistance : a 0.3ohm difference around 6.8ohm on these NOS drivers— this should not be anything to worry about?
PS:
How does these drivers sound? very interested to hear your opinion on these drivers.
REFERANCES
1. Vintage pine 618 cabinet: Attached
2. JE LABS 618 drawing: Attached
3. Regarding thickness of the 618 cabinet: http://junkyardjukebox.blogspot.com/...nside-box.html
4. Spec sheet The Decca SUPER TWEETER: Attached
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