zumbini

Howdy SDMF and welcome to the forum. Glad you found us. Hope you enjoy your stay.

In that case crimp some spade lugs on the bare wire ends and you're golden.

I don't recall what style binding posts are on the 901s but it's pretty easy to make adapters. Here's a set of binding post adaptors that RodH made to fit the spring clips on an M-400:

You can tell whether a man is clever by his answers. You can tell whether a man is wise by his questions. Naguib Mahfouz (Egyptian Novelist, 1911-2006)

Here's the last time I saw them listed ==> Carver AL-III Speakers (ebay BIN for $599.99)

Great solution Kevin. If you can't beat 'em, join 'em!

Nice pussy. This one looks comfy too.

Congrats on the new (to you) toy vinylnut. You gotta love those big meters! BTW - You can upload photos as large as 12MB if you use the image editor. Just click the insert image icon on the toolbar at the top of the "Post a reply box" (4th icon from right).

Howdy vinylnut and welcome to the forum. Glad you hopped on board the Carver train. ENJOY THE RIDE!

Congratulations Steve. May you find the wisdom of Solomon and the patience of Job.

Starting in the late 70's I built lots of simple, stackable plywood boxes for record and CD storage. The CD boxes (there are 10 on top in the photo) are 13" wide x 11 1/2" tall and hold about 60 discs each. The record boxes (there are 6 on the bottom) are 25 1/2" wide x 14 1/2" tall and hold about 200 LPs each. A few years (and 2,000 discs) later I replaced the CD boxes with these upright racks based on a Tree Dimensions design. I also moved the LP boxes into an adjoining room (there are 10 now) and only keep a few 100 of my favorite LPs "on call". In the late 80's I inherited a huge collection of classic post-war jazz albums from my boss and mentor Ollie "OJ" Berger. They are stored in the same room as the rest of my LP collection, in a plywood rack that Ollie and I built in the late 60's. TOO MUCH IS NEVER ENOUGH!

On average you can store 6 single sleeve albums on one linear inch of shelf. For double albums (or singles with bi-fold sleeves) it's 3 1/2 per linear inch.

That 8,000 horsepower number cited for a Top Fuel dragster is about 20 years old. It's also an estimate since there are no automotive dynos capable of measuring that high. Based on fuel consumption and math today's engines make well in excess of 10,000 HP.

I don't know much about LWE speakers but Louis W. Erath was pretty well known. (He died in 2008 at 91.) Here are some details about the man and his creations: LWE loudspeakers were an early (1965-73) line of compact, motional feedback loudspeakers designed by a geophysical engineer named Louis W. Erath of Houston TX. Most LWE loudspeakers employed a back-EMF-based negative feedback network which dynamically enhanced bass and transient response enabling over-sized 15" woofers in a small cabinet to behave as if they were in a more suitable, larger enclosure. The flagship model, the "LWE-I" was one of the first compact "super-speakers" with extended bass response; possibly the very first loudspeaker using motional feedback to make it into production. It received rave reviews from audio magazines (Audio 11-68, Stereo Review 9-70) for having achieved a near flat frequency response all the way from a low 22hz up to 20khz which, at the time, was unheard of for a speaker of such a small size (25" H, 17" W, 12" D). First Manufactured and sold by Louis himself (1965-68), the LWE brand and technology was later licensed to Acoustron Corp (1969-73), a manufacturer of college language lab systems. Acoustron went out of business (1973) after suffering financial losses in the language lab end of their business. Acoustron licensed 140 LWE dealers nationwide, many of them McIntosh? dealers as their amplifiers worked well with the LWE circuitry. Soon after Acoustron's demise, many LWE dealers closed out their remaining stock at a discount, some telling their customers that there was "a fire at the Acoustron plant" which was untrue - there was never a fire. The LWE negative feedback network electronically models the attributes of an "ideal speaker" ; this network is connected in series with the actual speaker and the voltage characteristics between the two are compared in real time. Any difference between the two is sent back to the amplifier as an inverse corrective voltage and fed into the input of the amplifiers designated negative feedback output stage; thereby creating an immediate, dynamic voltage correction for the real speaker at a specified frequency. The negative feedback network incorporated an state-of-the-art transformer for the era: a toroid-wound over powdered-permalloy core that was previously used only by Bell Telephone in their loading coils and in certain military electronics. The feedback network also used a photo resistor and light bulb to attenuate the amount of bass boost (negative feedback) at higher volume levels. Vintage LWE speakers are characterized by their near exclusive use of CTS (Chicago Telephone Supply) drivers with Electro-Voice T-35 tweeters (used in some models), 3/4" plywood cabinets with walnut or birch veneer, and 3/4" MDF baffles and backs, The first LWE-Is were sold with a companion solid-state stereo amplifier that mounted in a compartment on the back of either speaker, but this was quickly abandoned because many japanese-made all-in-one receivers were starting to flood the market; therefore a "clip-kit" solution was developed so LWE dealers would have a library of diagrams of how to connect the LWE negative feedback network to these systems. The demise of Acoustron combined with the difficulties in marketing and supporting a loudspeaker that needed a modified amplifier along with Louis' busy career in geophysical instrumentation pretty much ended the LWE loudspeaker. CM Labs briefly resurrected the LWE technology for their CM15 Servosound Feedback Speaker System in 1974, going so far as to modify their amplifiers (CM911) to include 6-pin cinch-jones connectors so their feedback speakers (or LWE speakers) could plug right in. Louis W. Erath Continues to design and build loudspeakers and is presently (01-2007) marketing an updated motional feedback loudspeaker system called the "Trout". Louis turns 90 this year. (EDIT: He died in 2008 at age 91.) Erath loudspeaker models: LWE-I 25" x 17" x 12" Speaker Complement One 15" Woofer One 6" Mid-Range One 5" Horn-Tweeter Nominal Impedance 4 OHMS Frequency Response 22 - 20.000 Hz (± 5dB) Power Handling Ability 50 Watts (Program Material) Sound Pressure Level 96 dB/per watt @ 1m Room gain control for adjusting negative feedback Mid and High level controls. Phase control for 0 -180 degrees on some models. 3/4 inch plywood cabinet with walnut or birch veneer. 3/4 inch MDF baffle, back and amplifier compartment. The LWE-I was one of the first compact super-speakers with extended bass response; possibly the very first loudspeaker using motional feedback to make it into production. It received rave reviews from audio magazines (Audio 11-68, Stereo Review 9-70) for having achieved a near flat frequency response all the way from a low 22hz up to 20khz which, at the time, was unheard of for a speaker of such a small size (25" H, 17" W, 12" D). Some early models (pre-Acoustron) have a recessed compartment on the back of the speaker with two t-nuts on either side that hold a LWE stereo amplifier inside, suspended in a rack-mount fashion. Amplifier compartment inside dimensions: 9-5/8 T x 15-3/8 W x 3-1/2 D measured from opening: 8-3/4 T x 13-3/4 W x 4 D. LWE-I Compartment Amplifiers: Model 274 - 60 watt, solid-state, stereo amplifier aluminum rack-mount-style housing for mounting inside rear compartment in early LWE-I loudspeakers. With two two female 6-pin cinch-jones output connectors for connecting LWE speakers, two screw-jacks for extra speakers, two female RCA input jacks, three 3 amp fuse holders and a 1/8” jack for adjusting idling current. Model 288 - same as above but with 80-100 watt power output, added external heat-sinks, larger transformer, directly coupled design, modern components including silicon transistors. Reviews of Erath LWE-1 on audioreview [Winebrenner's excellent review] LWE-II 34" x 24" x 16" Speaker Complement Two 15" Woofers Two 6" Mid-Range One 5" Horn Tweeter Nominal Impedance 4 or 8 OHMS Frequency Response 20 - 20,000 Hz (± 5dB) Power Handling Ability 100 Watts (Program Material) Sound Pressure Level 110 dB/per watt @ 1m Room gain control for adjusting negative feedback Mid and High level controls. LWE-III 22 1/2" x 15" x 9 1/2" Speaker Complement One 12" Woofer One 6" Mid-Range One 3 1/2" Tweeter Nominal Impedance 4 OHMS Frequency Response 25 - 17,000 Hz (± 5dB) Power Handling Ability 40 Watts (Program Material) Sound Pressure Level 93 dB/per watt @ 1m Room gain control for adjusting negative feedback Mid and High level controls. LWE-IV 48 1/2"x 36 1/2" x 20" Speaker Complement Four 15" Woofers Four 8" Mid-Range Four 6" Mid-Range Two 5" Horn Tweeters Nominal Impedance 4 OHMS Frequency Response 16 - 20,000 Hz (±5dB) Power Handling Ability 200 Watts (Program Material) Sound Pressure Level 120 dB/per watt @ 1m Room gain control for adjusting negative feedback Low-Mid, High-Mid and High level controls. Option for bi-amplification: Phase/Bi-Amp Control: -0- -180degrees- -Bi-Amp- Extra 4-pin cinch-jones plug for Bi-Amp option: 20hz-150hz LWE-VI 19" x 10" x 9" Speaker Complement One 8" Woofer One 3 1/2" Tweeter Nominal Impedance 8 OHMS Frequency Response 29 - 15,000 Hz (± 5dB) Power Handling Ability 25 Watts (Program Material) High level control - 3 positions LWE-VII 22 1/2" x 15" x 9 1/2" Speaker Complement One 10" Woofer One 3 1/2" Tweeter Nominal Impedance 4 OHMS Frequency Response 28 - 18.000 Hz (± 5dB) Power Handling Ability 35 Watts (Program Material) Room gain control for adjusting negative feedback High level control. LWE-VIII 90" x 49 1/2" x 23" Speaker Complement Eight 15" Woofers Eight 8" Mid-Range Eight 6" Mid-Range Three 5" Horn Tweeters Nominal Impedance 4 OHMS Frequency Response 16 — 20,000 Hz (±5dB) Power Handling Ability 400 Watts (Program Material) Sound Pressure Level 113(?) dB/per watt @ 1m Room gain control for adjusting negative feedback Other controls? Sits on four rolling casters. The Largest LWE speaker ever produced. Only four units made, all for Dr. John Hill of Houston, TX. After his murder, all four speakers were sold to Home Entertainment Inc. audio store in Houston. FOLKSPEAKER 31" x 23" x 15" Speaker Complement One 15" Woofer Two 4" Mid-Range Two 3 1/2" Tweeter Nominal Impedance 4 OHMS Frequency Response ? Hz (± 5dB) Power Handling Ability ? Watts (Program Material) Sound Pressure Level ? dB/per watt @ 1m An inexpensive loudspeaker Erath developed after Acoustron went out of business, but discontinued after lawyers from a certain german car company told him to stop using the name. No negative feedback network on this one. A Yahoo users group of LWE users sharing information:[LWE Users Group on Yahoo]

Congrats Harvanator. Attaching your photo is one way to do it . You can also embed photos using the Insert Image icon in the "Post a reply" window. The advantage is you get a larger image: plus you have the ability to resize it like this. or this: Here's a screen capture that shows the location of the Insert Image icon:

There is a pictorial how to guide for inserting media in the Help topic HERE

Howdy Harvanator and welcome to the forum. Glad you found us. Please tell us about your audio gear, listening habits and taste in music. (Photos are ALWAYS appreciated!)

On the plus side it prevents mischievous people from sticking sharp objects through the cones. Those 4" ports will be pretty inviting too so I'll probably cover them with fine mesh chicken wire. (Might help to prevent those same folks from using them as trash receptacles.)

Glad you managed to ID them Matt. Look forward to see how you put them to use. As for my sub project, it's on the back burner, probably until sometime in the fall. I have all the parts ready to go. Just need my son to make some time in his busy schedule. Meanwhile I hooked up the Black Widows and gave them a ride to get a "feel" for them. They are certainly capable of moving some air!

I'll hazard a guess that your stamped frame was for home stereo and the cast frame for musical instrument/PA applications.

Is this more like what you think it should look like?

Sorry to hear that Robert. I know what a pain that can be. I recently spent a week immunizing and then reformatting my PC only to have the 1 year old HD fail. Thankfully I had done a full backup to my son's 2 TB Go-Flex external drive just prior to reformatting.

I can imagine what you are going through Sanford. I hate to be away from my system for more than a few hours. Congrats on your new (to you) acquisition too. ENJOY!

That ribbon looks identical to Dayton Audio's PT2C-8 Planar Tweeter

Congrats on your new acquisition!