HiFi Heaven

I'm sorry, they are long gone. I have 1" Tangerine ferrite ALTEC 902-8B & 908-8B driver pairs, and a single Alnico 16" 416-8A.

Some guys would rather spend thousands on harmonic distortion generators, phase shifters, band pass attenuators AKA transformers! Same guys that eschew tone controls because all of their recordings are perfect and they love listening to the bad engineering. Same guys have perfect loudspeakers in acoustically perfect rooms so no is EQ required.

Polyfill from a cheap pillow works too.

When I heard RF7's I was impressed by the fast articulation, like JBL 4312's, that quickly became irritating and then annoying. Voiced to sell in a showroom I think, not to enjoy for decades in a living room. I'll be keeping my Forte' II's and Quartets, thanks.

Why are you folks so fixated on a wimpy mundane relic? HK outsourced production to Funai - the beginning of the end for HK. Contemporary Pioneer & Kenwoods blow them away.

Welcome to Dave Seitz! I've known this character for 30+ years, sold him those CTS 18W54C "Loose Goose" woofers way back when! They have a very floppy treated cloth surround, extremely low free-air resonance around 20 Hz (!) Maybe someone here has more info on how to best use these in a K-horn type enclosure?

Looks simple - just reheat the solder under the board while you stuff the flying L3 lead back where it belongs. Grip the wire with a hemostat or needle nose pliers w/rubber bands to avoud blisters on your fingers! Then reflow the PC board with fresh solder.

Grace Slick?

Fabulous classic! If all the switches & controls are cleaned & quiet, and the autocorrelator & peak unlimiter work OK, the 4000 is a tour de force of features and performance, including an SQ matrix surround decoder which musically blows away any Dolby processing, IMHO.

Hi guys - I use a Tenma 72-8155 LCR meter ($58) which measures at 1 KHz. Large display for us geezers! Works for me. Newark ships for $10. https://www.newark.com/tenma/72-8155/lcr-meter-with-hfe-transistor/dp/45M5528#anchorTechnicalDOCS

OBjective vs SUBjective! Has anybody bothered to WEIGH their Crimson 275? When I was at Sound of Music (1970's) we sold AMPLIFIERS by the POUND!

Your tweeter diaphragm looks like my KG4 original phenolics.

Hello BlakeMN, welcome to the Klipsch Forums! I'm in Edina, happy to help, just sent you a PM with details. Cheers and good luck with your sale.

I have an empty ALTEC 9849-8D oak veneer single cabinet in Edina, MN 55424 for $25: https://minneapolis.craigslist.org/hnp/ele/d/minneapolis-vintage-1974-altec-oak/7357338675.html

Hi guys - I'm a huge fan of the vintage FM tuners & receivers. I sold them at retail 1966 > 1974 in Minneapolis, all the big brands. Alignment is the magic that restores classic 1970's analog tuner performance! Like 50 year old sportscars, they need a tune-up. Major improvements in sensititivity & selectivity, less noise & distortion. I get 42+ stations on a 31" wire antenna when I'm done! EZ enough to DIY - most mfr's Service Manuals have alignment charts - you'll need tiny hex & nylon screwdrivers and some time. Let me know if I can help - PM me with your Tuner/Receiver model # - and your name & phone # - I talk much faster than I type!

DLK and Omega were trade names of Don Kliewer who built them as house-brand speakers for Schaak Electronics in Mpls/St.Paul MN. Midwest Speaker Repair in Roseville, MN can help you with these - talk to the owner Joe at 651-645-7174.

Highly recommended - latest model - sound quality blew me away - 3D soundstage on old Rock CD's! $200 w/ remote control! https://www.adj.com/ucd-100-mkiii

Here's one in Minnesota, NO affiliation. https://minneapolis.craigslist.org/wsh/ele/d/stillwater-marantz-2230-professionally/7335291217.html I sold Marantz new at Sound of Music in Minneapolis 1970-74 - 2230's & 2270's flew out the door!

Maybe it's just the cognac...

Damping factor of the amplifier (speaker load impedance/amplifier impedance) diminishes as the speaker wire resistance increases. ADCOM 400 DF = 0.02Ω internal impedance. Add your speaker wire resistance and recalulate - you will be amazed how most systems have meager 40-50 DF's even with #16 or #14 speaker wiring! Do the math on your system! Look up the Ω/foot on your wire gauge, multiply by TWICE the cable length to calculate the round-trip electrical resistance, you will see! #12 silver-plated FULTON is magic!

Flip the wires from the amplifier to the crossover inputs on both speakers. You can wire SPDT switches ($5 each) to do this quickly to A/B compare.

Reverse the input phase to BOTH speakers - this will invert the ABSOLUTE PHASE of your system. You may find the sound is closer to what you remember.

Many Klipsch 8Ω-labeled systems use 4Ω woofers to boost bass output measurements by +3dB. OK on horn-loaded systems where the acoustical loading increases the AC impedance at the amplifier. Questionable game of specsmanship when the marketing guys, not the engineers, write the spec sheets. Early KG4's were labeled 4Ω, quickly changed to 6Ω. Two 8Ω woofers in parallel are 4Ω, not 6Ω or 8Ω, kids! My Quartets, Forte II's, and Chorus II's - all sold as 8Ω speakers - have 4Ω woofers to generate that big BASS! Transistor amps deliver twice the current at 4Ω, tube amps limp along with transformer limitations & distortion. Measure DCR at the speaker terminals to see what you have for a load - the AC impedance won't be much higher.