Kef 104/2 questions

Hey all,

I've got the opportunity to acquire a pair of Kef 104/2's for a very good price.

I will listen to them tomorrow, and I'm wondering for those of you with experience with these speakers, what things should I look out for during the audition?

Some concerns:

1. Ferrofluid tweeters may need to be replaced as the fluid is now gel after 20 years.

2. Woofer surrounds and crossover. How do I check the crossover?

The speakers were made in the late '80s.

My receiver popped and no longer functions

Forums

I tried hooking my stereo receiver (about 15 years old but working great) to one 6" sub speaker. I connected the positives of both speaker wire outs and both of the negivatives of the speakers out and connected the positives to one side of the speaker and the negitives to the other side of the speaker. It seamed to work, but as I turned up the volume I heard a pop and then my receiver died and now it won't power on.

So, what could this be. I'd like to know so I can buy a replacement part for it cause I really like it.

Boulder 500AE power amplifier Steven Stone, November 1997

Boulder 500AE power amplifier Steven Stone, November 1997

To high-end audiophiles, the Boulder 500 amplifier and its less expensive derivative, the 500AE (Audiophile Edition), would not seem to be "high-end" designs. They are designed around op-amps (felt by many to be generally poor-sounding), they have scads of negative feedback (which is perhaps why op-amps sound bad), and they have only a moderately hefty power supply. Why, then, is <I>Stereophile</I> publishing a review of an op-amp&ndash;based power amplifier? Read on...

Boulder Amplifiers
3235 Prairie Avenue
Boulder, CO 80301
www.boulderamp.com

Boulder 500AE power amplifier Lewis Lipnick June 1992

Boulder 500AE power amplifier Lewis Lipnick June 1992

To high-end audiophiles, the Boulder 500 amplifier and its less expensive derivative, the 500AE (Audiophile Edition), would not seem to be "high-end" designs. They are designed around op-amps (felt by many to be generally poor-sounding), they have scads of negative feedback (which is perhaps why op-amps sound bad), and they have only a moderately hefty power supply. Why, then, is Stereophile publishing a review of an op-amp–based power amplifier? Read on...
Boulder Amplifiers
3235 Prairie Avenue
Boulder, CO 80301
www.boulderamp.com

Boulder 500AE power amplifier Robert Harley April 1992

Boulder 500AE power amplifier Robert Harley April 1992

To high-end audiophiles, the Boulder 500 amplifier and its less expensive derivative, the 500AE (Audiophile Edition), would not seem to be "high-end" designs. They are designed around op-amps (felt by many to be generally poor-sounding), they have scads of negative feedback (which is perhaps why op-amps sound bad), and they have only a moderately hefty power supply. Why, then, is <I>Stereophile</I> publishing a review of an op-amp&ndash;based power amplifier? Read on...

Boulder Amplifiers
3235 Prairie Avenue
Boulder, CO 80301
www.boulderamp.com

Boulder 500AE power amplifier Measurements

Boulder 500AE power amplifier Measurements

To high-end audiophiles, the Boulder 500 amplifier and its less expensive derivative, the 500AE (Audiophile Edition), would not seem to be "high-end" designs. They are designed around op-amps (felt by many to be generally poor-sounding), they have scads of negative feedback (which is perhaps why op-amps sound bad), and they have only a moderately hefty power supply. Why, then, is <I>Stereophile</I> publishing a review of an op-amp&ndash;based power amplifier? Read on...

Boulder Amplifiers
3235 Prairie Avenue
Boulder, CO 80301
www.boulderamp.com

Boulder 500AE power amplifier Complementary Symmetry

Boulder 500AE power amplifier Complementary Symmetry

To high-end audiophiles, the Boulder 500 amplifier and its less expensive derivative, the 500AE (Audiophile Edition), would not seem to be "high-end" designs. They are designed around op-amps (felt by many to be generally poor-sounding), they have scads of negative feedback (which is perhaps why op-amps sound bad), and they have only a moderately hefty power supply. Why, then, is <I>Stereophile</I> publishing a review of an op-amp&ndash;based power amplifier? Read on...

Boulder Amplifiers
3235 Prairie Avenue
Boulder, CO 80301
www.boulderamp.com

Boulder 500AE power amplifier Transient Intermodulation Distortion

Boulder 500AE power amplifier Transient Intermodulation Distortion

To high-end audiophiles, the Boulder 500 amplifier and its less expensive derivative, the 500AE (Audiophile Edition), would not seem to be "high-end" designs. They are designed around op-amps (felt by many to be generally poor-sounding), they have scads of negative feedback (which is perhaps why op-amps sound bad), and they have only a moderately hefty power supply. Why, then, is <I>Stereophile</I> publishing a review of an op-amp&ndash;based power amplifier? Read on...

Boulder Amplifiers
3235 Prairie Avenue
Boulder, CO 80301
www.boulderamp.com

Boulder 500AE power amplifier Specifications

Boulder 500AE power amplifier Specifications

To high-end audiophiles, the Boulder 500 amplifier and its less expensive derivative, the 500AE (Audiophile Edition), would not seem to be "high-end" designs. They are designed around op-amps (felt by many to be generally poor-sounding), they have scads of negative feedback (which is perhaps why op-amps sound bad), and they have only a moderately hefty power supply. Why, then, is <I>Stereophile</I> publishing a review of an op-amp&ndash;based power amplifier? Read on...

Boulder Amplifiers
3235 Prairie Avenue
Boulder, CO 80301
www.boulderamp.com
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