Celestion SL6si Vintage Bookshelf Speakers

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General:
For me, it's hard to believe these are already considered vintage speakers!

Feels like only yesterday Stereophile reviewed these babies, which I had no way of affording at the time while at college.

Tested in our lab and also our listening room, and working brilliantly. These will easily rival many modern speakers of this size, but without the harshness or edge typical of today's speakers.

I had the pleasure of long term testing these on our test rig, and at the end I actually wasn't sure if I wanted to list these for sale. They're that good.

The wood veneer on this pair has aged to a deep honey color and look fantastic in person. They will also come with their original speaker grills.

We'll ship these speakers including their stands anywhere in the lower 48 US Staes for a flat $99. If you're outside of this area please contact us for a quote. Local courier is also available within 50 miles from our zip 07452 for a fee.

SkyFi Cosmetic Notes:
Some minor blemishes are present on all surfaces and some corners. This includes marks, light scratches, and dents, But they still look fine.

Specs:
Design:
Sealed Box

Internal Volume:
12 litres / 0.4 cubic feet

Tweeter:
1.25″ aluminum dome

Woofer:
6.5″ Kobex PVC cone

Crossover:
2.8 kHz third order high pass, second order low pass

Low Frequency Performance:
-3dB at 75Hz -6dB at 60Hz (free space)

Impedance
8 ohms

Sensitivity:
1 watt at 1 metre produces 84 dB SPL

Recommended Amplifier Power:
25-120 Watts

Dimensions - Each Speaker:
376mm (14.75") H x 200mm (7.75") W x 268mm (10.5") D

Weight - Each Speaker:
8.4kg (18.5 lbs)

Ownership:
Single Owner

Connections:
Speaker binding posts

General Sound:
Smooth, uncolored, undistorted natural and clean

Cosmetic Condition:
7/10 = Good. One or two minor scratches. Well Maintained. See our detailed rating description here.

Working Condition:
Working perfectly and tested in our lab and listening room.

Included:
Just the two speakers as pictured in this listing with both of their speaker grills

Packing:
Will be packed using our highly developed in-house process and custom packing materials.Recommended Cables:
Kimber Kable - Speaker Cables - Good

Kimber Kable - Speaker Cables - Better

Testing Process:
Our speaker evaluation process starts with a visual inspection of all drivers. We are looking for damaged or deteriorating woofer surrounds, dented tweeter domes, and cone damage. We also inspect the speaker connection points for loose or broken connectors.

After the initial visual inspection we connect the speakers to a reference amplifier with our preferred test tracks. With the speakers placed with proper distance we listen to each driver to make sure that they are producing the intended frequencies with no signs of distortion or rattle.

During listening tests with test tracks we check for proper stereo imaging and bass response at various listening levels. If there are any audible signs of issues, the speakers are taken to the bench where we perform a frequency sweep to isolate the issue so that it can be resolved by component repair or replacement.

Our subwoofer evaluation process starts with a visual inspection of all drivers. We are looking for damaged or deteriorating woofer surrounds, cone damage, or rubbing voice coils. We also inspect the input connections for damage.

After the initial visual inspection we connect the sub at our bench and perform a sine wave sweep from about 200 Hz down to around 10 Hz. During this sweep we are listening for excessive rattle or other signs of improper function.

If the sweep passes we then increase the input level to evaluate how the woofer performs at high output levels. If the woofer has built-in crossover adjustments or multiple connection options these features are tested at this time.

We complete the subwoofer evaluation by feeding the unit with an audio signal in conjunction with our house music system to see how it responds to low frequency content in real world conditions while paired with a full range system.