News

Seas FA22RCZ 8" Fullrange Driver

Seas FA22RCZ 8" Fullrange Driver

This blog post features a full test on the Seas FA22RCZ 8" fullrange driver.  Information on this driver can be found here.  Why the Seas FA22RCZ? Affordable  Made in Norway...
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Mid-Bass Horn Cabinet No.1274

Mid-Bass Horn Cabinet No.1274

In this blog post I would like to feature full objective test data on the Mid-Bass Horn Cabinet No.1274.   1274 includes the following features: Dual B&C 12PE32 per cabinet  109dB...
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JBL 2265G-1 versus RCF L15-554K

In this blog post I would like to compare the JBL 2265G-1 against the RCF L15-554K.  I will be using objective test data using near field measurements.  Why this comparison?...
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Eton Versus Dayton --- 12" Woofer Comparison

In this blog post I would like to compare two woofers and provide both objective and subjective test data.  I would also like to extend my testing to include a...
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Speaker System No.1349

Speaker System No. 1349 is a system design study that continues on from the lessons learned on the Nighthawk speaker.  Generally the Nighthawk and 1349 speaker (featured in this blog post)...
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Sabourin Horn Plans

In this blog post I would like to introduce a new DIY front horn that continues on from the Summer Rain horn.  The Sabourin Horn is simpler to make and...
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Speaker No. 1198 Measurements

This blog post features a full set of acoustical measurements on the No.1198 Speaker.  I also provide my subjective listening impressions.  A full description of this speaker can be found...
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B&C DCX-464-16 versus Lamar M2-16 Field Coil Compression Driver

In this blog post I compare the B&C DCX-464-16 against the Lamar M2-16 Field Coil Compression Driver.   For this comparison I'm using my own ES-290 Biradial wood horn which loads down...
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B&C DCX-464-16 with ES-600 Biradial Horn

B&C DCX-464-16 with ES-600 Biradial Horn

This blog post features the new B&C DCX-464-16 1.4" Coaxial Compression Driver.  I will show some objective test data and provide feedback on my subjective listening impressions.  For this test...
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Purifi PTT6.5 Test Results in 1198 Transmission Line Enclosure

This blog post features the objective test data for the Purifi PTT6.5 woofer mounted in my own transmission line enclosure design.   1198 Floor Standing Transmission Line    Frequency Response Measurements ...
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Revised Distortion Tests For RAAL 70-20XR on 1155 Horn

Please note the PDF version of these test results can be downloaded Here.  From further investigation it was discovered that a potential cause of the low output of the RAAL...
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1198 Floor Standing using Purifi PTT6.5W04

1198 Floor Standing using Purifi PTT6.5W04

Continuing on from the 1159 stand mount speaker is a new floor standing design.  The 1198 floor standing speaker has the following changes compared to the 1159 stand mount...  Purifi...
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Horn No. 1155 for RAAL 70-20XR Pure Ribbon Tweeter

Horn No. 1155 for RAAL 70-20XR Pure Ribbon Tweeter

Horn No.1155 using ES-Biradial Geometry for RAAL Ribbon Tweeter      This blog post features a custom horn that I designed and built for a customer that uses the RAAL...
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Speaker No.1159 --- Distortion Tests and Crossover Design

Speaker No.1159 --- Distortion Tests and Crossover Design

Continuing from my previous blog post on Speaker No. 1159 I continue my comparison against a non-horn loaded test baffle.  I compare distortion sweeps at high SPL and look at why 1159...
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Speaker No.1159 --- Horn Loaded 2-way -- Medium Sized Bookshelf

Speaker No.1159 --- Horn Loaded 2-way -- Medium Sized Bookshelf

Introduction  I normally focus on horn speakers however I've been wanting to develop a medium sized bookshelf speaker that uses technology from my flagship products.  I still wanted the speaker...
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Altec 806-8A on Altec 811B Horn

Altec 806-8A on Altec 811B Horn

This blog post features a full set of measurements on the Altec 806-8A compression driver mounted to the Altec 811B Horn.  For interest's sake please see my other blog posts...
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Altec 806-8A Compression Driver

Altec 806-8A Compression Driver

  This blog post features the Altec 806-8A compression driver mounted to the ES-600 Biradial using a 1" throat.  I purchased a pair of these drivers used to see how...
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Altec 811B with TAD TD-2001

Altec 811B with TAD TD-2001

This blog features a full set of measurement on the Altec 811B biradial horn.  My plan was to test this horn with a pair of Altec 806-8A compression drivers however...
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