News

SB Acoustics SB23NBACS45-8 8" Woofer Review

In this blog post I review the SB Acoustics SB23NBACS45-8 8" aluminum woofer. This woofer features an extensive list of features:  Soft low damping rubber surround for improved transient response Geometrically reinforced...
Read more
SB Audience Nero-12MWN400D Review

SB Audience Nero-12MWN400D Review

In this blog post I review the SB Audience Nero-12MWN400D 12" Mid-Bass Woofer.  This new series from SB Acoustics includes an extensive feature list: Proprietary cone paper material with manila pulp...
Read more
SB Acoustics 5" Woofer Version 1 & 2 Comparison

SB Acoustics 5" Woofer Version 1 & 2 Comparison

In this blog post I compare the latest version of 5" woofer from SB Acoustics against the previous.  The first version SB15NRXC30-8 has been replaced by the second version SB15NRX2C30-8. ...
Read more
B&C 10" Mid-Bass Comparison

B&C 10" Mid-Bass Comparison

In this blog post I compare two 10" woofers from B&C.  The 10NW76 and 10HPL64 are very similar with a few exceptions.  B&C 10NW76 B&C 10HPL64 Differences: The 10NW76 has a 76mm voice coil...
Read more

ER Audio ESL Panel Full Test

This blog post features a full test on the ER Audio ESL Panel (Version 4).  A customer sent me these panels to test.  I wanted to establish a baseline set...
Read more

IMD Measurements Outdoors Versus Indoors

In this blog post I compare intermodulation distortion measurements being taken either indoors or outdoors to compare the effects of the room.  I attempt to answer the following questions: Is...
Read more

B&C FB464-16 Passive Crossover Review

In this blog post I test the B&C FB464-16 passive crossover.  This crossover is specifically designed to be used with the DCX464-16 compression driver.     Product Description  The crossover does...
Read more

The Audibility of Intermodulation Distortion

In this blog post I compare a driver's intermodulation distortion (IMD) against the spectral content of music.  Unfortunately there is not a great wealth of study data to support the...
Read more
Yamaha JA6681B Compression Driver

Yamaha JA6681B Compression Driver

I this blog post I look closely at the Yamaha JA6681B compression driver.  This driver is similar in size to the Altec 288 and has the following specifications.  This compression...
Read more

The Effect of Amplifier Choice on Speaker Intermodulation Distortion

In this blog post I would like to look at the effect amplifier choice has on a speaker's measured intermodulation distortion levels.  My test involves measuring the acoustical performance of...
Read more
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...
Read more
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...
Read more

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?...
Read more

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...
Read more

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)...
Read more

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...
Read more

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...
Read more

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...
Read more