Tubes Asylum: REVIEW: Herbie's Audio Lab HAL-O Vacuum Tube Damping Instrument Tubes by jpchleapas

Model:	HAL-O Vacuum Tube Damping Instrument
Category:	Tubes
Suggested Retail Price:	$14.95
Description:	vibration-absorbing tube damper
Manufacturer URL:	Herbie's Audio Lab
Model Picture:	View

Review by jpchleapas ( A ) on January 12, 2004 at 08:38:26
IP Address: 64.136.26.225

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for the HAL-O Vacuum Tube Damping Instrument

I got these to use in my CJ Premier 4, and my modified Dynaco ST-70. Both amps are using Mullard EL34 tubes. After some careful listening I must say these things really work. Unlike the soft rubber types these are very well made and will not melt on my expensive tubes. The sound coming from my speakers is much better. The voices are more clear, and there is more "detail" in the music I am listening to. I was not expecting so large an improvement for such short money to be honest. I have very good speakers with the 31" x 31" JBL 2360A biradial horns. The 2" compression drivers are vintage TAD TD-4001 16 ohm. The bass bins are twin 15" woofers with JBL drivers. These speakers are very good sounding and ruthless to whatever signal is fed into them. I would suggest anyone using a tube amplifier, or tube preamplifier give these a whirl. I have no connection with Herbie's Audio Lab. I am just another happy user.

Product Weakness: None so far..
Product Strengths: inexpensive tweak, good build quality, and very easy to install.

Associated Equipment for this Review:
Amplifier:	Conrad Johnson Premier 4
Preamplifier (or None if Integrated):	Conrad Johnsaon PV-10A
Sources (CDP/Turntable):	Well Tempered Classis, Dynavector Karat 17d2, Denon HA-1000 head amplifier
Speakers:	2-Way JBL 2360A horns, Tad TD-4001 drivers, and twin 15
Cables/Interconnects:	Are you kidding, just oxygen free copper type
Music Used (Genre/Selections):	old rock & roll, jazz, blues, and light classical
Room Size (LxWxH):	12' x 12' x 6'
Room Comments/Treatments:	Needed badly a new room for 6' tall speakers
Time Period/Length of Audition:	a week
Other (Power Conditioner etc.):	powervar
Type of Audition/Review:	Product Owner

Product Weakness:	None so far..
Product Strengths:	inexpensive tweak, good build quality, and very easy to install.