Detail 01
12-inch 15W Celestion Alnico Blue
The speaker starts to break up when the amplifier is driven hard.

Independent shopping perspective
With the Celestion Alnico Blue installed, the HT15 takes its 15W Class AB tube design toward a brighter, more mid-forward response. Harmonic tremolo runs into the tube spring reverb, and the amplifier is designed to break up more readily than Milkman’s Creamer. The 12-inch Alnico Blue has the tightest bass response of the available speaker choices and begins to break up under hard drive; once overdriven, it reduces low end while pushing the midrange further forward. The chassis is hand wired on a turret board with Mercury Magnetics transformers and Jupiter capacitors.

Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
The speaker starts to break up when the amplifier is driven hard.
Detail 02
The HT15 routes its harmonic tremolo into the reverb circuit.
Product questions
Straight answers to the questions shoppers most often ask about this product.
It becomes highly reactive, shedding low end and emphasizing the midrange further.
Yes. Its lower internal voltages are intended to make it break up more readily than the Creamer.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.