Maybe you should reconsider your use of this driver for high frequency duty.

Adam

If you order a PSD3003 from Eminence right now, you'll find they're not in stock. Anything else will be at your door in days, but the PSD3003 and its diaphragms aren't available. I suspect they are preparing to supercede it with a replacement.

Adam

Alternately, consider running a cone driver midrange. You can horn load them and crossover to 1" compression drivers, which perform much better at high frequency than the larger drivers with 2" throats.

I'm trying to keep the system to a 3-way design, and there aren't really any horns that will load from 200-2000 Hz effectively. perhaps that is my downfall, that I'm not willing to go 4-way. Perhaps I will consider it.

40-160, 160-800, 800-2500, 2500 and up?

I don't know of any decent 8" drivers to load from 800-2500. All the Eminence ones are pretty high Q units... If I remember correctly. I'll have to take a second look. Any suggestions?

Adam

I just hope it sounds decent... Any experience here Wayne?

Adam

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Unlike JBL’s traditional SFG (Symmetrical Field Geometry) motor structures, the Maximum Output transducers employ a new magnetic structure with a copper sleeve symmetrically positioned on the polepiece above and below the top plate. This copper sleeve is located in a larger voice coil gap than is found in traditional designs, and provides significant reductions in both second and third order harmonic distortion with a single design element. Due to this innovative new magnet structure design, these transducers exhibit extremely low midband distortion and feature a very smooth, gradually rising response over the transducers' target operating ranges.

A hallmark of these units is their enhanced dynamic compression characteristics. Power compression in all loudspeakers results from the increase in voice coil temperature and the consequent rise in dc resistance. Power compression at high operating levels can rob music of its essential dynamics. Professional users who are concerned with performance under long-term periods of continuous usage at or near rated power will find that these transducers exhibit approximately 3 dB of power compression at full rated power.

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2012H 250mm (10 in) Midrange/Midbass Transducer 2012H Specification Sheet
(Adobe Acrobat, 146kb)

The 2012H Maximum Output transducer is specifically designed to provide smooth, low-distortion midrange output for the highest quality sound reinforcement applications. It is suitable for use in both direct radiator and horn-loaded applications, and can be mounted in small enclosures while maintaining smooth, peak-free response.
300 W AES continuous pink noise power capacity
8 ohm impedance
76 mm (3 in) edgewound aluminum ribbon voice coil
75 Hz-7 kHz response
100 dB sensitivity, 1 W, 1 m (3.3 ft)
New magnet structure with enhanced distortion-reduction characteristics
Net weight: 8.6 kg (19 lb.)

• Specs for 2012 driver

Two-way speakers require five octaves from each subsystem, and their main advantage is that of simplicity. There is only one crossover point, so there is only one place to consider the effects of overlap. This option is made possible since most speaker motors cover five octaves adequately. However, no horns have this kind of bandwidth, so horn loading can only benefit a part of system response. Compensation must be used if horn are employed over three octaves, so it is a "must" in horn-loaded two-way speakers.

The JBL tent sale has a batch of 2123J's for $130.
These look flat as a board, 101dB, ~200Hz-> 5-6KHz.
250watts. They are 16ohm drivers, though. Maybe those
would fit the bill.

Chris