Audio Database
HL-P3ES
Commentary

Based on HL Compact7, this speaker system was developed with the theme of how to materialize Harvey House Sound in an easy-to-use small enclosure.

The unit uses custom-made driver units with unique adjustment of materials with strict pair-matching standards.
In addition, it is treated with anti-magnetic influence on TV screen etc. is prevented.

In the low range, an 11 cm cone type woofer with polypropylene diaphragm material is mounted.
It uses a 25 mm aluminum voice coil, is mounted on a diecast chassis, and uses new low-loss materials for surround for smoother piston motion.

The high frequency band is equipped with a 1.9 cm dome type tweeter using aluminum for the diaphragm, which has been adopted by Harvey since the HL Compact.
As with the HL Compact, aluminum is treated with black anode to increase strength, and the voice coil is treated with ferrofluid cooling, which accelerates thermal diffusion at high temperatures by applying magnetic oil, so that the high frequency range can be reproduced stably.
In addition, new synthetic resin material is used for the dome edge.

The crossover network is designed to be optimal using computers and test equipment.
In addition, the final sound is determined by the designer, Alan Shaw, who performs a balance tuning based on the reproducibility of the natural voice of close relatives including his beloved daughter リアンヌ.
In addition, the network is installed close to the rear panel terminal.

The speaker terminal is gold-plated with banana plug for bi-wiring connection.

The enclosure is sealed using MDF material and has an internal volume of 5.6 liters.
Super Tuned Structure (STS), a tuning technology established in HL Compact7, is applied to the structure, and tuning is done with thin materials without making the wood thick and rigid unnecessarily. Referring to the manufacturing method of string instruments such as violins and acoustic techniques, by layering multiple materials with different resonance and stiffness between hard materials, unwanted resonance is damped by the physical properties of the materials themselves and their combination.

The grill adopts the Frameless Frame method adopted in HL Compact7.
The frame edge of the grille made of jersey material fits snugly into the groove of the front baffle to improve the integrity of the enclosure and improve sound reflection to improve directional characteristics and sound image localization.

Model Rating
Method 2-Way, 2-Speaker, Sealed Type, Bookshelf Type, Anti-magnetic Type
Units Used For low band : 11 cm cone type
For high-pass : 1.9 cm dome type
Playback frequency band 76 Hz ~ 20 kHz ± 3 db (on @ 1m axis)
Pair matching accuracy Within 0.75 dB
Crossover frequency 3.5kHz(18dB/oct)
Output sound pressure level 82.5dB/W/m
Impedance 6 Ω
Maximum allowable input 45W (continuous)
External dimensions Width 188x Height 305x Depth 194 mm
Weight 5.7kg