LHR High Performance Bookshelf Monitor
Available on application for donation to charitable organisations and fund raisers.
This 2 way Acoustic Suspension speaker was available from Monoprice up until 2022 as a stock model in their range. When they discontinued this model they became available as a white box / unbranded speaker that was available until stocks were exhausted.
In its raw native form the crossover used was a very basic single element capacitor. This was just a perfunctory item used to protect the tweeter from damage from bass frequencies. In reality, they had not been properly voiced to reveal their true potential.
I could hear straight away that they had real promise, especially as I could hear how good both drivers were without the much needed crossover that they lacked.
I spent some time upgrading the performance in key areas :
Design a high quality crossover to voice the speaker properly.
Use point to point soldering, Air Core Inductors and Metalised Film Capacitors for the crossover.
Upgrade internal wiring to high quality low dielectric OFC multicore cable.
Upgrade cabinet bracing and add bitumen damping to cabinet walls.
After assessing the final performance transformation I decided to bulk purchase 24 pairs and offer them as a high performing bookshelf speaker suitable for small to medium listening rooms that could possibly used in some small way to help raise money / funds for charitable causes etc.
I am now proud to offer a small sized bookshelf speaker that is unfussy in placement with a broad dynamic and naturally warm detailed sound that is the Leicester HiFi "sound".
If you or your organisation feels that having a pair of these speakers would help in some way then please feel free to email me.
Specifications:
HF: High Performance Ribbon Tweeter
LF: 6.5 Inch Paper/Poly low mass Driver
Bass Loading: Acoustic Suspension 12db/Oct
Crossover: Phase Beating V4
Frequency Response 70Hz - 22kHz
Dynamic peak ability @ 85dBa / 15db
Maximum Peak SPL 101 db @ 1 Mtr / 100 - 20kHz
Nominal impedance 6 Ohms
Sensitivity 87db/2.83volts/1 watt @ 1mtr 100Hz-22Khz (+/- 3db)
2nd & 3rd Harmonic Distortion 100-20khz at 90db / 1mtr: <1%
Recommended power ( unclipped ) 20 - 80 watts
Terminals: Single Wired 4mm Bare Wire Spring Loaded
Cabinet: Black Vinyl Covered 12mm MDF
Grilles: Black Fabric
Dimensions in mm: 190w / 305h / 165d