RBH UNRIVALED 61/PX – Stand Mount Bookshelf Speaker

RBH UNRIVALED 61/PX – Stand Mount Bookshelf Speaker

Flagship performance without the hefty price tag. Introduced at Southwest Audio Fest 2024 and Axpona 2024, the 61/PX is a phenomenal performer with an incredibly inert construction, greatly improved damping, and a cost-no-object crossover. It delivers incredible transient response, expansive sound staging, and razor sharp imaging. Whether building a small room home theater, a music studio, or a dedicated satellite/subwoofer hi-fi system, you will be hard pressed to find a better speaker for that utility at any price.

• (1) 1.38" x 1" (35mm x 25mm) AMT tweeter
• (1) 6-1/2" (165mm) aluminum cone woofer, cast aluminum basket, solid metal phase plug
• High Density Fiberboard (HDF) cabinet
• 8Ω Impedance
• 2-way crossover
• 50Hz-20kHz (±1.5dB) Frequency Response
• 88dB Sensitivity
• Hand-built UNRIVALED PX passive crossover with Mundorf Supreme Silver Gold & Oil bypass capacitor
• Internally wired with Kimber Kable
• Made in USA
• 10 Year Limited Warranty (with registration within 90 days)

Highlights & Key Technologies

The UNRIVALED Difference
UNRIVALED is a pursuit by RBH Sound to make the best even better; to make a speaker system with the best technology, best build quality, and top tier internal components. To achieve this goal, RBH offers two varieties of UNRIVALED to cater to the individual: UNRIVALED Passive (/PX) and UNRIVALED Active (/AX). The 61/PX is the passive variant.

Damping Materials
Wool is an excellent acoustic absorber. It has a greater density and absorptive ability over polyfill. It is the material of choice for any sealed enclosures or chambers. For ported enclosures, cabinets are lined with high quality 1 inch foam which is a terrific absorber and ensures nothing is projected out of the ports.

Cabinet Antiresonance Lining
Each UNRIVALED speaker cabinet is internally lined with an anti-resonance material. This material is made from rubber and aluminum and is adhered to the internal walls of the speaker. Effectively, it adds to the absorption of unwanted vibrations.

Internally Wired with Kimber Kable
As part of the no compromise that RBH pledges with UNRIVALED systems, Kimber wire is utilized with their tried and true braided geometry which further improves crosstalk rejection and external influences.

Acrylic Polymer Damping Panels
To further the performance of the speaker, as well as cosmetics, side panels made from acrylic polymer solid surface, which has a density similar to granite, can drastically improve the rigidity of the speaker, which substantially reduces cabinet resonance providing several benefits including: reducing smearing, improved imaging, improved soundstage, tightened response, and improved clarity.

G.A.D.S. (patent pending)
On select, sealed only, speaker systems, RBH's G.A.D.S. (granular acoustic damping system) technology is employed. Not only does it have mass loading effects, which can further improve the rigidity of the cabinet, it is also an excellent acoustic absorber. The marvel of this technology is while the granular particulates may occupy a significant amount of space in the enclosure, the impact on the total volume is negligibly affected, therefore the tuning of the box is near unaffected.

UNRIVALED Passive Crossover (PX)
While designing the UNRIVALED crossover, two main goals were at the heart of the project: to maintain and preserve the original and desired tone curve of RBH speakers, and to improve the signal integrity without coloring the sound. These crossovers are hand built with hand selected components onto a specially designed PCB board with triple the thickness of copper lining the board, providing the best compromise of preserving the signal integrity that is achieved with a point to point design and the cleanliness of a PCB board. The well renowned Mundorf Supreme Silver Gold & Oil bypass capacitor is used in the tweeter circuit, which increases the depth of the soundstage and sharpens the imaging. The sonic differences between UNRIVALED and Reference are as follows: clarity improves, soundstage increases in both breadth and depth, imaging is improved, and transient response is faster — all without sacrificing the tried and true RBH Sound sonic signature.

Details & Specifications

MODEL INFORMATION
Model: UNR 61/PX
Series: UNRIVALED Series | Passive Freestanding
System Type: 2-way Monitor Speaker
Sold per pair

DRIVE UNITS
(1) 6-1/2" (165mm) cast aluminum basket, aluminum cone woofer (silver or black-anodized) solid metal phase plug
(1) 1.38" X 1" (35mm x 25mm) AMT tweeter

PERFORMANCE
Frequency Response: 50Hz-20kHz (±1.5dB)
Sensitivity: 88dB
Impedance: 8Ω

CROSSOVER
Crossover Frequency: 2700 Hz
Crossover Slope: 24dB/Octave

CABINET DETAILS
High Density Fiberboard (HDF)
Satin Black or White Paint

GRILLE DETAILS
Magnetic Grille (black fabric), 1/2" MDF

FINISHED DIMENSIONS
7-3/4" W x 14-13/16" H x 12-1/4" D
(197mm x 376mm x 311mm)
Not including grille or side panels

WEIGHT
25 lbs (11.34 kg)+

ORIGIN & WARRANTY
Made in USA
Warranty: 10 Year Limited Warranty (with registration within 90 days)