Model 102

At Jeff Rowland Design Group, truly great audio has been reduced to this: The astonishingly powerful and incredibly efficient Model 102 stereo amplifier, definitive proof that good things can come in small sizes. Utilizing the same ICEpower™ patented power conversion technology that has revolutionized modern amplifier design, the Model 102 packs a true 100 watt wallop in a tiny 3x13x7 inch machined solid aluminum housing virtually immune to resonance. The newest member of the JRDG family of fine audio components, the 102 is the product of an obsessive quest to perform one of modern electronics' most difficult balancing acts - the creation of clean, dynamic power without the unwanted and, now unwarranted, byproducts of excessive heat and mass. The Model 102 achieves this goal by the innovative application of impressive new developments in power supply and power output stage design. This 10-pound marvel features a balanced input/output topology combined with true 
dual-mono power supplies to deliver handsomely on the promise inherent in its elegant appearance. Pound for pound, the Model 102 is simply an amplifier without peer, producing an entrancing and satisfying musical experience far out of proportion to its dimensions... and at a price that redefines value. The JRDG Model 102, size one up and discover the true state of audio excellence, from the Jeff Rowland Design Group.

Output Power:
Continuous RMS
@ 8 ohms
@ 4 ohms

Non-inverting, Pin 2 Positive

1 x Balanced XLR
(Unbalanced operation requires an optional XLR to RCA adapter)

CCIF Intermodulation Distortion, 14/15kHz:

• Idle - 10 watts
• Maximum - 500 watts

27 dB

Model 625 Stereo Amplifier

Features

Machined Aluminum Chassis
Precision-machined chassis with integrated heat-sinks, milled from a solid block of aircraft grade aluminum, provides exceptional thermal heat transfer/dissipation, RFI/EMI shielding, and resonance control.
Composite Circuit Architecture
Unique composite circuit architecture incorporating separate Class AB voltage and current gain blocks with no overall negative feedback, delivers a sensuous grain-free musicality of unparalleled transparency and low level resolution.
Balanced Topology
Inherent cancellation effects of balanced topology implemented throughout all power and input/output circuits ensures greatly reduced distortion and noise under dynamic signal conditions.
High-Current Copper Bus-bars
High-current, dual polarity, ultra low impedance copper bus-bars distribute both power supply input current and signal output current, virtually eliminating intra-circuit EMI signal contamination, greatly reducing internal wiring, while increasing circuit board rigidity.
High-Precision Surface Mount Components
Extensive use of Lead (Pb)-free, low temperature coefficient, active and passive surface-mount components results in significantly smaller loop areas, reduced circuit capacitance and inductance, and introduces less noise than conventional leaded components.
Transformer-Coupling and Isolation
Transformer coupled input circuitry provides universal component compatibility and virtually eliminate ground loop noise and RFI/EMI. Transformer coupling ensures identical amplifier overall gain when using unbalanced input adapters.
Power Factor Correction
Power Factor Correction (PFC) in the power supply reduces AC line harmonic noise pollution and increases AC line power utilization to 99%.
High-Efficiency Switch-Mode Power Supply
Highly efficient, compact, light weight, 1500 watt DC switch-mode power supply provides optimum voltage regulation for all circuits and operating conditions, and allows for quiet operation over a wide range of AC mains power sources.
Dual-Position Speaker Terminals
Dual CE approved speaker output terminals, in both horizontal and vertical orientation, require no tools for secure, low resistance connections, and allow for easy bi-wiring applications.
Flexible 20 amp AC Power
20 amp AC power inlet accepts a wide variety of after-market high-performance power cables.
Front Panel Standby Button
Illuminated front panel push-button switches the amplifier into standby mode (<1 watt consumption).
Rear Panel Remote Jack
12V 3.5mm jack on rear panel permits amplifier power on/standby switching in remote and home theater applications.
Self-Leveling Supports
Removable 3-point self-leveling Delron chassis supports provide high frequency mechanical noise isolation.

Output Power:

<55 µv, 20 Hz – 20 kHz, unweighted

0.005% @ 1 kHz, 8 ohms

Pin 2 Positive

1 pair balanced (XLR)

100 watts

54 lbs. / 24.5 kg

64 lbs. / 29 kg