Model 535 (Out of Production)
USER MANUAL
A bridgeable power amplifier that delivers stunning dynamic realism and expressive refinement. Housed in a chassis milled from a solid block of aircraft-grade aluminum, the Model 535 features an innovative topology that epitomizes power and efficiency.
From a single Model 535 in stereo mode at the core of an intimate audio system, up to multiple bridged units powering a complex home theater setup, down to a bridged pair driving a sophisticated two-channel environment, the Model 535 delivers exquisite resolution, authority, and control to speakers of almost any size and any load.
- MACHINED ALUMINUM CHASSIS: Precision-machined chassis, milled from a solid block of aircraft grade aluminum, provides exceptional thermal heat transfer/dissipation, RFI/ EMI shielding, resonance control, and minimizes micro-phonically induced microvibrations from any source.
- CERAMIC CIRCUIT BOARDS: Critical audio circuits are implemented on mil-spec, multilayer, low dielectric constant, Rogers™ ultra-rigid ceramic circuit board substrate for extremely low energy retention and absorption. Large low impedance ground planes areas for extended internal star-grounding.
- BALANCED TOPOLOGY: We utilize custom-designed ‘amorphous’ core input signal transformers.
Inherent cancellation effects of balanced topology implemented throughout power and input/output circuits ensure reduced distortion and noise under dynamic signal conditions.
- 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.
- Thin-Film Resistors: All resistors are low noise, 0.1% thin-film type for extremely low thermal noise which complement the low-noise characteristics of the active circuitry.
- TEFLON-INSULATED WIRES: All signal carrying input and output wires are teflon insulated, for low dielectric energy storage, ensuring that each audio note naturally decays into the deeper silence of the music.
- TRANSFORMER-COUPLING AND ISOLATION: Transformer coupled input circuitry provides universal component compatibility and virtually eliminates ground loop noise and RFI/ EMI. Transformer coupling ensures identical amplifier overall gain when using unbalanced input adapters.
- ACTIVE POWER FACTOR CORRECTION: Power Factor Correction (PFC) integrated into the power supply reduces AC line harmonic noise pollution and increases AC line power utilization to 97%.
- HIGH-EFFICIENCY SWITCH-MODE POWER SUPPLY: Highly efficient, compact, light weight, 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.
- BINDING POSTS: CE approved speaker output terminals require no tools for secure, low resistance connections.
- FRONT PANEL STANDBY BUTTON: Illuminated front panel push-button switches the amplifier into standby mode (<0.3 watt consumption). An internal switch allows the user to dim the front panel indicator light “ring” or shut off the light altogether when the amplifier is powered on. REMOTE ON/OFF: A 1/8” (3.5mm) mini plug connector on rear panel permits amplifier power on/standby switching in remote and home theater applications. ><0.3 watt consumption). An internal switch allows the user to dim the front panel indicator light “ring” or shut off the light altogether when the amplifier is powered on.
- REMOTE ON/OFF: An 1/8” (3.5mm) mini plug jack on the rear panel permits amplifier power on/ standby switching in remote and home theater applications.
| Max Output Power | 250 watts @ 8 ohms / 500 watts @ 4 ohms; 900 watts @ 8 ohms BTL (bridge-tied load)
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| Frequency Response | 5 Hz – 70 kHz, -3 dB |
| Dynamic Range | 120 dB (A) / 124 dB (A) Bridged |
| Output Noise | 40 Microvolts A weighted |
| Input Impedance | 40k Ω |
| THD + Noise | < 0.05%, 20 Hz – 20kHz |
| Damping Factor | > 1000 @ 1kHz |
| Overall Gain / Bal. or Unbal. | 26 dB Stereo/Bridged |
| Common Mode Rejection Ratio | > 90 dB, 20 Hz - 20 kHz |
| Peak Output Current | 30 Amps |
| Intermodulation Distortion (CCIF) | 0.0015% |
| Intermodulation Distortion (TIM) | 0.0035% |
| Standby Power Consumption | 0.3 watts |
| Amplifier Dimensions (h/w/d) | 3.4” x 15.5” x 11.0” / 86 x 394 x 279 (H x W x D) |
| Amplifier Weight | 22 lbs. / 9.79 kg |