The 933's amplifier is pure single-ended Class A, employing active constant current sources. Each channel has just one continuously biased output device. The output waveform is therefore completely free from crossover distortion and has excellent small signal integrity. DC coupling removes capacitors in the signal path, enhancing detail.
Size (933 amplifier) | 150*220*38 (W*D*H) |
---|---|
Size including connectors | (933 amplifier)|| 150*235*38 (W*D*H) |
Weight (933 amplifier) | 1.8 Kg |
Packaged Size (combined) | 330*290*195 |
Packaged Weight (combined) | 5.7 Kg |
Power consumption | 22 Watts |
Inputs | 2 Stereo line 4 RCA phono sockets |
Input Impedance | ≥20KOhms |
Gain (max) | 19dB |
Frequency response | 15-120KHz +/- 0.5dB |
Output impedance | ≤ 3 Ohms |
Output Power | 800mW into 300 Ohms / 250mW into 60 Ohms |
Distortion (THD) | ≤ 0.05% 10mW into 300 Ohms |
Signal to Noise Ratio | ≥ 85dB A-Weighted |
Phase | Phase correct (non-inverting) |
The task of moving the delicate membrane of a headphone driver is a very different to energising the reactive complex impedance of a multidriver loudspeaker.
With much less mass to move and without the masking of listening environment and room interaction, the small signal integrity of an amplifier becomes even more critical than that of a regular power amplifier
The Trilogy 933 is a clean sheet design with the same natural presentation and vibrant musicality found in our award winning pre and power amplifiers. Its a subtle, but crucial distinction: we like to think of the Trilogy 933 as an amplifier for headphones, not a headphone amplifier..
Machined from a solid billet
The svelte amplifier enclosure is machined from a solid billet of aluminium. Its hefty 1.3kg mass provides outstanding physical and electrical isolation for each of the active circuit elements as well as a stable thermal base for heatsinking the output devices..
Pure single-ended class a
The 933’s amplifier is pure single-ended Class A, employing active constant current sources. Each channel has just one continuously biased output device. The output waveform is therefore completely free from crossover distortion and has excellent small signal integrity.
DC coupling removes capacitors in the signal path, enhancing detail even further. The discrete topology is implemented with carefully selected audio grade components to deliver amazing resolution and drive capability for any high quality headphone.
separate choke input power supply
The DC for the regulators is derived from a separate power supply housed in a brushed stainless steel enclosure. This can be placed remotely to keep any magnetic fields well away from the sensitive active circuitry. The custom mains transformer is designed with a low operating current density and a copper faraday screen. It feeds the main Mundorf reservoir capacitors through a bespoke inductor, forming a true choke input supply for absolute minimum electrical noise.
As a company our primary goal is to provide a seamless service that results in customer satisfaction. We aim to deliver within 3 working days. Unfortunately, there may be occasions where this time frame may not be met due to unforeseen circumstances; in this instance, we deliver product/s as soon as we can. All delivery charges are included within the prices quoted, unless otherwise specified.
All small items are usually delivered between 9am and 6pm, on a Monday to Friday, unless a Saturday delivery is requested. Follow My Parcel is an industry-changing innovation from DPD Local, which will give your customers unparalleled levels of information and peace of mind.Not only will your customers receive a one hour delivery timeslot, but they’ll now also be able to track the progress of their parcels on a map as our drivers make their way to the delivery addresses. Follow My Parcel will: