I have for sale stereo amplifer, based on Holton HPA-NXL200 R4.2 modules, precisely installed in custom build beautiful enclosure. I could say this is one of the nicest and solid built of this amplifier around. It`s superb sound desire top notch components, so amplifier consist of one 500 VA (230V) transformer, made by my own specifications, with separate windings for each channel. Special part of this amplifier are top notch separate power supply for each channel. Power supply not only provide +-50V to the amplifier output stage, but also has built in capacitance multiplier for delivering clean +-55V to the amplifier front stage (amplifier boards already provide this option). Power supply consist of high end components as soft recovery diodes, Vishay main 4x10000uF 63V capacitors (per PSU) and Nichicon FG capacitors for capacitance multiplifer. Amplifier also has special soft start circuit which is connected to the mosfet DC protection pcb boards (prototype version) on speaker terminals. In case of DC on speaker terminals, amplifier (soft start) will shut down. For wiring speaker lines, Jantzen solid core wire was used. For power supply wiring, Jantzen stranded wire was used. Dimensions of amplifier are: 33x31x12,5 cm (WxDXH). Amplifier is in perfect operating condition. Amplifier should put out minimum 120W/8 ohms and 180W/4 ohms (in practice possible even more, due higher input stage voltage). Input is provided with high quality Neutrik XLR terminals.
Link to the (R4.5 boards): https://holtonprecisionaudio.com/co...xv200l-r4-balanced-xlr-input-amplifier-module
Price is 650 EUR + PayPal fee + post costs
NOTE: I am not responsible for any customs fees, taxes, import duties.
Link to the (R4.5 boards): https://holtonprecisionaudio.com/co...xv200l-r4-balanced-xlr-input-amplifier-module
Price is 650 EUR + PayPal fee + post costs
NOTE: I am not responsible for any customs fees, taxes, import duties.
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I got few questions about toroid transformer primary voltage....this transformer accept only 230V voltage. In case of 110V mains voltage, mains and soft start transformer should be replaced.
Hi, why you are selling? Is it not satisfying you sonically? Did you had a chance to compare them with some stock products?
I am asking out of curiosity, as my HPA NXL300 is under build right now. We can talk on PM if you like. Thanks
I am asking out of curiosity, as my HPA NXL300 is under build right now. We can talk on PM if you like. Thanks
I have built two Holton amplifiers. One will keep for my reference and this one is ready to go 😉