The little T1500 Triode amp is really something very special and does extremely well here at Lotus. This is no ordinary 300b, this is South Korean Allnic style with power, drive, top end and low end and of course, the most mesmeric midrange you could ever ask for. Although it’s dynamic enough for all genres of music, jazz/acoustic/vocalist listeners will adore the hugely expansive and expressive midrange that the T1500 gives. Nothing competes with a single ended triode emp in this respect. Hifi Pig recently reviewed it for me and were completely bowled over by it. Another piece that will give pre and power combinations costing over twice the money a really hard time.
‘The new T1500 now available in black and natural. All Aluminum chassis with Allnic in house wound Permalloy Nickel transformers. This 300B Integrated amplifier delivers 12.5 WPC in Pure Class A single ended style, 15W with 300B XLS. Ruggedly built weighing in at 50 pounds, this 35dB gain powerhouse will drive most speakers of 90dB + efficiency to very comfortable sound pressure levels. T1500 has been reviewed by Dagogo’s Jack Roberts. He claims this piece is one of the most important to hit the audio world under $10,000. We are proud of this amplifier, and you will be also. It was also hailed as a Class A recommended component by Stereophile.’
Available in silver or black. 2 year warranty on all Allnic Audio Products , 1 year on factory supplied tubes. Part exchange welcome, just get in touch for in-store and home demo.
- single tube gain stage
- transformer coupled
- optimized for standard 300B (12.5 watts/channel) and 300B-XLS (15 watts/channel) tubes
- easy bias
- analog power tube meters
- “soft start” circuitry
- a unique approach to output tube drive: more available power without overdriving tubes or reducing tube life
- pure class A operation
- Absorb gel tube dampers
- natural level of negative feedback (-6db) for reduced distortion, improved clarity and class-leading bass – with
- standard setting, ergonomic build quality
The T-1500 has the following features:
12.5 watts per channel of pure class A high power output. The T-1500 is a single ended power amplifier. Almost all other 300B amplifiers are under, and distortion, driven. This is a result of the use of conventional “Resister- Capacitor” circuits, which give only up to around a 70V swing voltage, with high distortion. This means that an already distorted signal of a lower than optimum swing voltage is directed to the deep biased 300B grid. Allnic’s powerful “Inductor Drive” circuit gives up to a 150V swing voltage, with very low distortion (about 0.3%). It is this drive delivered to the T-1500 that allows for a higher output (12.5w) than the approximately 8 – 10w output that could be expected from standard 300B circuits.
Real power drive. The driver tube, a PCL86, is a very strong power pentode/triode. We use this power pentode to drive the 300B’s via a choke plate inductor. Our choke inductor (100% nickel permalloy PC core) has very low power loss and infinitely high load impedance. This configuration is an ideal drive stage for 300B SET.
No separate preamplifier section. The T-1500 has only two gain stages, with a total gain of +35dB. The PCL86 driver tube gain stage receives the signal directly from the line inputs. The reduced number of gain stages means less distortion. Nickel alloy output transformer. Allnic uses sophisticated ratio mixed nickel permalloy PB cored output transformers. Because of their extremely high initial permeability, it is possible to use lower turns on the primary winding while retaining very high ‘open circuit inductance”. That means a resulting very wide frequency range and low distortion bass response. This is another reason why the T-1500 excels over other 300B integrated amplifiers.
Allnic also uses a very big nickel core, so as not to be magnetically saturated at a high current of level of 100mA.
Long life and trouble-free operation. Allnic employs a “soft start circuit” to protect the tubes and other parts. It applies the high B+ voltage only after tubes are fully warmed-up.
Fixed bias control grid. Allnic prefers to use low distortion and high output “fixed bias” rather than the relatively higher distortion and lower output “self-bias” method. That way, it is possible to eliminate the use of cathode resisters and their associated heat production.
Natural negative feedback. The T-1500 applies about -6dB of negative feedback. This is a very complimentary amount of negative feedback that differentiates the Allnic 300B single ended amplifier from the standard, which has a very coloured and weak speaker driving force. With this natural feedback, the T-1500 has a relatively high “damping factor’, very low distortion, and a higher S/N ratio, without losing the signature single ended natural sound quality. We use a high quality 41 step silver contact attenuator (all resistors non-inductive) instead of a carbon filmed slide potentiometer.
“One of the world’s most beautifully crafted amplifiers. A stunning value.” – Stereophile CLASS A Component
“”These (top end and midrange) are the glory of the Allnic T1500 integrated amp. It simply lights up the music. It’s as if you can see it more clearly than with other amps. Compared to other amps even my beloved Wavac EC300B, the Allnic made it sounded like someone came along and hit a light switch and now I can hear everything clearer than before. Voices, strings, and horns all sounded so clear and allowed me to hear more air and nuances than I knew were there. This made the music sound so fast and so exciting.”
“I can assure you that your ecstasy is guaranteed. It is a product that yields much more than it costs and will satisfy even the most demanding owner.”
“If you want a no-hassle and mightily good looking valve amplifier, this should be at the top of your shortlist.”