Bella Extreme 100 mono bloc amps - response Audio

Response Audio · May 22, 2025, 09:55:29 AM

At one time, Response Audio bought out the remaining ASL Monsoon 100 watt/60 watt triode, mono bloc amplifiers.

As many know, we did extensive upgrades (complete rebuilds) to the Hurricane DT200 mono blocs.

We brought this same level of upgrades to the Monsoons which are the little brother to the Hurricanes. We were even allowed to sell them under our name.
Reviews were amazing. I can provide links.

I forgot I had these as they have been stored at a different location.

This picture is from one of the shows we did with Acoustic Zen and Modwright.

I will provide more pics of the actual piece for ale as well as precise upgrade details.

We are selling this pair for only $4,800 with Tung-Sol power tubes.

Please contact me if you are interested or have any questions.

Response Audio · May 22, 2025, 01:57:25 PM

Here is an internal pictures of the amps up for sale.

Extensive upgrades start by gutting existing parts and build up from scratch.
-V-Cap capacitors x10
-SonicCap input capacitors x4
- Dale RS Series triode mode resistors
- Dale RN Series throughout
- WBT Binding post
- 4 pieces Gold Bybee Purifiers in Balanced input stage
- Ultra Fast Vishay Diodes
- Cerafine front end bypass capacitors
- Power Supply electrolytics replaced.
- Cryo'ed Silver IEC connector
- 8x Tung-Sol Power Tubes.

Response Audio · May 28, 2025, 08:24:48 AM

Hello everyone.
We have two pair of these amplifiers available. Slight different internals but but Extremes.

Please visit our website page for these amplifiers and/or preamplifiers you may be interested in.
Full internal pictures shown.
We can custom build our preamplifiers to match your requirements.

https://responseaudiony.com/for-sale-items

Response Audio · May 30, 2025, 09:03:40 AM

Price on first pair lowered to $4,495 with Tung-Sol tubes. 3,995 without tubes for those who have a stash of 6550/KT88 tubes.

These are very rare amplifiers and you have the chance to own a pair (or two) of these beautiful sounding amplifiers.
Contact if interested in both pair.

Response Audio · May 31, 2025, 08:24:13 AM

We are looking to move all of our leftover inventory.
One this pair of Extremes, we are offering them for $3,995 including Tung-Sol power tubes.

Response Audio · June 05, 2025, 08:50:18 AM

Dwindling down.
Still have 2 remaining chassis that can house the following builds:
- Foundation v3 preamp $2,695
- Harmonia 45/2A3/300B output stage for source components - $2,995 (single ended)
- MB300H Hybrid GaN FET 300 watt stereo amplifier. $2,995

- Spirito 2A3 Linestage - we are on our final days of the introductory price of $2,995

Interested parties, please feel free to contact me with any questions you may have.

Response Audio · June 19, 2025, 08:14:12 AM

Some better pictures and a video

$3995 with 8x Tung-Sol 6550 tubes
$2995 w/out tubes.

Nick B · June 19, 2025, 11:46:30 AM

Quote from: Response Audio on June 19, 2025, 08:14:12 AMSome better pictures and a video

$3995 with 8x Tung-Sol 6550 tubes
$2995 w/out tubes.

Beautiful amps. What's the digital readout on the amps as they're playing? This would be used to bias the tubes?
Nick

Response Audio · June 20, 2025, 09:35:30 AM

Quote from: Nick B on June 19, 2025, 11:46:30 AM
Quote from: Response Audio on June 19, 2025, 08:14:12 AMSome better pictures and a video

$3995 with 8x Tung-Sol 6550 tubes
$2995 w/out tubes.

Beautiful amps. What's the digital readout on the amps as they're playing? This would be used to bias the tubes?
Nick

Yea sir and thank you Nick . The meters are for biasing. Each tube is individually biased. Normal is 500mV. I usually run between .450-.475 depending on the tubes used.

Nick B · June 20, 2025, 11:43:36 PM

Quote from: Response Audio on June 20, 2025, 09:35:30 AM
Quote from: Nick B on June 19, 2025, 11:46:30 AM
Quote from: Response Audio on June 19, 2025, 08:14:12 AMSome better pictures and a video

$3995 with 8x Tung-Sol 6550 tubes
$2995 w/out tubes.

Beautiful amps. What's the digital readout on the amps as they're playing? This would be used to bias the tubes?
Nick

Yea sir and thank you Nick . The meters are for biasing. Each tube is individually biased. Normal is 500mV. I usually run between .450-.475 depending on the tubes used.

Thanks for confirming, Bill. Great sound and looks....a very nice combination 👍

Response Audio · June 21, 2025, 09:47:32 AM

Thank you Nick. This weekend, I will be installing my prototype Spirito 2A3 DHT Linestage to the EXtremes! My personal favorite preamp.

Nick B · June 22, 2025, 12:21:23 AM

Quote from: Response Audio on June 21, 2025, 09:47:32 AMThank you Nick. This weekend, I will be installing my prototype Spirito 2A3 DHT Linestage to the EXtremes! My personal favorite preamp.

Just curious, Bill. Do any of your products have remote control or do you prefer the simpler, purist approach?

Response Audio · June 22, 2025, 08:52:07 AM

All preamps have remote volume. The 2A3 preamp above is my original prototype and the remote volume is not hooked up.
The Master Series will use autoformer attenuators.

Response Audio · June 22, 2025, 09:59:08 AM

Here is the video showing our Spirito 2A3 linestage driving the Bella Extreme 100 watt mono block amplifiers fitted with Tung-Sol 6550 tubes which will be included with the amplifiers.

Nick B · June 22, 2025, 06:56:26 PM

Quote from: Response Audio on June 22, 2025, 09:59:08 AMHere is the video showing our Spirito 2A3 linestage driving the Bella Extreme 100 watt mono block amplifiers fitted with Tung-Sol 6550 tubes which will be included with the amplifiers.

Very nice 🎶 I have no experience with DHT tubes and none of the guys in the now defunct Las Vegas audio club had that type of tube gear.